I tried it out now, and it seems to work just fine with a 32Ohm resistor in series with the 3:rd pin down to gnd
So at the moment the connection is as follows:
5 v (via 5v output on seeduino) to pin 1 (closest to the thing sticking out )
Seeduino AD pin 0 to Sensor pin 2 (middle) put a 10k to GND on this too.
GND to 32ohm to pin 3
Gives me values of 10-200 when using a rag of crappy whiskey (vat 69)
Hope this helps anyone that has bought one.
Yes, it gets hot (it’s a heater in it)
My voltage over pin 1 to pin 3: 0.88v (might differ on your since both resistors and sensor isn’t too precise made)
Change AREF to 0.88/0.90, better accuracy, though the sensor seem to be quite sensitive giving a lot of noise, probably fixed with a nozzle and some averaging.
Make a nozzle, since it will go haywire in a room with fumes.
Figure out how to take precise measurements, i’m guessing that blowing harder will give a different result.
real schematic will come upon request.