MQGasSensors. Using the MQ-2, MQ-3, MQ-4, MQ-5, MQ-6, MQ-7, etc. gas sensors. Navigation (Photo by Krodal, Public Domain) Introduction The MQ series of gas sensors use a small heater inside with an electro-chemical sensor. They are sensitive for a range of gasses and are used indoors at room temperature. PCB making guide. Arduino and the Raspberry Pi. I got a PI!
So I got a raspberry pi. It took almost 10 weeks to arrive, but it was definitely worth the wait. For those who don’t know, the Raspberry Pi is a cheap $35 computer that includes processor, memory, and a sd card slot for the hard drive. It also has a few hardware pins that can be used to drive external devices. Now to interface with a micro-controller… The MagPi.