AVR Hex Display Driver:
Need a hex display for your project? Want to add an address bus monitor to your classic 8-bit micro? Use the ATTiny26 to provide a latched 1 digit hexadecimal display (0 to F) with 4 bits of input data (and uses the decimal point for A-F, as I mistake b's for 6's at times.)
Can be used with either common cathode or common anode displays.
A second version of the program reduces the power use of the LED by reducing its duty cycle. Current requirements are about 40% of the original. Sample rates in the reduced power version are about the same as the original, but the display is a bit dimmer.
- Data Sheet (zipped PDF, 32Kb)
- Project Files (Zipped AVR Studio 4 Project, 7kB)
- Reduced Power Version (Zipped AVR Studio 4 Project, 7kB)
AVR Dual Hex Display Driver:
Use an ATMega8 to drive two displays, uses either 7 segment or 10/14 segment displays for a nice hex character set.
This is a complete AVR Studio 4 assembly code project with wiring and timing information and notes. It works with common cathode displays. Common anode displays can be used with simple code mods described in the source, or with external inverters.
The app notes include use examples with different displays, as well as an example of use with an external buffer for high speed data sources.
- Data Sheet (PDF,48kB)
- App Notes (PDF, 46kB)
- Project Files (Zip, 79kB)
AVR STK500 Custom-Made Case:
Let your STK-500 development board travel in style. Build it a custom case. It'll look too good to leave in the laboratory!