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Hello Team,
Is it possible to utilize ADC pins in an MCU as digital input pins?
If it's feasible, what additional considerations do I need to focus on when using ADC pins as digital input pins?
Hello Praveen,
It's possible to use the ADC pins as digital input pins, you will need to read the digital value and use a proper threshold (based on your reference voltage value and the digital conversion value) to determine if the ADC reading should be a 1 or a 0.
If it's feasible, what additional considerations do I need to focus on when using ADC pins as digital input pins?
The considerations I would make sure to observe are reducing sources of noise (there shouldn't be an extreme necessity for this, since converting to a digital value means you'll have some margin of error) and making sure to follow the Electrical Characteristics table in the datasheet regarding voltage levels for digital pins (see section 7.6):
