pH analog sensor and Core2

rogidev

Hi,

I've bought this sensor https://botland.store/gravity-temperature-sensors/15094-gravity-ph-analog-sensormeter-v2-dfrobot-sen0161-v2-6959420914234.html which unfortuanally doesn't work well with ESP32 analog input.

Is there any workaround? Maybe some external analog input or a module from M5Stack that I can connect?

teastain

@rogidev https://docs.m5stack.com/en/unit/Unit-ADC_V1.1

ajb2k3

What do you mean "which unfortuanally doesn't work well with ESP32 analog input." ?

rogidev

@teastain thank you
I'll try this one

rogidev

@ajb2k3 seller's page on GitHub says ESP32 series works wrong.
https://github.com/DFRobot/DFRobot_PH
I can confirm it because analogRead() returns some unreal value of voltage: 8461.9