Greetings,

We are encountering perplexing issues with our ESP32-based system, particularly concerning current and voltage detection. Despite extensive troubleshooting efforts, a subset of our produced PCBs exhibits erratic behavior in both current and voltage readings, posing challenges to the ...

Thank you for pointing that out. By "problematic behavior," I mean that the ADC readings from the ESP32wroom are either:

Non-responsive: The ADC seems to stop responding entirely, providing no readings or zeros regardless of the input.

These issues occur intermittently across the affected boards ...

We are monitoring the current of an industrial-grade 15HP induction motor via a relay-based zero-cross switching system. Current detection involves employing a CT (Current Transformer) linked to an op-amp circuit, with climbing diodes utilized for conditioning, ultimately feeding into the ADC pin of ...