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. Node-red was used to ...

Code to control via network (via UDP protocol) a relay connected to an Arduino Uno, which mounts an ethernet shield. Here you can find the code and the connection scheme. **I tested the code with an ...

Radio Frequency Identification is widely used in contactless payment cards, National Highway Tollgate systems, and in security passes. By integrating an RFID reader with an Arduino, you will be able ...