STC8 with PMS7003 and GPS
The collected info will send by uart to esp32, see more detail on here.
LCD display some info as follow
There also provide a stupid repl for debug usage.
Send M02 or M05 to show GPS original data, if you want to see parsed data please use lcd.
Send M03 to show pms7003 original data, M06 to show parsed data.
M01 will show your sent message twice, it is use to check working status.
M04 use to show data receive from esp32 .
M07 use to switch on lcd.
All the cmd send again will do opposite thing.