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Remote Controlled LED using HC-05 Bluetooth, Arduino and Mobile Phone App
Arduino AND Bluetooth HC-05 Connecting easily
How to Configure HC-05 Bluetooth Module as Master and Slave via AT Command
Arduino and Matlab: let them talk using serial communication!
How to add Arduino Library in to Proteus 7 & 8
Light Spectrometer from a "battery powered" head inspection lamp
Assemble an Adafruit DS1307 Real Time Clock Kit
Prototype and configure your own Real Time Clock module for the Raspberry Pi ( Open Source Hardware and Software Configuration) )
Arduino Aquaponics: Real-Time-Clock Part I