Circuit Lake

The purpose of the high altitude rocket telemetry payload was to design and develop a flexible flight computer to be flown onboard reusable mid and high powered model rockets. Since these designs are to be flown on relatively small rockets, size and weight were of paramount importance to the payload developed. At the same [...]

This battery charger built using IC MAX713, a NiCad battery charger IC from Maxim. It will control the fast charge time and monitor the cell voltage. The project can charges a battery approximately 80% charge in 22 minutes at a current of 2.4 Amps. Once the fast charging has ended, it trickle charges the [...]

This PIC18F1320-based mood lamp project contains of 3 Luxeon Star LED lights, red, green and blue. Each light uses around 1 Watt maximum. It typically consumes 40-60 times less electricity than a standard incandescent light bulb, It’s very efficient in energy use.

This PIC16F876A-based accu cycler project allow you to charge and discharge NiCd and NiMH accumulators for R/C modelers and others. It has performance close to commercial products in the market. The ‘intelligent’ part of the system can communicates with PC using serial port providing additional process visualization.

The Hibox is High DC Power Meter based on the Atmel Atmega16 microcontroller. This equipment is capable to measure DC voltage up to 40V, currents up to 200A (600A with special sensor) and shows all values on 2×16 characters display. It was developed for enhanced measurements on new Lion/Lipol batteries which are widely used in [...]

The project is an electronic version of an Etch-A-Sketch toy for kids. It can electronically emulate every function of the original. The system use Hyundai HG225504 LCD as screen which displays 256 pixels wide and 128 pixels high. Instead of a complex mechanical rail and pulley system to control the X and Y movement, Etch-A(vr)-Sketch [...]

This AVR Atmega16-based rocket controller is designed to be used in water rockets (or any other type of rocket for that matter). The rocket controller allows the rocket’s performance to be logged (altitude, accelerations), and provides control of the parachute deployment system. Altitude is measured using a pressure sensor device. While acceleration is measured using [...]