Posted on 06 Jul 2008
The “Butterfly keyer” program converts the Butterfly demo board into an Iambic keyer which can decode and display the characters you send using the paddle. The Atmel AVR “Butterfly” is a credit card sized board which contains an AVR MEGA169 processor, a six character LCD display, a five way joystick navigation switch, a piezo speaker, a 3 volt lithium battery cell for power and a few other odds and ends.[more]
Posted on 01 Jun 2008
This is an AVR ATMEGA8 based development board. This board consists of necessary components such as a LCD display,LEDs, RS-232 port, push buttons, relays, switches etc. It is ideal as a board for development your AVR projects.[more]
Posted on 01 Jun 2008
The Network Time Protocol (NTP) has revolutionized the world. Suddenly one could have anywhere in the world accurate time and date. NTP is a simple UDP based protocol and can be implemented in a Microcontroller. Using the tuxgraphics ethernet board and a LCD display we can build a nice clock which gets time and date via NTP. Just attach it to you DSL router.[more]
Posted on 18 May 2008
This article discusses how to overwrite bytes in the CGRAM to display custom bit-map graphics on a Hitachi HD44780-compatible character LCD display. A method is described of transforming a raster image to an array of values that are a monochrome bit-map representation of the original.[more]
Posted on 18 May 2008
This is a cheap alternative to serial LCDs. This post is based in the work made previously by tomek in wiring LCD displays using 4 bits. The basic idea is to group the 7 pins that are needed to drive the LCD in only 3 using a shift register. [more]
