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Does ADC module in NodeMCU work properly ?

PostPosted: Wed Mar 15, 2017 7:37 am
by Huynh Huu Hieu
In my smarthome project, ADC does an important role for reading load current value. But ESP8266's ADC functions badly.
Image
I hope it would form a proper sine wave, but not as I expect. Do I need use a external ADC chip for instead ?