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 4

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 ...

How to flash the KK 2.0 flying board using an Arduino 54

How to flash the KK 2.0 flying board using an Arduino
I struggled many hours to figure out how to flash the KK 2.0 flying board using an Arduino Uno. I finally figured it out and thought I’d share with all of you. I assume you know how to upload sketches to your Arduino. Thanks to FakuFaku¬†for the final helping hand Prerequisites Installed Arduino IDE 1.0.3 ...

Understanding Adafruit GPS location data 13

This tutorial strictly looks at understanding the latitude and longitude coordinates that are output by the Adafruit 66 Channel MTK3339 GPS Breakout Board V3. There is a good GPS tutorial offered by Adafruit to get you connected and up and running to the stage we can start talking about output processing. The Adafruit GPS location ...

Using an 74HC595 Shift Register from STMicroelectronics 1

Using an 74HC595 Shift Register from STMicroelectronics
This tutorial is a quick tutorial on how to use a 74HC595 shift register from STMicroelectronics. You can find the datasheet here. After this tutorial, you will be able to use any 74HC595 shift register, and you will have a functional 4 bits (you can extend up to 8) counter counting from 0 to 15. ...

Standalone: Sharp Dust Sensor 23

Standalone: Sharp Dust Sensor
We based our work on the excellent post over here¬†but 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 ...