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This item focuses on building a support package for the MH-Z19 CO2 sensor using PWM protocol.
Testing w/ this [PWM Async library](https://registry.platformio.org/libraries/strange-v/MHZ19/examples/pw…
mbz4 updated
2 months ago
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Hello Damien,
I tried your softuart with two (one at a time) MH-Z19 Co2 sensor [https://www.winsen-sensor.com/d/files/infrared-gas-sensor/ndir-co2-sensor/mh-z19b-co2-manual(ver1_6).pdf](url). _Doesn'…
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Hi.
MH-Z19B and MH-Z1C CO2 sensor has, for example, option to turn on/off auto calibration.
Would be great to add it to pmsensor/co2sensor.py.
[mh-z19b-co2-ver1_0.pdf](https://github.com/open-homea…
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CO2センサーをMH-Z19Bから S-300に変更します
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tested this library with a MH-Z14A module.
comment about how to change from MZ-H19B to MH-Z14A module is missing.
delays hided away in a library are bad coding practice!!
To the author: If yo…
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This is related to https://forum.radicaldiy.com/t/mh-z19b-not-work-with-mycodo-python-but-works-with/1563 which was posted on the forum.
**Mycodo Version**: 8.15.9
**OS**: Linux raspberrypi 6.1.2…
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I used an Arduino Micro and just used your example code and connected the sensor like this:
- 5V (Arduino) to Vin (MH-Z19B)
- GND to GND
- Rx (Arduino) to Tx (MH-Z19B)
- Tx (Arduino) to Rx (MH-z…
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Hi,
I have a Nilan 300 Comfort Top and will give your sketch a try as soon as I receive my RS485 to TTL converter part.
However, I would like to also add a CO2 sensor (MH-Z19B) as the Nilan Optio…
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Hello
I use esp32 UART to communication with MH-Z19 MH-Z19C
than, I tried the example ErrorCodes and I got message
Sent > DEC: 66 77 9 129 8 200 3 52 1 ERROR Code: 3
Failed to receive CO2 va…
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@WifWaf I am interested in downloading the firmware using a ST-Link v2.
I found the SWD ports on the schematics at https://revspace.nl/MH-Z19B
4. Firmware
MCU firmware can be easily dumped through …