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I recently ordered 3x MH-Z19 sensors from banggood. Because I wanted to construct 3 supplementary IOT CO2 sensors (refer to my project https://github.com/hixfield/HixCO2TemperatureIRBlaster). However,…
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```
byte mhzCmdCalibrateZero[9] = {0xFF,0x01,0x87,0x00,0x00,0x00,0x00,0x00,0x78};
byte mhzCmdABCEnable[9] = {0xFF,0x01,0x79,0xA0,0x00,0x00,0x00,0x00,0xE6};
byte mhzCmdABCDisable[9] = {0xFF,0x01,0x7…
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Hello WifWaf,
on https://revspace.nl/ there is a indicator how to change the cycle of MH-Z19b.
Default is 5 seconds which will also be responded by :
int MHZ19::getCycle()
{
/* check get Cyc…
SFeli updated
3 years ago
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https://github.com/crisap94/MHZ19/blob/7d3722823cda89d9d6471fb0336bffb4b075aa1b/examples/MHZ19_getppm/MHZ19_getppm.ino#L23
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恐らくだけどMH-Z19Bが5秒毎に値を更新する動作と、マイコンから値をリードするタイミングが被ると異常値が出るのではないか？という気がする
urib0 updated
3 years ago
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Hey,
I received my MH-Z19B and connected it to my raspberry.
I ran a `pip install mh-z19` and when I execute `python -m mh_z19 --all` I receive the following output:
`{"SS": 0, "UhUl": 0, "TT":…
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I would like to adjust the measurement range from 5000 to 2000.
quote:According to the MH-Z19B datasheet, you can configure the measurement range by putting the desired range in byte 3 and 4. However…
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urib0 updated
3 years ago
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version mega-20190116
After updating to mega-20190116 i have several different esp/types of nodes who stop sending the C02 values from the MHZ19 co2 sensor, wifi connection is still there, other s…
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Hi,
I have the mh-z19b. I have installed the library but I am not getting data.
I a…