![]() ![]() In NO mode, the circuit is always broken unless you send a HIGH signal to the relay through Arduino. It works in two modes, Normally Open (NO) and Normally Closed (NC). TSOP SensorĪ relay module is a switching device. Its output is directly used by Arduino or any other microcontroller board. It consists of a photodetector that detects the signal and then demodulates it. TSOP 1738 is an IR module for Remote Controles. If you want to control more than 13 devices, use Arduino Mega. It has 13 digital I/O pins which mean that we can operate 13 different devices. It requires a C Code that tells the board what tasks to perform and how. Now as we know what components we are going to use, let us study them briefly to make a better understanding of how our circuit works.Īrduino Nano is a microcontroller board that carries out various operations in different circuits.
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