No CO values returned on the SEN0466 CO sensor

userHead Avhoboken 2022-08-26 10:36:40 1401 Views3 Replies

Hi,

 

I have issues getting the CO values out of the SEN0466 sensor. I have created the exact test set-up (hardware, wiring and script) as described in the Wiki, using a DFRobot UNO R3 and the SEN0466 CO Sensor. It does return the temperature but CO value (AllDataAnalysis.gasconcentration) keeps showing 0.

It's now running for three hours but no change so I assume something is wrong.

 

Any suggestions?

 

ps. I also find the returned temperature about 2C higher than measured by other (DFRobot) sensors like the DHT20 and DHT22, even with Temp. compensation enabled (gas.setTempCompensation(gas.ON))

 

 

2023-06-08 05:40:59

I'm also seeing this symptom (0ppm + temperature too high by 5C) with my SEN0466.

Could you please describe your fix?

userHeadPic Bruce.McKenney
2022-08-28 02:12:33

solved, was misreading the values

userHeadPic Avhoboken
Neelamadhab Khaya wrote:

How did you solved this can you please help? I am still getting 0ppm using esp32 in tx,rx pin using i2c mode. Also i want in ugm/m3 instead of ppm.

2026-01-29 20:21:09
1 Replies