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2 thoughts on “Thingspeak charts from autonomous ESP32”
Hi, i came across your site from your channel on thingspeak. because i have a channel monitoring my own board. https://thingspeak.com/channels/676692
i have a question. my board is an esp8266 my reading are wrong. what is the max value of the adc? (v in is 1v or 3.3v? and the read value is 512, 1024 or what?)
by the way, you have a typo in the url of your site on thingspeak https://www.paMgodream.es/
thanks a lot for your comment and notifying me of the typo. 🙂
I am not sure I am understanding your question very well. As I see in your charts (I guess you are talking about the field 4 chart) the values you are reading are high. As far as I know, ESP8266 ADC reads values from 0 to 1.0 Volts.
In my case, I am using an ESP32. It reads volts from 0 to 3.3, giving you a value from 0 to 4096. Ion-Li batteries reach up to 4.2Volts that exceeds the maximum value that the ADC can read, so I had to use a voltage divider.
Si lo prefieres, por comodidad de los dos podemos hablar en castellano, que no se qué hacen un uruguayo y un español hablando en inglés… 😉