1 x L293D motor driver; 1 x HC-05 Bluetooth module; 1 x 16MHz Crystal ; ... L293D Motor Controller IC. The purpose of using this IC is to control the direction for the motor and also the speed of ...

Tinkernut shows you how to make use of it by turning it into a smartwatch with an Arduino brain. Using a Nokia 1100, Tinkernut walks you through pulling apart the old phone, connecting it to the ...