Circuit Lake

Morse Beacon is small transmitter that can send flight telemetry to earth from a small balloon or model plane like temperature and battery voltage, Call Sign identification and a sequence number for logging purposes. The design is made around an ATtiny13 microcontroller, a LM35 centigrade temperature sensor (or LM34 Fahrenheit), a RF module, and few discrete components. For simplicity, a UHF RF module, that can be FM modulated with digital signal, has been chosen and can be received with standard Hand Held transceivers. The antenna is a removable 1/4 wave whip ...

This ATmega32-based compact mail client project is easy-to-use and provides all the basic functionality you need to communicate via electronic mail. The project named as MiniEmail has a special stand-by mode in which it checks for new mail on a regular basis and alerts you in case new mail has arrived. Its intention is to keep you up-to-date about new e-mails, so that you will never again miss an urgent e-mail. You could, of course, just as well do a periodic mail check using a PC, but this wastes a ...

The dsPIC33FJ64GP206-based Ultimate Tremolo is a DSP-based guitar effect pedal that gives the user complete control of every parameter of the tremolo (or amplitude modulation) audio processing effect. This is accomplished by interfacing the pedal to a PC via a Microchip PIC18F4455 USB-enabled microcontroller and editing the settings through software rather than the normal convention of making rough adjustments to the effect with a few knobs located on the pedal. This Tremolo does, however, also have knobs than can edit the traditional tremolo parameters of Depth (amount of modulation amplitude) ...

Energy Analyzer project is M16C/62P microcontroller-based power and energy data logger with ability to read voltage and current RMS values, power factor, real power and energy, harmonic contents etc. Besides the basic measurements, the circuit is capable of signal acquiring to detailed analysis in time and frequency. It is possible to measure starting time of motors and electric components and to record electrical values over a long period of time. The main component in the project including a powerful integrated circuit to measure energy and power, the CS5460 from Cirrus ...

The project is a plug-in daughterboard that converts a stock AVR Butterfly demo board into a barometric altimeter with one-meter resolution named Monarch. The major enhancements from ATmega169-based system including barometric sensing of air pressure, 10–110 mbar absolute range; Barometric altimeter, 1 meter resolution, >16K meters max; Digital temperature sensing; R/C (radio control) servo pulse decoding; Software controlled On/Off output for flexible switching of external devices; External battery operation (support for up to two power sources); Low battery detection; Voltage measurements extended to 35VDC. The project, designed by Thomas Black, is ...

This 3-dimensional graphics display system which named as MaJaTron consists of 125 RGB LEDs arranged in a cube of 5x5x5 dimension. Each LED is a multicolor Red, Green and Blue LED and the control circuit of the system can individually control the intensity of each color, thereby, creating a full color, graphics system. Each LED is independently controllable. To control these 125 LEDs, a control circuit consisting of 13 AVR Microcontrollers ATMega32 is used. Each ATMega32 controls 10 LEDs. All the microcontrollers are networked together in a pseudo-RS232 network. This network ...

kaOS project is real-time, multithreaded, preemptive operating system for the Atmel Mega32 microcontroller. It can loads and executes programs from a Secure Digital or MMC card. The system waits for a card to be inserted and a reset button to be pressed, at which point a program is loaded from the card and executed. At any time, a new card with a new program can be inserted and run. Executing a new program doesn't require reprogramming the Atmel processor. The Operating System supports multiple threads, cross-thread messaging, dynamic memory allocation, ...