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Weird incompatibility with SSD_1306 OLED Screen @ 128x64 resolution

Status: Open.

#58 In WifWaf/MH-Z19;

· mautas opened on Nov 7, 2025

[minor] warnning: variable 'eject' set but not used

Status: Open.

#57 In WifWaf/MH-Z19;

· hpsaturn opened on Jun 10, 2025

Incorrect PPM range with sensor

Status: Open.

#55 In WifWaf/MH-Z19;

· c10ned opened on Jul 18, 2023

Cannot connect the sensor properly

Status: Open.

#54 In WifWaf/MH-Z19;

· vinzenzwolf opened on Apr 28, 2023

Error Code 3

Status: Open.

#53 In WifWaf/MH-Z19;

· icsHaLl opened on Feb 14, 2023

Failed communication via UART (ESP32)

Status: Open.

#52 In WifWaf/MH-Z19;

· edomazzone opened on Jan 15, 2023

ERROR 3 after powercycle - firmware download blocks init

Status: Open.

#49 In WifWaf/MH-Z19;

· Knochi opened on Feb 27, 2022

Backup / Restore Firmware using ST-Link v2 and OpenOCD

Status: Open.

#47 In WifWaf/MH-Z19;

· stefan123t opened on Feb 16, 2022

Getting wrong temperature on MH-z19c

Status: Open.

#43 In WifWaf/MH-Z19;

· vignesh8458 opened on Oct 19, 2021

Reasoning behind sensor zero-calibration ?

Status: Open.

#39 In WifWaf/MH-Z19;

· etodorovich opened on Jun 28, 2021