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Use of audio amplifiers is increasing day by day. This project deals with the transmission of the audio signal wirelessly and amplification of the received signal using VTF-108 Bluetooth module and audio amplifier IC TA8210AH. Bluetooth module can connect to...
Here is a circuit meant for babies for generating various light patterns on eight LEDs. Lights pattern generator circuits available in the market are fitted with toys, and are used by babies for play and entertainment. These toys are...
Fastest finger first technique is used in quiz shows (with rapid fire rounds) to find the order in which participants press the buzzer (to give an answer to the question). This project is designed for four players. For real-time...
This project turns on and turns off a laser LED after every second. It can also monitor its own supply voltage level. The circuit can be extended for use as an audio-visual alarm system for security applications. Keyes KY-008 laser...
Monitoring circuits in battery chargers, water-level indicators, etc use LEDs to indicate the status of certain conditions. Presented here is a multiple status indicator circuit that uses a single RGB LED for seven different indications. Circuit and working for Multiple...