Frequency Counter of AVR with LCD Display

The frequency counter project operates with 40MHz while integrating an 8-digit LCD display.

AA Battery Charger via USB Connection

The project makes the USB port a convenient source of power for devices such as battery charger for a pair of AA Nickel Metal Hydride (NiMH) and Nickel Cadmium (NiCd) cells.

Regenerative FM Receiver Using One Transistor

The VHF super regenerative receiver has been trimmed down to a single transistor without compromising its tremendous sensitivity and selectivity while maintaining the same clear audio.

Music Equalizer Display Based on PIC18F452

The purpose of the project is to create a device that will take a standard headphoneaudio signal, interprets it, and outputs the voltage amplitude onto an LED bar which should change rapidly with the flow of music beat & rhythm.

OLED Analog Clock Face Based on ARM7

An organic LED display interface is demonstrated on this project with an ARM7 microcontroller displays and analog clock face on OLED low power screen containing an 18-bit color range.

Proximity Sensors Made from Infrared

The simple basic idea of building this proximity sensor project is to provide a detection range of 35cm which can be changed depending on the ambient light intensity.