I'm creating my home weather station using mongoose-os and I'm amazed of the OS. Previously I tried micro python but I had issues with async calls. Here everything works perfectly on timers.
I've prepared library for the PMS7003 which I would like to share. This is one of the most popular dust sensors which measures PM concentration (air pollution). Actually the code can work for the whole family of PMS sensors because the protocol is the same.
The library code is placed at: https://github.com/adamniedzwiedz/pms7003-mongoose-os-lib
Also I have prepared example of usage: https://github.com/adamniedzwiedz/pms7003-mongoose-example