ESP8266 Community Forum

I learned the hard way that the ADC on ESP has a max of 1V instead of 3.3V.
Many WTFs were uttered before I learned that. lol

You're probably right about WiFi affecting performance. We'll see...

hwiguna wrote:I learned the hard way that the ADC on ESP has a max of 1V instead of 3.3V.
Many WTFs were uttered before I learned that. lol

Dont understand that mate. Usually you put a voltage on an analog pin between Ground and chip max voltage . In this case that would be 3.3 V . Then you read that pin and divide the reading by 1023 to get a value of the voltage you are reading . How would it be limited to 1 Volt thanks?

The ESP8266 A>D is limited to 1volt internal vRef voltage not the DC operating voltage, anything above this damages A>D.

This is not your normal friendly A>D lol.

Yep I bet once WIFI is up the display does all sorts of random speeds lol.

Keep us posted

Dans

Although I didn't tried it myself, many places mentioned that it is limited to 1V. But you can add a voltage divider if needed.
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