Last Updated on 6 November 2018 by Suffocation
wrote on 16 March 2026
at
09:54
Hello Stefan, thank you first of all for this nice little board with the good instructions. Unfortunately, I got carried away and desoldered the MQ-2 sensors and repositioned them. I haven't managed to get the sensors working again. This is because the wires are not making contact with the fine traces at the former pin holes of the MQ-2.
Is it possible for you to tell me the contact points of the sensor so that I can solder the wires directly to the components?
Best regards from Rüdiger
Admin Reply by: Suffocation
Hello Rüdiger,
Sorry for the late reply. If you post this to the contribution, I usually see it faster as not many people visit my guestbook otherwise 😉. I must clarify one thing, the board is not mine, I only got it and tested it, so the thanks belong to someone else. hopefully it worked ;).
In file lib/App/DeviceConfig.hpp
Current: #define MQ2_PIN A0
defined, so A0 should be your pin.
https://github.com/search?q=repo%3Athorsten-l%2FESP8266-AZ-Envy%20MQ2_PIN&type=code
| Date | Change | Author |
|---|---|---|
| 06.11.2018 | Post created | Suffocation |