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The ESP32 that I went for is specifically the ESP32-DevKitC, which is easy to find, cheap, and compatible with most things you'll throw at it. It supports Wi-Fi and Bluetooth, with a notable aspect of ...
In this Elektor webinar about IoT for Vehicles and Sensors, our engineer Saad Imtiaz presents a combination of vehicle diagnostics and wireless IoT ...
The audio component centers around the SS8550 PNP transistor (Q1) which serves as a driver for the passive buzzer (BZ1). This ...