Deba168's system uses two Arduinos, an RF transmitter, a motion sensor, and a few other parts to piece it all together. When the motion sensor detects movement, it buzzes the other Arduino.

An Arduino Pro Mini talks to a NRF24L01 which handles the wireless communication. At that point, it’s up to you – throw in as few or as many controls as you like.

Using a one-meter-by-one-centimeter copper cable, the Android app Tricorder, and a 120-ohm resistor, Joe made a coil from all the copper wire, which then connected to the arduino via the resistor ...

Arduino boards are largely based on Atmel’s MCUs, but mostly don’t have wireless due to their size and cost constraints. With devices becoming more connected, Atmel will be able to package ...

Long-range RC transmitter “I started using Bluetooth devices like the HC-05 modules, but I found that these sometimes randomly disconnected.

Benefits of Tarts Wireless Sensors: Wireless gateways for Arduino, Raspberry Pi and BeagleBone Black. Over 20 different types of wireless sensors. FCC, IC and CE certified wireless modules.