A little metal cart equipped with two beefy motors, an Arduino Mega, a pair of motor controllers, and a HC-08 Bluetooth module so you can control it from your phone. How hard could it be ...

Using an Arduino Mega microcontroller ... reminders and playing music to controlling smart home devices. The Bluetooth module allows Twinky to connect to other devices, expanding its range ...

His build uses an Arduino Mega with a BlueSMiRF Silver Bluetooth board that actively ... Doors are unlocked directly through a 2-channel relay module, and an LED indicator inside the vehicle ...

Have an old USB keyboard you love, but wish was wireless? DIYer DastardlyLabs shows off how to make your own little adapter that’ll convert just about any old USB keyboard to Bluetooth.