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#315 How to use Voltage Supervisors to protect ESP32, Raspberry Pi, and Batteries

#321 7 Sensors tested: Measuring Current with Microcontrollers (Arduino, ESP32, ESP8266)

433 How Transistor Testers Work and How to Use them?

#311 All Transistors Faked on AliExpress?

#359 How to properly use a NanoVNA V2 Vector Network Analyzer & Smith Chart (Tutorial)

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#285 ESP32 Cameras: Comparison and Test (OV2640) and I2S MEMS microphone test

#347 Measuring Mains Voltage, Current, and Power for Home Automation

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#260 Most used tools, tips and tricks to spend your money wisely

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