This program tests commands from the Serial and Button to control 2 LED and a 5V Relay Module (jqc3f-5vdc-c). #include <Arduino.h> /* Commands a: change LED1 s: change LED2 r: change relay d: change ...

Adeept Ultimate Sensor Kit for Arduino UNO R3 V2. A kit for learnning Arduino with C programming and electronics knowledge. Download Click the green "Clone or download" button, then click "Download ...

VCC is the power supply pin of the soil moisture sensor that can be connected to 3.3V or 5V of the supply. But do note that the analog output will vary depending on the provided supply voltage. GND is ...