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Relay module 5V - 2 channels for Raspberry PI, Arduino, PIC,AVR
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Arduino Uno Rev3 — Arduino Online Shop
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DIY Arduino Power Supply Shield with 3.3v, 5v and 12v Output Options
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3 Ways to Power Arduino - Programming Electronics Academy
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Android Basics and User Interfaces
L1: Turning on an LED - Physical Computing
3 Channel DC 3.3V 5V Relay Module Relay Expansion Board with Optocoupler Insulation for Arduino
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![Adafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz [STEMMA QT / Qwiic] : ID 5597 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/5597-06.jpg "Adafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz [STEMMA QT / Qwiic] : ID 5597 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits")