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by DwDckQo
Tue Feb 16, 2021 6:28 pm
Forum: ESP32 Arduino
Topic: ESP32 bad ADC1 readings
Replies: 0
Views: 1815

ESP32 bad ADC1 readings

Hello guys, i have esp32 dev kit and I need to read voltage from 4-20mA transducer. I made simple circuit with rail-to-rail op amp. Schematic: https://drive.google.com/file/d/15zgiigNN2KyboJaRtIMN9CWXAAJeXwUq/view?usp=sharing So, my measure voltage range is from 0.6V to 3.0V. When I connect transduc...