Here is a simple general-purpose security alarm ... and hence the reed switch should be in “closed”state at standby mode. When reed switch is opened, pin 2 of Arduino goes high with the help of the ...

But not always, as these DIY magnetically captured toggle switches ... Each switch cost less than $20 to make, including the MOSFETs needed to drive the coils and the Arduino to provide the ...

The system here uses a cheap Arduino board, a few sensors, and a magnetic contact switch. It’s then hooked into the Adafruit IO and connected to IFTTT, so you can set up alerts in any way you like.

The Raspberry Pi is a credit card-sized computer capable of running full-fledged Linux distributions such as Raspberry Pi OS, ...

Arduinos are a godsend for the DIY/Tinkerer community, but there’s all sorts of stuff they just can’t do out of the box. Sure, you can add tons of functionality via strap-on boards called ...

LittleBits is basically an electronics toolkit that consists of small components – batteries, speakers, switches – which ... The Code Kit is an Arduino system in a box. It comes with a small ...