![]() Connect ESP32 Arduino With a Samsung Smart Watch.In our guide to control AC appliances over the internet with ESP32, you will notice that directly connecting the relay with ESP32 will not properly work – it will Raspberry Pi, ESP32 etc things operate at 3.3v logic whereas, relay modules usually need near 5v TTL logic level. Simple Level Shifter With Transistors (3.3V-5V)Įarlier, we talked about the level shifter.Often, using a HTML page with JavaScript is practical than developing and Android App. Here is How to Develop WEB Applications with ESP32 and IBM Watson IoT. ![]()
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