CO2 Sensor?

A project log for Smoker Controller

A platinum RTC temperature sensor used to keep track of a BBQ smoker's temperature.

John BaichtalJohn Baichtal 04/09/2018 at 18:285 Comments

I had the thought that, could a CO2 sensor--or more accurately a smog sensor--be somehow utilized to check the status of the smoke box? The PCB-mounted sensor, like the Adafruit component seen in the picture, might be too frail to get anywhere near the smoker, lest the solder melt.

Also, this is definitely a Version 2.0 feature... but it's something to think about. If the cookin' smoke is too thin, something might be wrong, and the system could send the chef a text.


TheBestJohn wrote 04/09/2018 at 19:05 point

I've thought about this too!!! I was thinking a laser diode and a protoresistor on the other side, flare ups could give false data but I think smoke coverage would affect resistance enough to be useful at least

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John Baichtal wrote 04/09/2018 at 19:07 point

I love the idea of a flare-up detector -- maybe just a light sensor?

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John Baichtal wrote 04/09/2018 at 19:08 point

A laser through the smokebox would work brilliantly, I bet. Thanks for the idea!

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TheBestJohn wrote 04/11/2018 at 17:19 point

For specifically detecting flare ups I would use a flame sensor. OH! That in tandem with the laser/photoresistor pair could reject false data from the smoke detector.

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John Baichtal wrote 04/11/2018 at 19:20 point

Love it! You ARE the best John!

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