RANCANG BANGUN AUDIO AMPLIFIER STEREO KENDALI ANDROID (SUB: AMPLIFIER, MIKROKONTROLER)

An Audio Amplidier will amplify the input audio signal in the circuit, in order to make new innovation, the author add control application that controled by android application that connect by bluetooth module. Design of audio amplifier controlled by android is an audio amplifier design 150 Watt that will amplify the audio signal generated by android smartphone. This tool can be controlled using android smartphone application which have been built into it, this application can set ON/OFF control and volume control. The tool has HC-06 bluetooth device to receive commands that sent by android smartphone. Using mikrokontroler Atmega16 that sereves as a data processing unit to perform data processing in order to be able to tun the control logic for amplifier circuit. This audio amplifier tool is start working when android smartphone application send an ON/OFF or volume control command via bluetooth, this datas will be received by HC-06 Bluetooth device and will be translated by mikrokontroler Atmega16 which activate the relay circuit so that the voltage and current will be heading to the amplifier circuit, the output of audio which has been amplified on this amplifier circuit can be hear on the speaker output