In this tutorial, you will learn how to send WhatsApp messages directly from an Arduino UNO R4 WiFi using the CircuitDigest Cloud Whastapp API. Instead of using a GSM module, SIM card, or complex ...
Then you open up the Arduino Serial Monitor, type in LED, and watch it turn on! In the serial monitor, the console will tell you what the available commands are when you type anything in. If you type ...