{"title":"Arduino \u0026 SCM Supplies - Boards \u0026 Shields","description":null,"products":[{"product_id":"current-to-voltage-module-0-4-20ma-to-0-3-3v5v10v-voltage-transmitter-signal-conversion-conditioning-adapter-0-4-20ma-to-0-3-3v5v10v","title":"Current to Voltage Module 0 \/ 4-20mA to 0-3.3V5V10V Voltage Transmitter Signal Conversion Conditioning Adapter, 0 \/ 4-20mA to 0-3.3V5V10V","description":"\u003cbr\u003e1. Power supply current: 0-20mA\u003cbr\u003e2. Power supply voltage: 0-10V\u003cbr\u003e3. Power supply voltage: 7-36V\u003cbr\u003e4. Packaging: Static Bag\u003cbr\u003e5. Features: Wide supply voltage range, support multiple ranges, high stability, good linearity, high-precision color ring resistance, high accuracy, low temperature drift, high power\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"0 \/ 4-20mA to 0-3.3V5V10V","offer_id":52628772979035,"sku":"TBD01458386","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD01458386.jpg?v=1773965551"},{"product_id":"ldtr-wg0003-l9110s-h-bridge-stepper-motor-dual-dc-motor-driver-controller-board","title":"LDTR - WG0003 L9110S H-bridge Stepper Motor Dual DC Motor Driver Controller Board","description":"1. Material: plastic, metal \u003cbr\u003e2. Size: 3*3*2cm \u003cbr\u003e3. Weight: 15g\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52628774781275,"sku":"DIY3204","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/DIY3204.jpg?v=1773965643"},{"product_id":"ttgo-t5-v2-3-1-ink-screen-depg0213bn-wifi-bluetooth-module-2-13-inch-ink-screen-development-board-depg0213bn","title":"TTGO T5 V2.3.1 ink screen DEPG0213BN WiFi Bluetooth Module 2.13 inch ink Screen Development Board, DEPG0213BN","description":"Overview \u003cbr\u003eDue to the advantages of ultra-low power consumption, wide viewing angle, and clear display without electricity, it is an ideal choice for applications such as shelf labels and industrial instruments. \u003cbr\u003e \u003cbr\u003eFeatures \u003cbr\u003e1. Without backlight, the last content can be displayed for a long time even if it is turned off \u003cbr\u003e2. Ultra-low power consumption, basically only need to refresh the power supply \u003cbr\u003e3. Attached with development resources and manuals (example of Arduin-esp32) \u003cbr\u003e \u003cbr\u003eProduct specifications \u003cbr\u003e1. Working voltage: 3.3V \u003cbr\u003e2. Interface: 3-wire SPI, 4-wire SPI \u003cbr\u003e3. Display color: black, white \u003cbr\u003e4. Grayscale: 2 \u003cbr\u003e5. Full refresh time: 8s \u003cbr\u003e6. Refresh power: 26.4mW (typical value) \u003cbr\u003e7. Driver chip: DEPG0213BN \u003cbr\u003e \u003cbr\u003eESP32 features: \u003cbr\u003e1. Immersion Gold Craft \u003cbr\u003e2. High cost performance \u003cbr\u003e3. Small size, easy to embed other products \u003cbr\u003e4. Powerful function supports LWIP protocol, Freertos \u003cbr\u003e5. WiFi supports three modes: AP, STA and AP + STA \u003cbr\u003e6. Support Windows system (cygwin and msys32) and Linux system \u003cbr\u003e7. Support Arduino-ide, ESP-IDF, Micropython multiple development environments \u003cbr\u003e8. Support Lua program, easy development\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"DEPG0213BN","offer_id":52628879311195,"sku":"DIY6210","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/DIY6210.jpg?v=1773971086"},{"product_id":"7-83hz-schumann-resonator-low-frequency-pulse-generator-universe","title":"7.83Hz Schumann Resonator Low Frequency Pulse Generator Universe","description":"\u003cbr\u003e1. Produced with precision components, low power consumption, no switch, can work after plugging in the power supply, with colorful breathing lights\u003cbr\u003e2. Acting on the space environment, it can relax peoples body and mind, improve the body perception of sound and images, improve human health, work efficiency, and mental stress.\u003cbr\u003e3. It can be placed on the table or bookshelf 1.5 meters above the ground in the bedroom\u003cbr\u003e4. All-around design, no dust accumulation will affect the circuit\u003cbr\u003e5. Front and back double-sided transmitting antennas\u003cbr\u003e6. Input voltage: DC12V\u003cbr\u003e7. Current: above 0.5A\u003cbr\u003e8. Material: PCB\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52629348122971,"sku":"TBD0602078001A","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0602078001A.jpg?v=1773982573"},{"product_id":"matching-base-board-with-40-pin-gpio-interface-and-gigabit-ethernet-rj45-port-d-robotics-rdk-x5-md-carrier-board","title":"Matching Base Board With 40-PIN GPIO Interface And Gigabit Ethernet RJ45 Port, D-Robotics RDK X5 MD Carrier Board","description":"\u003cbr\u003e1. Core board socket: compatible with all versions of RDK X5 MD\u003cbr\u003e2. Ethernet: Gigabit Ethernet RJ45 port\u003cbr\u003e3. USB: USB 3.0 host ports x 4; Micro USB 2.0 Device port x 1; Micro USB 2.0 (serial debug port)\u003cbr\u003e4. Connectors: 40-pin GPIO interface; 10-pin function control I\/O\u003cbr\u003e5. Display: MIPI-DSI interface (15-pin 1.0mm FPC connector); HDMI interface x 1\u003cbr\u003e6. Camera: MIPI-CSI (4-lane) interface x 2\u003cbr\u003e7. Real-time clock: battery-backed interface\u003cbr\u003e8. Storage: on-board Micro SD card slot (for RDK X5 MD versions without eMMC)\u003cbr\u003e9. Fan Interface: speed-adjustable, speed-measurable, 12V\u003cbr\u003e10. Other resources: CAN interface, power switch, PoE interface, etc.\u003cbr\u003e11. Power input: 5V 5A\u003cbr\u003e12. Size: about 9.9 x 7.9cm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"D-Robotics RDK X5 MD Carrier Board","offer_id":52629647163739,"sku":"TBD0606495301","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0606495301.jpg?v=1773991392"},{"product_id":"x5-ai-module-10-tops-computing-power-integrated-octa-core-cortex-a55-cpu-with-wireless-ram-emmc-waveshare-rdk-x5-md-104032","title":"X5 AI Module 10 TOPS Computing Power, Integrated Octa-Core Cortex A55 CPU With Wireless RAM EMMC, Waveshare RDK X5 MD 104032","description":"\u003cbr\u003e1. Octa-core Cortex A55 64-bit processor with BPU delivering 10 TOPS AI computing power\u003cbr\u003e2. Onboard dual-band Wi-Fi and Bluetooth module supporting Bluetooth 5.4 and Wi-Fi 6 for seamless connectivity anytime, anywhere\u003cbr\u003e3. Compatible with D-Robotics official base boards\u003cbr\u003e4. Supports rich interfaces including HDMI, Gigabit Ethernet, USB 3.0, MIPI CSI, and MIPI DSI for diverse peripheral connectivity\u003cbr\u003e5. Integrated PMIC power management IC, DC-DC converter, LPDDR4 memory, and eMMC storage for stable system operation\u003cbr\u003e\u003cbr\u003eParameters\u003cbr\u003e1. Processor: 8-core Cortex A55 64-bit SoC 1.5GHz\u003cbr\u003e2. BPU: equivalent to 10 TOPS\u003cbr\u003e3. Memory: 4GB\u003cbr\u003e4. Flash memory: 32GB\u003cbr\u003e5. Display:\u003cbr\u003e- 1 x HDMI interface (supporting 1080p 60)\u003cbr\u003e- 1 x MIPI DSI (4-lane) interface (supporting 2560 x 1440 60)\u003cbr\u003e6. Image: 2 x MIPI CSI (4-lane) camera interfaces\u003cbr\u003e7. Multimedia: 4Kp60 H.264 \/ H.265 (encoding\/decoding), MJPEG (encoding\/decoding)\u003cbr\u003e8. Power input: 5V 5A DC\u003cbr\u003e9. Operating temperature: -20°C - 60°C\u003cbr\u003e10. Peripheral interfaces:\u003cbr\u003e- Supports Gigabit Ethernet\u003cbr\u003e- 1 x USB 3.0 interface, 1 x USB 2.0\u003cbr\u003e- 8 x UART, 7 x I2C, 4 x SPI, 4 x 10-bit ADC, 2 x I2S, 2 x PDM, 8 x PWM, 8 x LPWM\u003cbr\u003e- SD card interface\u003cbr\u003e11. Size: about 5.5 x 4cm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Waveshare RDK X5 MD 104032","offer_id":52629648408923,"sku":"TBD0606506201","price":214.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0606506201.jpg?v=1773991440"},{"product_id":"waveshare-cm5-dual-network-port-expansion-board-onboard-usb-3-2-gen1-x-2-supports-poe-module-connection-32580","title":"WAVESHARE CM5 Dual Network Port Expansion Board Onboard USB 3.2 Gen1 X 2, Supports PoE Module Connection, 32580","description":"\u003cbr\u003e1. Networking: 1000M Ethernet RJ45 interface; 2500M Ethernet RJ45 interface\u003cbr\u003e2. Connector: Raspberry Pi 40PIN GPIO interface\u003cbr\u003e3. USB: USB 3.2 Gen1 x 2\u003cbr\u003e4. MIPI: 4-lane MIPI interface × 2 (22PIN 0.5mm FFC connector)\u003cbr\u003e5. Video: HDMI interface x 2, supports dual 4K output\u003cbr\u003e6. M.2: M.2 M KEY (PCIe Gen2\/3 x1)\u003cbr\u003e7. M.2 (4G\/5G): B KEY, supports 4G\/5G communication module\u003cbr\u003e8. Storage: Onboard Micro SD card slot (for CM5 versions without eMMC)\u003cbr\u003e9. Fan Interface: 5V, 4PIN JST-SH PWM fan connector\u003cbr\u003e10. Power Input: 7V ~36V wide voltage (round terminal), 5V 5A (Type-C)\u003cbr\u003e11. Supports 4-screen display, with added MIPI DSI driver; the system will default to connecting to the screens regardless of whether they are connected, and the screens will display in split-screen mode (this depends on the system version).\u003cbr\u003e12. Dimensions: 99.60 x 87.00 mm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"32580","offer_id":52629738357083,"sku":"TBD0606629001A","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0606629001A.jpg?v=1773992757"},{"product_id":"for-jetson-orin-nano-nx-super-dual-ethernet-base-board-24359","title":"For Jetson Orin Nano \/ NX Super Dual Ethernet Base Board, 24359","description":"\u003cbr\u003e1. Camera input: expands two CSI interfaces for AI applications such as facial recognition, road sign detection, line recognition, and license plate recognition\u003cbr\u003e2. 7 USB Ports: 4 Type-A + 1 Type-C + 2 USB 2.0 ribbon cables for diverse peripherals. USB 3.2 Gen 2 port supports up to 10Gbps data transfer; Type-C port enables system flashing\u003cbr\u003e3. 4K HD Output via DisplayPort interface\u003cbr\u003e4. Color-coded 40-pin GPIO interface for expanding I2C, SPI, I2S, UART, and GPIO resources\u003cbr\u003e5. Flexible storage and wireless expansion: Base board features two M.2 Key M slots for SSDs and an M.2 Key E interface for wireless network cards, minimizing cable clutter\u003cbr\u003e6. Size: about 10.3 x 9.05 cm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"24359","offer_id":52629761851739,"sku":"TBD0606655301","price":222.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0606655301.jpg?v=1773993563"},{"product_id":"jetson-orin-nano-nx-super-base-board-based-on-jetson-orin-nano-nx-ai-module-33495","title":"Jetson Orin Nano \/ NX Super Base Board Based On Jetson Orin Nano\/NX AI Module, 33495","description":"\u003cbr\u003e1. Supports Orin core module, compatible with NVIDIA Jetson Orin Nano and Jetson Orin NX core boards\u003cbr\u003e2. Connects to cameras, expands two CSI interfaces, suitable for AI intelligent application scenarios such as face recognition, road marking line recognition, and license plate recognition\u003cbr\u003e3. Five USB interfaces, four Type-A and one Type-C. Can connect more and more external devices. The USB 3.2 Gen 2 interface can support up to 10Gbps data transmission, and the Type-C interface can be used for system burning\u003cbr\u003e4. Color 40PIN GPIO interface, uses colors for distinction, expands I2C, SPI, I2S, UART and GPIO resources\u003cbr\u003e5. Flexible storage and wireless expansion. The base board expands two M.2 Key M interfaces to facilitate users to connect solid-state hard drives, and the M.2 Key E interface is provided for users to connect wireless network cards, reducing the constraints of wires for the device\u003cbr\u003e6. Size: about 10.3 x 9.05cm\u003cbr\u003e7. Note: this product is only the base board and needs to be used in combination with the core board\u003cbr\u003e\u003cbr\u003ePackaging list: \u003cbr\u003e- JETSON-ORIN-IO-BASE-H x 1\u003cbr\u003e- Screw cap x 1","brand":"GadgetHQ","offers":[{"title":"33495","offer_id":52629794914651,"sku":"TBD0606707101","price":203.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0606707101.jpg?v=1773994299"},{"product_id":"luckfox-aura-high-performance-linux-development-board-rockchip-rv1126b-quad-core-1-6ghz-processor-ram-2gb-no-emmc-ram-2gb-emmc-flash-64gb-ram-4gb-no-emmc-ram-4gb-emmc-flash-64gb","title":"Luckfox Aura High-Performance Linux Development Board Rockchip RV1126B Quad-Core 1.6GHz Processor, RAM 2GB No eMMC, RAM 2GB eMMC Flash 64GB, RAM 4GB No eMMC, RAM 4GB eMMC Flash 64GB","description":"\u003cbr\u003e1. Processor: quad-core Arm Cortex-A53 1.6GHz\u003cbr\u003e2. Memory: optional 2GB \/ 4GB LPDDR4X memory\u003cbr\u003e3. Flash memory: optional 0GB \/ 64GB eMMC flash memory\u003cbr\u003e4. NPU: 3 TOPS INT8, supporting INT4, INT8, INT16 and FP16 operators\u003cbr\u003e5. ISP: supports 12MP, supports various algorithm accelerators such as HDR, 3A, LSC, 3DNR, 2DNR, sharpening, haze removal, fisheye correction and Gamma correction, integrates 8MP AI-ISP, which can enhance spatial noise reduction performance and image enhancement effect\u003cbr\u003e6. Storage: Micro SD card interface\u003cbr\u003e7. Video output: 4-lane MIPI DSI (1920x1080 60fps) interface x 1\u003cbr\u003e8. Video input: 4-lane MIPI CSI camera interface x 2\u003cbr\u003e9. USB: USB3.0 OTG Type-C interface x 1; USB2.0 HOST Type-A interface x 4\u003cbr\u003e10. Audio: surface microphone; 3.5mm headphone\/microphone interface\u003cbr\u003e11. GPIO: 40PIN interface (compatible with some Raspberry Pi HAT expansion boards)\u003cbr\u003e12. System support: Buildroot, Debian\u003cbr\u003e13. Power input: 5V DC\u003cbr\u003e14. Encoding\/decoding: decoding: 4K 30fps (H.265\/HEVC, H.264\/AVC); encoding: 4K 30fps (H.265\/HEVC, H.264\/AVC) \u003cbr\u003e\u003cbr\u003ePackaging list:\u003cbr\u003e- Development board x 1\u003cbr\u003e- SH1.0 3PIN connection cable about 100mm x 2\u003cbr\u003e- IPEX 4-to-SMA external threaded internal hole x 2\u003cbr\u003e- Rubber antenna 6DB about 17cm x 2\u003cbr\u003e- USB Type-A to Type-C cable about 1 meter x 1","brand":"GadgetHQ","offers":[{"title":"RAM 2GB No eMMC","offer_id":52629795012955,"sku":"TBD0606707701","price":173.99,"currency_code":"USD","in_stock":true},{"title":"RAM 2GB eMMC Flash 64GB","offer_id":52629795045723,"sku":"TBD0606707702","price":241.99,"currency_code":"USD","in_stock":true},{"title":"RAM 4GB No eMMC","offer_id":52629795078491,"sku":"TBD0606707703","price":249.99,"currency_code":"USD","in_stock":true},{"title":"RAM 4GB eMMC Flash 64GB","offer_id":52629795111259,"sku":"TBD0606707704","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0606707701.jpg?v=1773994328"},{"product_id":"6966-diy-bluetooth-5-0-audio-receiver-board-module-mp3-lossless-player-wireless-stereo-music-amplifier-module","title":"6966 DIY Bluetooth 5.0 Audio Receiver Board Module MP3 Lossless Player Wireless Stereo Music Amplifier Module","description":"\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e1. Using Bluetooth 5.0 main control chip, good transmission effect and high stability \u003cbr\u003e2. With button control, there are control up and down music, volume addition and subtraction, playback, pause, switch machine, etc., and reserved high and low level control interfaces, regardless of daily use, and DIY modification, it is very playable \u003cbr\u003e3. Micro 5 Pin interface power supply, ordinary mobile phone charger charging cable can be used. \u003cbr\u003e4. Product use: Bluetooth audio signals from mobile phones, laptops, and tablets can be transmitted to power amplifiers, active speakers and other devices through this Bluetooth audio receiver. The audio interface can also be connected to ordinary headphones with a 3.5mm interface. The headset becomes a Bluetooth headset (without a microphone, voice chat is not supported)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecification\u003c\/b\u003e\u003cbr\u003e1. Power interface: Micro 5 Pin (reserved 2.5mm welding port, this model does not support battery power supply) \u003cbr\u003e2. Input voltage: 3.7V-5V \u003cbr\u003e3. Signal-to-noise ratio: 90DB \u003cbr\u003e4. THD+N: -70DB \u003cbr\u003e5. Crosstalk: -86db \u003cbr\u003e6. DNR: 91dB \u003cbr\u003e7. Transmission protocol: A2DP\/AVCTP\/AVDTP\/HFP \u003cbr\u003e8. Transmission distance: about 10 meters (the shorter the distance, the better the stability) \u003cbr\u003e9. Output interface: 3.5mm stereo (reserved soldering points, you can DIY by yourself) \u003cbr\u003e10 Dimensions: 30mm x 30mm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Black","offer_id":52632180326747,"sku":"DIY0156B","price":12.99,"currency_code":"USD","in_stock":true},{"title":"White","offer_id":52632180359515,"sku":"DIY0156W","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/DIY0156B.jpg?v=1774013536"},{"product_id":"xbee-sensor-expansion-shield-v5-with-rs485-bluebee-bluetooth-interface-for-arduino","title":"Xbee Sensor Expansion Shield V5 with RS485 BlueBee Bluetooth Interface for Arduino","description":"1. Type: Shield  \u003cbr\u003e2. Mainly Compatible with: Ardunio\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52632207622491,"sku":"DIY4043","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/DIY4043.jpg?v=1774013947"},{"product_id":"landatianrui-ldtr-wg0107-esp-12f-wifi-module-cloud-development-board-ldtr-wg0107-esp-12f","title":"LandaTianrui LDTR - WG0107 ESP - 12F WiFi Module Cloud Development Board, LDTR - WG0107 ESP - 12F","description":"1. This is a cloud intelligent hardware development board kit, simple and cost-effective \u003cbr\u003e2. Use EMC's witty cloud SDK to quickly realize the secondary development \u003cbr\u003e3. The DEMO board can use mobile phone to control the panel mount of RGB colorful lights and display environment brightness by photosensitive resistance through APP of mobile phone \u003cbr\u003e4. Only needs half an hour modification, you can create your own remote control device system.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"LDTR - WG0107 ESP - 12F","offer_id":52632208277851,"sku":"DIY9897","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/DIY9897.jpg?v=1774013980"},{"product_id":"ne555-frequency-adjustable-pulse-generator-module-ne555-frequency-module","title":"NE555 Frequency Adjustable Pulse Generator Module, NE555 Frequency Module","description":"\u003cbr\u003e1. Working voltage: 5 ～ 12V\u003cbr\u003e2. Board size: 29 (mm) x12 (mm)\u003cbr\u003e3. Chip: NE555 chip on board\u003cbr\u003e4. Resistance: adjustable\u003cbr\u003e5. Packing: static bag\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"NE555 Frequency Module","offer_id":52632832868699,"sku":"TBD02015944","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD02015944.jpg?v=1774023071"},{"product_id":"5-pcs-hw-131-power-supply-module-3-3v-5v-bread-board-hw-131","title":"5 PCS HW-131 Power Supply Module 3.3V 5V Bread Board, HW-131","description":"\u003cbr\u003e1. Two sets of 3.3V and 5V DC output pins are on board, which is convenient for external use\u003cbr\u003e2. The upper and lower two channels are independently controlled, which can be switched to 0V, 3.3V, 5V\u003cbr\u003e3. Output current: Less than 700ma\u003cbr\u003e4. Output voltage: 3.3V, 5V can be switched\u003cbr\u003e5. Input voltage: 6.5-12V (DC) or USB power supply\u003cbr\u003e6. Dimensions: 32.2 x 52.8 x 20.7mm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"HW-131","offer_id":52632852627803,"sku":"TBD05721591","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD05721591.jpg?v=1774023694"},{"product_id":"ldtr-wg0158-stm32f103c8t6-stm32-development-board","title":"LDTR-WG0158 STM32F103C8T6 STM32 Development Board","description":"\u003cb\u003eFeatures\u003cbr\u003e\u003c\/b\u003e1. On-board SWD interface, and it can be  programmed with ST-LINK V2.\u003cbr\u003e2. On-board test indicator LED, and the beginners can program to control it.\u003cbr\u003e3. On-board 100ma 3.3V Regulator.\u003cbr\u003e4. All GPIO are led out and the names of the pins are marked。\u003cbr\u003e5. Microcontroller: STM32F103C8T6.\u003cbr\u003e6. Burning times: 10k cycles\u003cbr\u003e7. Operating voltage: 3.3 V.\u003cbr\u003e8. IO logic voltage: 3.3V\u003cbr\u003e9. Digital I\/O Pins: 37.\u003cbr\u003e10. Analog Input Pins: 10 (12bits).\u003cbr\u003e11. Flash Memory: 64KB.\u003cbr\u003e12. RAM: 20KB.\u003cbr\u003e13. Programmable Clock Speed: 72 MHz (MAX).\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecification\u003c\/b\u003e \u003cbr\u003e1. Model: DTR-WG0158\u003cbr\u003e2. Quantity: 1 set\u003cbr\u003e3. Color: Blue + Yellow\u003cbr\u003e4. Material: PCB + Alloy + Plastic\u003cbr\u003e5. Chipset: STM32F103C8T6\u003cbr\u003e6. Dimensions (5.5 cm x 2.2 cm x 1.2 cm), weight (7.5g)\u003cbr\u003e7. Packing List: \u003cbr\u003e- 1 x STM32F103C8T6 development board\u003cbr\u003e- 2 x 1X20P pin headers (2.54mm pitch)\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52632905580891,"sku":"ZY14047767","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/ZY14047767.jpg?v=1774024465"},{"product_id":"ldtr-wg0178-lm2596-power-step-down-voltage-regulator-module-voltmeter-display-lm2596-4-40v-to-1-5-37v-2a","title":"LDTR-WG0178 LM2596 Power Step-down Voltage Regulator Module Voltmeter Display, LM2596 4-40V to 1.5-37V 2A","description":"1. Input voltage range: 4-40V DC; \u003cbr\u003e2. Output voltage range: 1.25-37VDC adjustable; \u003cbr\u003e3. Output current: 2A; \u003cbr\u003e4. Voltmeter range: 0 to 40V, error +\/-0.1V; \u003cbr\u003e5. Input reverse polarity protection; Built in output short protection function; \u003cbr\u003e6. Built in thermal shutdown function; \u003cbr\u003e7. Press the rightkey to let the display show the input or output voltage. when the right out led light, it shows output, the left IN led show input.\u003cbr\u003e8. Model: LDTR-WG0178\u003cbr\u003e9. Quantity: 1 piece\u003cbr\u003e10. Form Color: Deep Blue\u003cbr\u003e11. Material: PCB + electronic components\u003cbr\u003e12. Dimensions: 2.36 in x 1.38 in x 0.55 in (6 cm x 3.5 cm x 1.4 cm)\u003cbr\u003e13. Weight: 0.74 oz (21 g)\u003cbr\u003e14. Packing List: 1 x Module\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"LM2596 4-40V to 1.5-37V 2A","offer_id":52632906957147,"sku":"ZY14082124","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/ZY14082124.jpg?v=1774024476"},{"product_id":"ldtr-wg0238-x9c104-digital-potentiometer-module-for-arduino-x9c104","title":"LDTR-WG0238 X9C104 Digital Potentiometer Module For Arduino, X9C104","description":"1. In resistance tester circuit, it is necessary to adjust the potentiometer to balance the resistance tester. Under the influence of temperature, humidity and vibration impact, the position and specifications of the potentiometer will be changed when being used,  the system index is also changed. Therefore, to make the system back to the original state it needs to be adjusted, and digital potentiometer module can just solve this problem.\u003cbr\u003e2. The digital potentiometer changes in steps or incrementally, and the resistance is of linear change. For example, the resistance range of X9C104 is 40R~1000k,  divided into 100 steps, so each increment is 1010R.\u003cbr\u003e3. With temperature compensation function: the resistance deviation between endpoints is +\/-20%;\u003cbr\u003e4. Sliding end data can be kept for a long time, about 100 years;\u003cbr\u003e5. With 1% high resistance resolution;\u003cbr\u003e6. Working voltage: 5V;\u003cbr\u003e7. Total resistance: 100kΩ;\u003cbr\u003e8. End voltage: -5~5V;\u003cbr\u003e9. Tap number: 100;\u003cbr\u003e10. Interface: CS, U\/D, INC;\u003cbr\u003e11. Resistance increase mode: Linear change;\u003cbr\u003e12. Working current: 3mA;\u003cbr\u003e13. Package temperature: 8SOIC\/-40~85 C;\u003cbr\u003e14. Taps will automatically store data when being off.\u003cbr\u003e15. Package included: 1 x X9C104 Digital Potentiometer Module\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"X9C104","offer_id":52632911577435,"sku":"ZY14290225L","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/ZY14290225L.jpg?v=1774024575"},{"product_id":"uno-r3-ch340g-improved-version-development-board-ch340g-without-cable-ch340g-with-150cm-cable-ch340g-with-50cm-cable-ch340g-with-30cm-cable","title":"UNO R3 CH340G Improved Version Development Board, CH340G without Cable, CH340G with 150cm Cable, CH340G with 50cm Cable, CH340G with 30cm Cable","description":"Type:Voltage Regulator\u003cbr\u003e1. Packaging Electrostatic bag\u003cbr\u003e2. It use the same as official R3 board\u003cbr\u003e3. Use: Instrument\u003cbr\u003e4. Power supply voltage: 5v~9v\u003cbr\u003e5. Output voltage: 5V DC voltage output and 3.3V DC voltage output\u003cbr\u003e6. Plug in the development board, the driver will be installed automatically\u003cbr\u003e7. Select the board in die\u003cbr\u003e8. Select the COM port, this can be queried in my computer, just the port inside your development board\u003cbr\u003e9. It is best to choose the program that comes with it, PROGRAMMER it in.\u003cbr\u003e10. Added pin header, easy to use\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"CH340G without Cable","offer_id":52632971575643,"sku":"TBD052656601","price":22.99,"currency_code":"USD","in_stock":true},{"title":"CH340G with 150cm Cable","offer_id":52632971608411,"sku":"TBD052656602","price":21.99,"currency_code":"USD","in_stock":true},{"title":"CH340G with 50cm Cable","offer_id":52632971641179,"sku":"TBD052656603","price":18.99,"currency_code":"USD","in_stock":true},{"title":"CH340G with 30cm Cable","offer_id":52632971673947,"sku":"TBD052656604","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD052656601.jpg?v=1774025486"},{"product_id":"30-pcs-4a-2-tandem-7-4v-8-4v-18650-lithium-battery-protection-board-anti-overcharge-anti-overdischarge","title":"30 PCS  4A  2-Tandem 7.4V \/ 8.4V 18650 Lithium Battery Protection Board,  Anti-Overcharge, Anti-Overdischarge","description":"\u003cbr\u003e1. Dimensions: 35x16.6x2.5 mm\u003cbr\u003e2. Upper limit working current: 3A\u003cbr\u003e3. Upper limit instantaneous current: 5A\u003cbr\u003e4. Overcharge voltage range: 4.28V +\/- 0.05V\u003cbr\u003e5. Over discharge voltage range: 2.9V +\/-  0.05V\u003cbr\u003e6. Quiescent current: less than 3uA\u003cbr\u003e7. Charging voltage: 8.4-9V\u003cbr\u003e8. Short circuit protection: protectable, delayed self-recovery\u003cbr\u003e9. Lithium battery protection board cannot be used for lithium iron phosphate battery, hernia lamp, hand drill battery pack. Electric fish machine battery pack. Please pay attention to the electric bicycle battery pack, childrens car battery, 550 or more power motor, 1W fisheye LED, etc., for the above combination purchase\u003cbr\u003e10. The described power range is applicable to the following products: massager battery pack, LED lamp backup power supply, 12V electronic products, solar street lamp battery pack, monitoring backup power supply and other products.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52633031967067,"sku":"TBD04242735","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD04242735.jpg?v=1774026586"},{"product_id":"3-7v-2-24v-to-5v12v-dc-dc-high-power-boost-module","title":"3.7V 2-24V To 5V12V DC-DC High Power Boost Module","description":"\u003cbr\u003e1. Input voltage: 2-24V\u003cbr\u003e2. Output voltage: 3-30V (note: the USB port is directly connected to the output port, which is an adjustable voltage port of 3-30V, not a 5V port. When connecting a 5V device, please confirm the output voltage of the USB port to avoid excessive voltage cause burnout of equipment)\u003cbr\u003e3. Input current: up to 15A\u003cbr\u003e4. Output current: up to 4A\u003cbr\u003e5. Output power: 3.7V input, up to 45W, 12V input, up to 80W\u003cbr\u003e6. Output ripple: two-stage filtering, low ripple output\u003cbr\u003e7. Input overcurrent protection: 15A fuse\u003cbr\u003e8. Input anti-reverse protection: high efficiency MOS type\u003cbr\u003e9. Input under-voltage protection: If you need to prevent the lithium battery from over-discharging, please weld a 5.6k resistor at R22 in the lower left corner of the module, work above 3.5V, stop below 3V\u003cbr\u003e10. Size: about 8x3.15x2.05cm\u003cbr\u003e11. Weight: about 36g\u003cbr\u003e\u003cbr\u003eFeatures:\u003cbr\u003e1. Special structure, support 2V low voltage input, no fear of low voltage, suitable for 18650 high-power boost\u003cbr\u003e2. High power, the input current can reach 15A, the output current can reach 4A, when 37V input, the output power can reach 45W, when 12V input, the output power can reach 80W\u003cbr\u003e3. Perfect protection mechanism, input reverse connection to prevent burning, input over-current protection, input under-voltage protection, output anti-backflow, constant voltage and constant current, can be directly connected to the battery for charging\u003cbr\u003e4. High efficiency, two-stage filtering, low ripple, reliable and stable performance\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52633101205851,"sku":"TBD0602106801A","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0602106801A.jpg?v=1774028005"},{"product_id":"15w-3a-high-power-ups18650-lithium-battery-boost-charging-module-5v-9v-12v","title":"15W 3A High-power UPS18650 Lithium Battery Boost Charging Module, 5V, 9V, 12V","description":"\u003cbr\u003eNotes:\u003cbr\u003e1. There are MOS and other components on the board, which are easily damaged by soldering iron induction electricity or static electricity. Please make sure that the soldering iron used is grounded (and the ground wire of the power strip is connected). It is best to wear anti-static gloves when operating.\u003cbr\u003e2. Be careful not to install the battery upside down, otherwise the board may burn.\u003cbr\u003e3. Please choose a power supply with sufficient power. Only in this way can the board work properly.\u003cbr\u003e4. The board power supply should not be higher than 5V.\u003cbr\u003e5. Please do not modify the board without technical confirmation.\u003cbr\u003e6. It is normal for the module to heat up when working at high power, just pay attention to fanning.\u003cbr\u003e\u003cbr\u003eProduct Introduction:\u003cbr\u003e1. This product is suitable for power-off equipment without power outages. When there is power, use external power supply, and automatically switch to battery power supply seamlessly when there is a power outage.\u003cbr\u003e2. If the USB interface is used for power supply, it is recommended to use the Type-c interface. Compared with the microUSB interface, the current that can pass is much larger, and the maximum current that can pass is 5A.\u003cbr\u003e3. Suitable for routers, cameras, development boards and other devices, seamlessly switch to battery power when power is off, and keep the network connected when power is off.\u003cbr\u003e4. Seamless switching between external power supply and battery dual power supply (no delay)\u003cbr\u003e5. Uninterrupted power supply, automatic start when power is off, automatic charging when incoming call.\u003cbr\u003e6. Output voltage 5V\/9V\/12V optional, other voltages can be customized.\u003cbr\u003e7. Four practical functions: lithium battery charging, lithium battery protection, boost output, and UPS switching.\u003cbr\u003e8. Two-color LED indicates charging status, the green light is always on when full, and charging stops automatically.\u003cbr\u003e9. Type-C interface, large current.\u003cbr\u003e10. Product size: 89 x 42mm\u003cbr\u003e11. Weight: about 37g\u003cbr\u003e\u003cbr\u003eFunction description:\u003cbr\u003e1. UPS function: When the power supply is powered, the power supply directly supplies power to the load through the boost circuit, and charges the lithium battery at the same time. Once the power supply is off, the battery path is automatically started to supply power to the load through the boost circuit.\u003cbr\u003e2. Boost circuit: peak power up to 20W, rated power up to 15W, BOST boost circuit, built-in 12A high current MOS, efficiency up to 96%, module static power consumption 25mA, optional 5V\/9V\/12V output.\u003cbr\u003e(Load normal recommendation \u0026lt;15W. Output 5V: current 3A, output 9V: current 1.6A, output 12V: current 1.2A)\u003cbr\u003e3. Lithium battery protection overcharge, over discharge, over temperature, over current protection (if short-circuited by mistake, it will enter the protection state and no output, and it will automatically activate and restore output when connected to 5V charging)\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"5V","offer_id":52633325863259,"sku":"TBD0605732201A","price":12.99,"currency_code":"USD","in_stock":true},{"title":"9V","offer_id":52633325896027,"sku":"TBD0605732201B","price":12.99,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":52633325928795,"sku":"TBD0605732201C","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0605732201A.jpg?v=1774032090"},{"product_id":"schumann-signal-7-83hz-low-frequency-pulse-generator-improves-sound-quality-cd01","title":"Schumann Signal 7.83Hz Low Frequency Pulse Generator Improves Sound Quality, CD01","description":"\u003cbr\u003e1. Battery powered, no voltage ripple, more accurate output frequency\u003cbr\u003e2. Polymer lithium battery with overcharge\/overdischarge\/overcurrent protection\u003cbr\u003e3. Small size, easy to use, good effect\u003cbr\u003e4. Power supply: 5V Micro USB interface charging cable\u003cbr\u003e5. Battery: lithium polymer battery, capacity 850mAh\u003cbr\u003e6. Charging current: 250mA\u003cbr\u003e7. Working current: 7mA\u003cbr\u003e8. Charging time: about 6 hours fully charged\u003cbr\u003e9. Use time: about 200 hours\u003cbr\u003e10. Size: about 6.8x5.2x1.2cm\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"CD01","offer_id":52634858258779,"sku":"TBD06020774","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD06020774.jpg?v=1774041096"},{"product_id":"digital-display-high-precision-double-off-automatic-constant-temperature-humidity-control-panel","title":"Digital Display High-Precision Double-Off Automatic Constant Temperature Humidity Control Panel","description":"\u003cbr\u003e1. Temperature measurement range: -20-60 degrees Celsius\u003cbr\u003e2. Humidity range: 0-100 percent RH\u003cbr\u003e3. Detection probe: Integrated sensor\u003cbr\u003e4. Output type: relay output\u003cbr\u003e5. Output capacity: up to 10A\u003cbr\u003e6. Power supply voltage: DC 6-30V\u003cbr\u003e7. Suitable for opening size: about 7.5x3.95cm\u003cbr\u003e8. Weight: about 95 grams\u003cbr\u003e9. Appearance size: about 7.1x3.9cm\u003cbr\u003e\u003cbr\u003eFunction:\u003cbr\u003e1. Remote reading\/setting of parameters: parameters such as start temperature\/humidity, stop temperature\/humidity, temperature\/humidity, correction can be set through UART\u003cbr\u003e2. Real-time temperature\/humidity reporting: If the temperature\/humidity reporting function is enabled, the temperature\/humidity and relay status will be detected at 1s intervals, and transmitted to the terminal through UART to facilitate data collection\u003cbr\u003e3. Relay enable (default on): If the relay enable is turned off, the relay remains disconnected\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52634863239515,"sku":"TBD06021058","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD06021058.jpg?v=1774041157"},{"product_id":"waveshare-imx219-120-8mp-120-degree-fov-camera-applicable-for-jetson-nano","title":"Waveshare IMX219-120 8MP 120 Degree FOV Camera, Applicable for Jetson Nano","description":"Features\u003cbr\u003e1. Supports NVIDIA Jetson Nano Developer Kit\u003cbr\u003e2. 8 Megapixels\u003cbr\u003e3. Sensor:  IMX219\u003cbr\u003e4. Resolution: 3280 × 2464\u003cbr\u003e5. Lens specifications:\u003cbr\u003e- CMOS size: 1\/4inch\u003cbr\u003e- Aperture (F): 2.2\u003cbr\u003e- Focal Length: 1.88mm\u003cbr\u003e- Angle of View (diagonal): 120 degree\u003cbr\u003e- Distortion: \u0026lt;13.6%\u003cbr\u003e- Lens dimensions: 6.5mm x 6.5mm\u003cbr\u003e6. 4 screw holes\u003cbr\u003e7. Used for attachment\u003cbr\u003e8. Provide 3.3V power output\u003cbr\u003e9. Dimension: 25mm x 24mm\u003cbr\u003e10. Weight: 12g\u003cbr\u003e\u003cbr\u003ePacking List:\u003cbr\u003e1. IMX219-120 Camera x1\u003cbr\u003e2. 15-pin FFC (opposite sides contact) x1\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52634994475355,"sku":"ZY23184736","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/ZY23184736.jpg?v=1774043070"},{"product_id":"4-20ma-0-10v-signal-generator-adjustable-voltage-current-simulator-without-battery","title":"4-20mA 0-10V  Signal Generator Adjustable Voltage Current Simulator, Without Battery","description":"\u003cbr\u003e1. Output range: 0-20mA, 4-20mA, 0-22mA, 0-1V, 0-5V, 0-10V, 0-2.5V, 0-3.3V, -5V to 5V, 1-5V, 2- 10V, etc. can be switched and adjustable.\u003cbr\u003e2. Display mode: actual current\/voltage signal value display, 0.0-100%, 0.0-50.0(Hz), switchable.\u003cbr\u003e3. The user can set 9 fast signal output points, which is more convenient for debugging.\u003cbr\u003e4. Support 24V working power for terminal blocks and 5V working power for USB ports, which can be used in indoor or outdoor industrial sites\u003cbr\u003e5. The output accuracy can be calibrated by the user, the output accuracy is 0.01V, 0.01mA, and the LED display output signal value is accurate.\u003cbr\u003e6. The adjustment steps can be fine-tuned or coarse-tuned, and can be switched.\u003cbr\u003e7. The signal generator has short circuit protection circuit and reverse polarity protection circuit.\u003cbr\u003e8. The default output range is 0-10V, 0-20mA, and the user can adjust it to output -10V to -10V, 4-20mA and other output ranges.\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Without Battery","offer_id":52635173257563,"sku":"TBD0602128301A","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0602128301A.jpg?v=1774046972"},{"product_id":"atmega16u2-mega328p-chip-for-arduino-uno-r3-development-board-mega328p-chip","title":"ATMEGA16U2+MEGA328P Chip For Arduino UNO R3 Development Board, MEGA328P Chip","description":"\u003cbr\u003e1. Arduino can simply use sensors and connect various electronic components (such as LED lights, buzzers, buttons, photoresistors, etc.) to make a variety of interesting works.\u003cbr\u003e2. Main control chip: ATMMega328P\u003cbr\u003e3. SRAM: 2KB\u003cbr\u003e4. Working voltage: 5V\u003cbr\u003e5. Analog input pins: A0-A5\u003cbr\u003e6. Input voltage: 7-12V\u003cbr\u003e7. EEPROM: 1KB\u003cbr\u003e8. Digital I\/O pins: 0-13 (6 supports PWM)\u003cbr\u003e9. Clock frequency: 16MHz\u003cbr\u003e10. Memory: 32KB\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"MEGA328P Chip","offer_id":52635403190619,"sku":"TBD0603937301","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0603937301.jpg?v=1774050919"},{"product_id":"vu-meter-driver-board-module-adjusts-power-amplifier-ts-vu003","title":"VU Meter Driver Board Module Adjusts Power Amplifier, TS-VU003","description":"\u003cbr\u003e1. AC\/DC12-16V power supply, distinguish between AC and DC input terminals. L, G, R: These are the dual-channel input terminals of the driver board, which can be connected to the audio of mobile phones, computer sound cards, preamplifiers and other audio source devices (the signal is the signal that the headphones can hear), and the amplifier output terminal to get the signal. When wiring, L, G, and R correspond to the left, ground, and right channels of the audio source device respectively. If the input is a mobile phone, computer sound card, preamplifier and other audio sources, please turn the dip switches 1 and 3 to the ON end. 1. AC\/DC12-16V power supply, distinguish between AC and DC input terminals\u003cbr\u003e2. L, G, R: This is the dual-channel input terminal of the driver board, which can be connected to the audio of mobile phones, computer sound cards, preamplifiers and other audio source devices (the signal is the signal that can be heard by headphones), and the output of the power amplifier. When wiring, L, G, and R correspond to the left, ground, and right channels of the audio source device respectively. If the input is a mobile phone, computer sound card, preamplifier and other audio sources, please turn the dip switches 1 and 3 to the \"ON\" end. If the input is the output of the power amplifier, please turn the dip switches 2 and 4 to the \"ON\" end. The signal will be compressed 11 times. Note that the dip switches 1 to 4 cannot be turned to the \"ON\" end at the same time.\u003cbr\u003e3. The adjustable potentiometer \"100R-V\" is used to adjust the brightness of the vu meter backlight\u003cbr\u003e4. The adjustable potentiometers \"50k-1\" and \"50k-2\" control the pointer jump amplitude of VU meter 1 and VU meter 2 respectively\u003cbr\u003e5. Made of high-quality glass fiber ABS material\u003cbr\u003e6. The driver board components are finely manufactured and durable\u003cbr\u003e7. Stable performance makes the VU meter better, the pointer swings quickly, the response is sensitive, the wide range voltage stabilization circuit, and the working performance is more stable\u003cbr\u003e8. This driver board supports low access, has adjustable brightness and darkness backlight, and intelligent drive\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"TS-VU003","offer_id":52635443560795,"sku":"TBD0605094001A","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/TBD0605094001A.jpg?v=1774052722"},{"product_id":"2w-schumann-wave-signal-generator-land-resonance-frequency-7-83hz-wave-generator","title":"2W Schumann Wave Signal Generator Land Resonance Frequency 7.83hz Wave Generator","description":"1. Schumann wave is a beneficial pulsating rhythmic wave that appears in the ionosphere of the atmosphere. Its frequency is 7.83Hz, which is exactly the same as the frequency of the hippocampus in the brain of mammals.\u003cbr\u003e2. It helps with sleep and improves the taste of wine, tea and water.\u003cbr\u003e3. Relieve stress, 3 color LEDs, a 7.83Hz working indicator light, and a purple sterilization LED that flashes according to the working frequency.\u003cbr\u003e4. It comes with a USB cable and can be directly plugged into a 5V power supply for use.\u003cbr\u003e5. Power supply current: 10mA\u003cbr\u003e6. Working temperature: -20~70 degrees Celsius\u003cbr\u003e\u003cbr\u003e","brand":"GadgetHQ","offers":[{"title":"Default Title","offer_id":52635456471387,"sku":"EDA008115901A","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/1041\/7755\/files\/EDA008115901A.jpg?v=1774053950"}],"url":"https:\/\/www.gadgethq.co\/collections\/arduino-scm-supplies-boards-shields.oembed","provider":"GadgetHQ","version":"1.0","type":"link"}