I have an ESP-07 from which I am trying to read voltage on A0 (not from internal ADC).
I thought 1V would equal 1024 but actually I need to put between 1.13 to 1.17V to get 1024 (not sure why it fluctuates "so" much).
Is that expected?
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rudy wrote:Or an external A/D converter if I really need to measure a voltage.
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