Nano Every: analogRead(...) gives only 1023

arduino / ArduinoCore-megaavr

Arduino Core for the ATMEGA4809 CPU

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Closed RudolfAtHome closed 4 years ago

RudolfAtHome commented 4 years ago

Symptoms with 2 boards:

analogRead(A0) or analogRead(A1) gives only 1023
used references: INTERNAL1V1 and INTERNAL2V5
Voltage at pin = 0.120V - controlled with a multimeter IDE 1.8.10 at Windows10 64 bit (runs well) Package megaavr\1.8.5

agdl commented 4 years ago

Tried with a voltage 1/2 divider on 3.3V (10k Resistors) INTERNAL2V5 returns 672 that is right (1.65V)

RudolfAtHome commented 4 years ago

Sorry - my mistake, if works. My voltage control wars wrong (5V <> AIN, correct is GND <> AIN).