Home Brew Temperature Sensor

Temperature Sensor Radio Shack sells a very small Thermistor (Cat. No. 271-110 for $1.99) that can…

Galvanic Skin Response Sensor (Smartphone Version)

Galvanic Skin Response GSR or Electrodermal Activity is the study of the change in human skin…

Lego Mindstorms Double Rotation Sensor

I will try to create a Double Rotation Sensor where I usually use one motor for…

Optical Flex Sensors Circuits

This worked, but if I recall correctly the resistance response wasn’t linear but the EZIO ADC,…

LPG Gas Sensor

Here is a sensor of liquefied petroleum gas, also called LPG, GPL, LP Gas, liquid petroleum…