DFRobot SHT10 humidy and temperature sensor

DFRobot SHT10 humidy and temperature sensor
As part of our dust and carbon monoxide (CO) air quality sensor we need to measure air humidity as it is necessary for the CO sensor. The humidity sensor requires temperature. This sensor is simple compared to the CO sensor but I did run into a few bumps along the way giving me incorrect readings ...

Parallax Carbon Monoxide Sensor on Fio 6

Parallax Carbon Monoxide Sensor on Fio
We’ve been struggling with connecting the Parallax Carbon Monoxide (CO) break-out board for a while now. We finally have it functioning properly and safely. We’ll cover initializing the sensor, circuit setup, configuring pulse width modulation, adding signal lights and voltage monitoring for shutting down the device in case the separated CO power supply drops below ...

Standalone: Sharp Dust Sensor 61

Standalone: Sharp Dust Sensor
We based our work on the excellent post over here┬ábut contrary to the author, we did not try out multiple sensors and we are using an Arduino Fio. In this tutorial, we’ll focus on how to get your Sharp Optical Dust Sensor to work and what to watch out for. In addition, we will try ...