I have some #Pimoroni #BreakoutGarden sockets that I'm wiring onto a #Tildagon #Hexpansion because I have a few breakouts I'd like to use.
#I2C pins are obvious, but the connector has an ambiguous additional pin that is different on every board.
I guess I'll wire each one to a separate Tildagon GPIO. Which kinda de-generalises having everything on one i2c bus. (some boards its an interrupt out, some its a trigger in, on many its unused)
What do their official #RaspberryPi boards do here?
I should open the window. My #DIY #COβ meter went full tilt.
(Source code and instructions at https://github.com/xtaran/co2-led-meter)
#CO2Meter #CO2Sensor #AirQuality #Pimoroni #RaspberryPiZero #RaspberryPi #Sensirion #BreakoutGarden
@fritzt: Actually I had something similar on my mind (using a LED matrix to display the PPM value), too, but never went that far as it seemed to extend complexity quite a bit. There are some #BreakoutGarden compatible LED matrix breakouts like e.g. https://shop.pimoroni.com/products/11x7-led-matrix-breakout (that's the one I planned to use) or https://shop.pimoroni.com/products/led-dot-matrix-breakout
Please also note that most Breakout Garden compatible displays need the #SPI variant of the Breakout Garden HATs while I used the #I2C-only variant.
Cc @arturo182
I wasn't satisfied with #Sensirion's #USB powered #CO2 traffic light due to its hardcoded thresholds, so I built my own using a #RaspberryPiZero with solderless #ZeroDongle, #I2C #BreakoutGarden Mini #pHAT, Sensirion #SCD41 COβ sensor breakout and the #Pimoroni #LEDShim. All parts available at https://shop.pimoroni.com except for the Pi which is sold out.
The code behind it is based on two library examples by @gadgetoid and available at https://github.com/xtaran/co2-led-meter under the #MITLicense.
Ben Clifford
Axel π΄π·π§πͺβ¨ | #WeAreNatenom
