Circuit Lake

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This four channel pulse width modulation (PWM) controller is built around Atmel ATMega16L. It has RS232 serial interface for computer control, four 10 bit analog inputs and a 12-button keypad interface. The controller also has four indicator outputs (which may be configured as general purpose outputs), an alphanumeric LCD interface (with backlight control), three [...]

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The AVR Ethernet I/O board with accompanying PC control software offers remote control of 4 relay activated devices and status monitoring of 4 opto-coupled inputs over the Internet. Remote control is accomplished using any web browser-abled computer, or by running the custom “Ethernet I/O Control Panel” Windows software on an Internet ready PC. Browser [...]

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If you want to build Light dimmer that can be controlled from many ways then check out this Network Light Dimmer. This AVR AtMega8-based light dimmer project has multiple control interfaces such an RS485 network, an infrared remote control, a proximity touch slider or touch sensor (Qprox QT401/QT110). Other features including Opto isolated and [...]

The PRO-I/O breadboard development system emulates various input and output devices typically used in today’s designs. It plugged into a breadboard along its top row of connectors and provided input stimulus and output display for the circuit under development. The project include switches, pushbuttons, a 2×16 character LCD display, LEDs and even a small serial [...]

The Expandable Serial Port Multiplexer project allows a single RS232 serial port to service multiple instruments requiring RS232 ports. Each port is configurable in terms of baud rate, parity, number of bits and number of stop. On the host side the serial streams could be multiplexed through the use of a Windows driver or [...]

This project enables you to drive two unipolar stepper motor or eight electric light bulb or DC motors. There are eight DC power switch you can open or close through PC parallel port. For safety reason, digital interface to PC uses optocouplers. You can connect up to six circuits to a single LPT, driving up [...]

This 2.4GHz Spectrum Analyzer project build based on Cypress CYWUSB6935 module. The project allows you to monitor the 2.4GHZ ISM band in your immediate vicinity. You can monitor what’s going on and figure out what channel to change your Wi-Fi network to in order for it to keep working when your neighbor rudely sets up [...]