ESP8266 Community Forum

- Sun Jan 11, 2015 6:03 am #6978 You will need the new ESP-07 with 16 pins - it has a pin marked ADC.

I will try it out later today and post results back here.

- Tue Jan 13, 2015 2:53 pm #7219 I do have 3 of them. Two with the cermic antenan and a board antenna. All of them have the extra adc pin and gpio 5 and 4

- Wed Jan 14, 2015 4:46 am #7259 I just tried the ADC pin that's broken out on my olimex dev board - it works fine - reading upto 1024 (10 bits) for 1volt.

Using a cheapy multimeter I verified that when I adjusted a potentiometer to give as close to 0.5v as I could manage - I got a reading of 516 from the ADC. So hardly a metrology assessment but for a battery level or other non-critical measurement functions it will do nicely.

- Wed Jan 14, 2015 6:18 am #7267 LS,
Is this ADC on esp-07 or esp-12 still bothered by wifi transmitting/receiving or can it be used for continuous measurements ?
Herman