PmodAQS on Raspberry Pi4

[GiannisRambo]

Anybody get the PmodAQS working on a Raspberry Pi 4 using GPIO pins?

I also have a PmodHYGRO, and when I plug that in I am able to read it using Python SMBus, but when I swap it out for the PmodAQS, I do not even see it when running 'sudo i2cdetect -y 1'.

I also own an Arty Artix A-7 100 board, and I am able to read the same PmodAQS board from an FPGA/Microblaze application.

Anyway, was wondering if anybody got this working, and if not, is there any troubleshooting advice anybody can give me?

Link to Official home for the PmodAQS

https://digilent.com/reference/pmod/pmodaqs/start

Link to Sensor documentation:

https://www.sciosense.com/wp-content/uploads/2020/01/SC-001232-DS-2-CCS811B-Datasheet-Revision-2.pdf

[GiannisRambo]

After doing some more research, I believe that the issue is related to the Raspberry Pi 4's processor not supporting clock stretching.

And using the recommended solution of a software-based I2C did not work for me, and I don't have the time to research this further... (I don't really need the AQS for my hobby project!)

I have more links I can dig up, but give me time...