Circuit Lake » Display

Aurora RGB LED Art

admin — Thu, 27 Oct 2011 01:16:08 +0000

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.The project uses an idea of combining [...]

USB Interface for Parallel LCD

admin — Thu, 21 Jul 2011 01:37:59 +0000

The project shows you how to add a USB interface to a standard HD44780 compatible LCD and emulates the CrystalFontz serial protocol over a virtual COM port created by the FTDI chip. This enables you to use already existing software to speak to the LCD, for example the popular program LCD Smartie. The circuit uses [...]

Related project:

LCD Smartie, Windows Software for LCD

admin — Tue, 19 Jul 2011 03:36:59 +0000

LCD Smartie is software for Windows that you can use to show lots of different types of information on your LCD/VFD. It supports LCD/VFD’s with a Hitachi HD44780 Controller, a Matrix Orbital Serial/USB LCD, Crystalfontz Serial/USB LCD, Seetron Serial LCD/VFD, IRTrans driven VFDs, SoundGraph iMON VFDs, Futaba VFDs, Pertelian LCDs, VL System L.I.S VFDs, IEE [...]

Related project:

GPS Compass

admin — Wed, 13 Jul 2011 00:44:46 +0000

This PIC16F628-based compass uses NMEA-0183 data from a GPS receiver. The direction indicator displayed on eight-point LED with radial pattern every 45°. Although the GPS provides accuracy to a tenth of a degree, that kind of accuracy is not really necessary in the automotive use for which project is designed.To use the compass, user need [...]

AVR Based Basic Calculator

admin — Mon, 09 May 2011 01:46:16 +0000

The purpose of the project is to build a basic calculator based on microcontroller ATMEGA32. It uses 4×4 matrix keyboard as input device with a 74C922 decoder. This decoder generates an interrupt through External Interrupt INT0 every time a key is pressed. The result of calculation displayed on 16×2 LCD.MCU firmware is written in C [...]

USB Website Hit Counter

admin — Fri, 06 May 2011 21:33:46 +0000

The project purpose is to build an AVR-based website total page hits counter and display it on 7-segments display instead of using only general scripts such as PHP, Java, CGI etc. The counter project consists of three main parts. First, PHP hit counter script run on website. This script will count the number of times [...]

AVR Based VGA Controller

admin — Sat, 09 Apr 2011 19:08:38 +0000

This AVR ATmega128-based VGA controller allows you to visualize images, text, lines and single pixel, on your pc monitor with a 640 x 480 pixels resolution, 64 colors, 60 Hz through USB-serial commands. Besides MCU, it uses FPGA Cyclone with a clock of 27.175 MHz to produce the synchronism signals for the video-vga and the [...]