CO₂ Sensor

CO₂ sensor Forum Discussions

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Driver circuit of LED light source in CO2 sensor

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Hi, Could you please tell me whether the schematic diagram of the LED driver circuit on the sensor is public? If possible, could you provide it for ou... Show More

By weixiaohalou

Nov 9, 2022

217

CO₂ sensor

What is the cause of the occurrence of the noise on I2C line of the PAS ...

Solved

Hello, Please let me know the cause of the noise on the I2C line of the PAS CO2 sensor. The circuit is same of the datasheet V2.0 Fig 6. We use it as... Show More

By h_nakamura

Nov 8, 2022

276

CO₂ sensor

About PAS CO2 Sensor Error Checking

Solved

Hi everyone The I2C interface in the datasheet states "No CRC.". Does it not support CRC function? Is there any other way to check if the data sent fr... Show More

By YoJa_3107936

Sep 28, 2022

248

CO₂ sensor

About signal terminal processing when using I2C

Solved

Hi everyone For used the I2C communication, the 2 pin (RX) and 9 pin (PWM) set to OPEN is should be no problem? Thanks yang Show More

By YoJa_3107936

Sep 28, 2022

210

CO₂ sensor

About INT terminals

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Hi everyone

What is the purpose of INT on Datasheet p 11?

Thanks

Yang

By YoJa_3107936

Sep 28, 2022

204

CO₂ sensor

About PAS CO2 sensor reflow

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Hi everyone How many times is the reflow warranty for the PASCO2 sensor? If reflow causes or causes accuracy to drift, please let us know if there is ... Show More

By YoJa_3107936

Sep 28, 2022

219

CO₂ sensor

Response Time of PASCO2 sensor

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Hi everyone Could you tell us more about Response Time? Thanks Yang Show More

By YoJa_3107936

Sep 28, 2022

194

CO₂ sensor

How to use the XENSIV PAS CO2 Sensor with a Raspberry Pi?

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Hi there, we got some CO2-sensor-kits for our school (HTL) in Tirol, Austria. We usually work with raspberry pi's. I worked through all the suggested ... Show More

Hi there,

we got some CO2-sensor-kits for our school (HTL) in Tirol, Austria. We usually work with raspberry pi's. I worked through all the suggested materials and documentations but could not find any hint regarding the connection to a raspberry pi. The only clou seemed to be the GitHub-repository https://github.com/Infineon/AQM-RaspberryPi, which unfortunately is empty.

According to the documents I found (Infineon-programming_guide_PAS_CO2_evaluationkit-ApplicationNotes-v02_00-EN), it is possible to control the XENSIV PAS CO2 via I2C or UART. To my knowledge, I need another microcontroller for I2C. But the problem is that the 10 pins on the kit are not easy to connect (the same goes for UART). I also don't think that's the real idea, otherwise there wouldn't be a separate kit for the school with an additional USB Type-A port (see the image on the first page inImport.Configure.Flash.using.WICED-Studio.v6.4.pdf). The mentioned programming guide refers to the Sensor2Go Evaluation Kit, which obviously provides pins that are very easy to connect (not so with our school kit).

Instead, our "school kit" includes a USB Type-A and a micro-USB port. The micro USB port should be used to communicate with the PC (or Raspberry Pi?). Why then do we need the Type-A port, which is even missing from the Sensor2Go Evaluation Kit? Can I simply connect the "school kit" to the Raspi via USB and then communicate directly with it, e.g. with Python? If so, with what protocol? Is there a library for this?

Unfortunately, I could not download the GUI on my Macbook because it is apparently not available for macOS. Under the search term "XENSIV PAS CO2 Sensor2Go GUI" I could not find a corresponding entry in the Toolbox Launcher, so I could not test the sensor yet on my Macbook.
Instead I downloaded the "XENSIV PAS CO2 Sensor2Go GUI" on a Windows notebook and paired the device via bluetooth. But I could not find it within the software in the window with the title "Environmental Fusion GUI", I tried everything, that came into my mind.

I was able to successfully download, install and open the Android app. My smartphone could also connect to the sensor via Bluetooth, but no connection could be established inside the app. After touching the one and only button inside the app, the button changed to grey and after a few seconds it aborted without a comment.

I would be very pleased if you could give me some help in this regard. Do I need additional hardware? Can I establish a connection directly via USB or only via a wireless connection? Does the whole thing work with Raspberry Pi's at all? Thank you very much!

With kind regards,
Dominik

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By modo

Aug 29, 2022

497

CO₂ sensor

Seeking papers about sensors

Solved

Hi, could you please provide relevant papers about Infineon's CO2 sensor, or which academic website should I go to find, for example, this IEEE paper ... Show More

By weixiaohalou

Sep 6, 2022

256

CO₂ sensor

Adaptability of PAS CO2 for wearable products

Solved

Hi,When the PAS CO2 is built onto the wearable products* then the PAS CO2 is always affected of vibration and shock and can it measure the CO2 concent... Show More

By h_nakamura

Sep 5, 2022

307

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CO₂ sensor Forum Discussions

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