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12 months ago This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
The problem
Ive seen some strange behavior while calibrating this sensor in esphome. Every time when I calibrate the sensor the sensor gets less sensitive. When doing a hardware calibration by grounding the HD pin the sensor resets to the sensitivity of other comparable sensors like the senseair s8. Could it be something in the code that is causing this?
Which version of ESPHome has the issue?
2023.2.4
What type of installation are you using?
Home Assistant Add-on
Which version of Home Assistant has the issue?
Multiple but most certainly the latest
What platform are you using?
ESP32
Board
Doit devkit v1
Component causing the issue
MH-Z19b and c variant
Example YAML snippet
No response
Anything in the logs that might be useful for us?
No response
Additional information
Both MH-Z19C are calibrated with the HD pin set to ground for 30 seconds. The MH-Z19B is calibrated by software. However when doing the software calibration with the C sensors same happens.