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This is the circuit I'm using to measure Frequency of mains , it's as simple as it can be but with ESP32 , for some reason .. I'm getting inconsistent data . This same circuit works perfectly with ...
[Scott] built this frequency counter using less than $10 in parts. It’s set up to meter frequencies in megahertz which is fitting since he’s planning to use it with his radio hardware e… ...
Sound Alternator Circuit and Working Fig. 2 shows the circuit diagram of the sound alternator, which is built using the ESP32 board, BC547 transistor, two red LEDs, a speaker, and other components.
Build a Smart Home project to control lights and fans with voice commands using an ESP32 and Sinric Pro. Easily integrate with Google Assistant and Alexa using the code and circuit diagram provided in ...
The circuit diagram for interfacing DHT11 temperature and humidity sensor with ESP32 is given below. Interfacing the DHT11 sensor with ESP32 is very simple as it has only three pins.
In this project, we will create an IoT-based AC Energy Meter using the ESP32 microcontroller and the PZEM-004T module, a high-precision AC power monitoring solution.
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