![]() PinMode(BUTTON_PIN, INPUT_PULLUP) // set arduino pin to input pull-up mode Int currentButtonState // the current state of button ![]() Int lastButtonState // the previous state of button Int relayState = LOW // the current state of relay Arduino Code – Button Toggles Relay Without Debouncing const int BUTTON_PIN = 7 // Arduino pin connected to button's pinĬonst int RELAY_PIN = 3 // Arduino pin connected to relay's pin Now copy the following code and upload it to Arduino IDE Software. Here is a simple step-by-step guide on “ How to Add Libraries in Arduino IDE“. Installing Librariesīefore you start uploading a code, download and unzip the following libraries at /Progam Files(x86)/Arduino/Libraries (default), in order to use the sensor with the Arduino board. Here is a simple step-by-step guide on “ How to install Arduino IDE“. Make connections according to the circuit diagram given below.įirst, you need to install Arduino IDE Software from its official website Arduino.
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