Circuit Lake

Electronic Project and Circuit Collection


Lighthouse Model Controller

April 22, 2012 By: admin Category: Control, LED, Project, Renesas No Comments →

The presented project is a tiny controller for lighthouse based on R8C/13 microcontroller. The hardware design is very simple. The only external components other than resistors and capacitors are: LED used as a light source, CdS photoresistor used as ambient light level sensor, 74AC14 used as very low cost (false) RS232C driver and quartz oscillator […]

AVR LED Candle

February 29, 2012 By: admin Category: AVR, LED, Miscellaneous, Project No Comments →

This LED candle is built to mimic the look of a traditional candle without the dangers associated with an open flame. It uses high brightness LED and is controlled by ATtiny85. It could be useful as movie props where you cannot afford to have a candle go out during a take or in your home […]

Aurora RGB LED Art

October 27, 2011 By: admin Category: Display, LED, Miscellaneous, PIC, Project No Comments →

Aurora 9×18 is a beautiful firing sequence of 162 RGB-LEDs in a circular configuration. The color of each circle is controlled by a microcontroller (PIC24F08KA101) using a twisted form of PWM. The MCU only has one PWM module, yet Aurora is capable of 27 (9xR,G,B) independent brightness control.

Pocket-Sized LED Flashlight

February 01, 2011 By: admin Category: Analog, LED, Project No Comments →

This mini LED flashlight is very useful for emergency use. Since it size is small enough to put in your pocket, you can bring it anywhere. This portable LED flashlight is powered by only one AAA battery. To boosting input voltage (1.5V) up to operating voltage of a super high luminosity LEDs -blue, green or […]