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Contribute to himanshuSinghworkPort/INTERFACING_AC_DEVICES_RELAY_MODULE_THROUGH_ARDUINO_ development by creating an account on GitHub.
An Arduino nano and relay module with 4 relays (see picture above) was used to simulate and replace the guitar 3-step switch. The project for Arduino is in PlatformIoClamp15.
In order to use the ESP-01 Wi-Fi relay module, a programmer/programming adapter is required to program the ESP-01 module (see below). Also it is pretty easy to make your own programmer, or you can ...