Circuit Lake

To get non-standard resistor value we can use parallel or series resistor combination. You can do quick calculation for R series but, sometimes, it's hard to get good resistance combination in parallel resistor to get R value that we need. Thanks to Claudio Girardi who has built Resistor Series-Parallel Calculator. It will help you find best resistor combination / match with easy. Just fill the resistor value that you need then the software will calculate the best resistor combination for the E12 (10%), E24 (5%) and E96 (1%) series....

COLT45 is a small multi-purpose device intended for the Amateur Radio operator, short wave listener, or other experimenters. Functions include a versatile frequency marker generator, a Morse code keyer, and a Morse code beacon generator with room for more functionality.The Colt45 uses an 8-pin Atmel AVR ATtiny45 microcontroller. To produce these precise low frequency square waves, an inexpensive and readily available 4 MHz crystal is used as the clock oscillator and several different program loops of varying (but specific) lengths are used to toggle an output pin at the frequency ...

This low-cost ATmega32-based balancing scooter can carry 90 kg at a speed of 15 km per hour over a distance of 10 km. The project uses "dynamic stabilization" for control. The project is equipped with a Gyro (Sensor for the angle rate), an acceleration Sensor ADXL311, a microprocessor AtMega32 and high power electric motors together to stabilize the balance. Forward and regression is reached by leaning forward and leaning back. A rocker that is placed at the upper end of the stick generates the Signal for the left right control."After ...

This project is built to controls a Neonatal Artificial Bubble (BAN, Burbuja Artificial Neonatal). The real-time embedded system software can simultaneously control all of the environmental variables such as temperature, relative humidity, and oxygen. The system is built around microcontroller AVR AT90CAN128.The BAN is an alternative medical equipment in hospital to the traditional incubators. It able to cover the deficiencies such as bad distribution of the temperaturesinside the neonatal capsule, an inadequate ventilation, an inadequate oxygen administration, the presence of high noise, a easily contaminable atmosphere, a deficient relative humidity ...