Circuit Lake

The purpose of the project is to build uncomplicated voice recognition system based on M32C/84 microcontroller. The main part consists of telephone, some amplifiers, and development board.

The project used to operational amplifiers in the analog part, the first one, provide amplification to the signal of 220mV p-p generated by signal transducer (a microphone electret) [...]

The goal of project is to helps people develop the musical skills of perfect pitch and relative pitch. Push buttons allow the user to navigate a graphical user interface (GUI) on a liquid crystal display (LCD). In perfect pitch training mode, a note is played and the user tries to identify the note on [...]

The purpose of this project is to build a simple Theremin that can play the base notes (no sharps or flats) from one octave to another, specifically C4 to C5. Instead of using antennas, it uses infrared proximity to sense the position. The device will produce a specific pitch after IR proximity sensor detects the [...]

The Arduino Drum Machine is MIDI groove-box features 14-track Drum-Machine Step Sequencer with 2 accent tracks and 32 steps. The project built based on Arduino and wusik software. It’s like the classic Roland TR707 but with some twists, as it actually has 32 x 1/32 or 32 x 1/64 steps. This Drum-Machine Step Sequencer project [...]