SCD 41 CO2 sensor

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siquepuede
 
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SCD 41 CO2 sensor

Post by siquepuede »

Hello,

When I first purchased two SCD 41 from Adafruit I was able to get it up and running using the ExampleUsage on the Feather ESP32V2 with no problem. Now however when I try to upload the code to the other SCD41 w. ESP32V2 I get a compilation error:

exec: "/esptool.exe": file does not exist

Compilation error: exec: "/esptool.exe": file does not exist

This occurs even though I installed the SCD4x Adafruit library. Any help is appreciated as always!

thanks,

Andrew

p.s. I have the other ESP32v2 with the second SCD41 successfully connected via wippersnapper to the Adafruit IO

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siquepuede
 
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Re: SCD 41 CO2 sensor

Post by siquepuede »

Additional note: I just tried using the SCD41 with a 8266 NodeMCU and the code uploaded and worked fine.

Also can connect two of the same boards on wippersnapper using the adafruit IO? Is there a way to change the name so that they are distinguishable? sorry for the basic question - I am somewhat new to the IO world!
Andrew

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adafruit_support_mike
 
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Re: SCD 41 CO2 sensor

Post by adafruit_support_mike »

Check to make sure you have the latest version of the ESP32 Board Support Package. The toolset evolves over time, and it sounds like you may have code that's calling a piece that's no longer current.

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brubell
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Re: SCD 41 CO2 sensor

Post by brubell »

Also can connect two of the same boards on wippersnapper using the adafruit IO? Is there a way to change the name so that they are distinguishable? sorry for the basic question - I am somewhat new to the IO world!
Andrew
You can change the device's name. Go to the Device's page and click "Device Settings". From there, there is a form that allows you to change the device name.

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siquepuede
 
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Re: SCD 41 CO2 sensor

Post by siquepuede »

Thank you for your helpful response. I'll try your recommendation. And thanks for the answer to my other question about renaming board.
Just wanted to add that I used the CO2 sensor with my 8th grade science class today and they were able to see first hand the rapid rise of CO2 levels with candle burning under a jar (with SCD41 next to it) as well as evidence of their own CO2 exhaled. It is a nifty package and works very well with the ESP32 on WipperSnapper!
thanks for the helpful support!
Andrew

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brubell
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Re: SCD 41 CO2 sensor

Post by brubell »

Just wanted to add that I used the CO2 sensor with my 8th grade science class today and they were able to see first hand the rapid rise of CO2 levels with candle burning under a jar (with SCD41 next to it) as well as evidence of their own CO2 exhaled. It is a nifty package and works very well with the ESP32 on WipperSnapper!
thanks for the helpful support!
Yay - excellent!

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