Dobrica Pavlinušić's random unstructured stuff
ZPH02-PM2.5: Revision 7
{file: ZPH02.pdf}
http://git.rot13.org/?p=air-quality;a=blob;f=zph02.pl;hb=HEAD ^ Technical Parameters Model ZPH02 Working voltage range 5 +/- 0.2 V (DC) Output way Rate of low level%(recommending 30s) Output signal voltage 5 +/- 0.2 V Detection ability smallest particles 1 μm diameter Warm-up time Working current Storage Humidity ≤1min(device warming-up time) ≤90mA ≤95%RH range Working ≤95%RH Temperature range Storage Working -30 deg. C~50 deg. C 0�C~50�C Size 59.5�44.5�20mm(L�W�H) Physical interface EH2.54-5P ^ pinout | PIN No. | PMW mode | UART mode | | PIN1 | GND | GND | | PIN2 | NC | TXD | | PIN3 | VCC | VCC | | PIN4 | PWM | NC | | PIN5 | NC | Connects to GND | |