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Tag Archives: microcontroller
External RAM and lost MCUCSR
Atmega’s MCUCSR status register gives info about restart reason like regular reset-pin shorted, watchdog initiated reset, or brown-out on low voltage from power supply. Pieces of valuable information for device defect tracking. Reading MCUCSR early in test program was fine, … Continue reading
Pimp my bus: from 8-bit AVR to 32-bit ARM
Going to newer architecture is unevitable evolution. ARM series is particularly good choice as knowledge of its core functionality is to large extent portable across manufacturers. While ARM Cortex-M chips are close to 8-bit AVRs in footprint size and price … Continue reading
Rainbow glowing ping-pong
While I was finalizing e-snowflake project, I imagined that single RGB 5050 LED would create nice rainbow effect if placed inside a ball like ping-pong. You can find plenty of such projects on the net, this one was heading to … Continue reading
Posted in Electronics, Gadgets
Tagged attiny, attiny13, avr, avr-gcc, DIY, eagle pcb, mcu, microcontroller
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e-snowflake
Late in December 2011 I almost bet that I am able to design & build myself a blinking serpent of rainbow lights for Christmas tree. I did not want to spend much time on creating cables and lights themselves but … Continue reading
The die has been cast
I remember my first digital circuit made up when I was teenager, an electronic dice, made of TTL logical gates, driving 7 LEDs formed to display any combination of dots of thrown dice. I realized it would be good microcontroller … Continue reading
Posted in Electronics, Software
Tagged avr, avr-gcc, dice, die, eagle pcb, firmware, game, mcu, microcontroller
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