-
hi, sometimes (like 10% chance) i'm receiving zeros from `getCO2` after following init process:
```cpp
void init_mhz() {
mhz_serial.begin(MHZ_BAUDRATE);
mhz.begin(mhz_serial);
mhz.setFi…
-
I would like to have support for the MH-Z19 device/plugin.
It allows readout of CO2, so you can build an indoor CO2 metering station :)
https://www.letscontrolit.com/wiki/index.php?title=%22CO2_…
-
when attempting to use the --serial_device parameter it always returns an error.
sorry I don't have the exact error as I changed the code on my pi and didn't get any screenshots or the exact error. I…
-
On my Raspberry 3B+ I get
**None** from `mh_z19.read()` and **9** from `mhz_19.read_all()`
I am using Python3.6
The serial is `/dev/serial1 -> ttyAMA0`
The mh_z19 is connected RxD TxD and TxD …
-
Hey,
thank your for your nice Library and your Documentation about it. I bought this Sensor and I want to use it only indoors and my Question is about the Calibration. I thought that I need to tur…
-
## The problem
Short version: There are a number of integrations which aren't tied to one company and/or don't have a recognizable logo.
Rather than throwing ideas into bunch of different issu…
mrand updated
3 years ago
-
**Operating environment/Installation (Hass.io/Docker/pip/etc.):**
pip
**ESP (ESP32/ESP8266, Board/Sonoff):**
esp32
**Affected component:**
[MH-Z19](https://esphome.io/components/senso…
-
in README.md file and in the section about CALIBRATION you have several links to the datasheet available on the sensor manufacture website. This datasheet you currently link to is version 1.0 publishe…
-
Hi,
I am using MH-Z19B CO2-sensor. I bought a second one for my bedroom and i see that it is a bit off from the one i was already using. I would like to calibrate it to 400 ppm. In the sensor code …
-
### Summary of Problem
I use the code in an ordinary js-file. There it runs as intended. When integrating the code into a Node-RED node, code fails. Writing data out of node red works.
(Please…