could i have that library for esp32 wroom doit dev kit If you think about the shcematic I created it with the EasyEDA online sketching tool. The library is the EasyEDA lib and I looked for the "nodemcu-32s" searching phrase. Then there is a Ai-Thinker-NodeMCU-32SLUA. For the MQ135 I have searched f...

Yes, of course. Here is the schematic.



If I change the MQ135 module to a LED it can be blinked - how the software should work.

If I connect the MQ135 without the MOSFET, directly to 3.3v, GND and GPIO32; it works.

I looked through all the forums, relevant pages, youtube videos but did not find a solution to my problem. I have a NodeMCU 32-S development board connected with a Waveshare 9528 (MQ135) gas sensor module. I created the software codes in Arduino IDE and it is working perfectly since I'm a developer ...