Given the product page : Data is read over I2C, so it works very nicely with just about any microcontroller or microcomputer. We’ve written both Arduino and Python/CircuitPython code so you can get started in a jiffy.
Does anyone has a good documentation to follow to make this connection successful?
So as the product page says, it uses I2C which is a very common data bus. It is made of four wires: Ground, Power, Serial Data (often SDA) and Serial Clock (SCL).
Probably the quickest way to do this is to use a Sparkfun Qwiic shim, which you slip onto the Zero’s GPIO pins underneath the Enviro+. Then you can connect the two using a Qwiic/Stemma QT cable.
Alternatively, both the SCD-30 and Enviro+ have pin holes for I2C connectors, so you could wire them to each other directly, but that really depends on how good your soldering is.
A final suggestion: the SCD-40 (or the version with the wider sensing range, the SCD-41) is also a very good direct CO2 sensor, its a fair bit smaller, it also works over I2C, and is a little cheaper. It might be worth considering as well.
EDIT: Well it seems that the SCD-40/41 can be cheaper depending on where you buy it. But it’s still just as good and smaller!
Besides this, Adafruit provides drivers for their product, usually wrapped CircuitPython drivers in combination with Blinka. Works very well, btw.
I would also suggest the SCD-40. On paper, the SCD-30 has a higher precision, but I doubt that the difference between ± 50ppm and ± 30ppm is really relevant unless you are doing some highly scientific experiments in controlled environments. I have the SCD-40 from M5Stack, which has beside price the advantage that it has a housing and can be connected with a simple Grove-adapter cable (Grove to DuPont or Grove to Stemma/Qt).
Definitely +1 for the SCD4x series instead, better size age and price. Get the SCD41/42 for a bit more precision / compatibility with air quality standards, but pretty much the same as SCD40.
Thanks for the input everyone, I’m sure connection will happen flawlessly given your comments! I am getting a SCD41 soon. Also, apparently SCD42 is discontinued.