A0 connected to 5V?
Opened this issue · 1 comments
jpedrodias commented
The A0 was a 3.3V limit. Why is it connected to 5V? What is the 200k resistor doing there?
bandaangosta commented
Came here with the same question, but moved on since there was no answer. For future reference, I came back with an answer. Wemos board already has a voltage divider in A0 pin. So, connecting a 200 kohm from A0 to a source makes it suitable for reading roughly 5V and below inputs. See https://forum.arduino.cc/index.php?topic=649032.0