Hi,
i have just got the outdoor monitor working. At present it is indoors and I have stopped it connecting to Airgradient. I have added some code to allow it to communicate with home assistant via MQTT and this seems to be working well.
Some comments:
good points - The plastic mouldings are very good and fit well , the only problem ( on my uncalibrated Ender 3) was that the slot for the PCB was too small and needed a bit of filling to make it fit.
Other points.
The def for one of the serial ports was SoftwareSerial soft2(D3, D7); and should be SoftwareSerial soft2(D3, D4);
At first only 1 Chanel would work. I traced this to a broken ground track to the soldered connection pads for the detector. Unfortunately I ordered the pcbs before any improvements were made and hope this will not be an on going problem.
Overall I am pleased with the unit and will finalise its connection when I have sorted out an outdoor power supply
Best regards
Tim