The soil moisture sensor module , built around the LM393 comparator, gives an active-low (L) level output when the soil is dry (determined by a pre-setted threshold value). This digital output (wet ...

The Pressure Sensor Module incorporates a material called Velostat with the Arduino. This material adds more resistance when more pressure is applied to the material. This module also uses the RGB LED ...

At one end is an LED and at the other the LDR, and when attached to a glove it provides a finger sensor without the fuss. ... and with a simple divider circuit a voltage can be read by an Arduino.

Try “Arduino in 555 timer form-factor” and you have an article on using DIP-8 AVRs. Piunora opens up both the 3v3 on 0.1″ pitch and USB world of MCUs or a non-CM pi, and PCIe from the ...