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Using an Arduino Micro Pro module along with a real time clock and a darlington driver array I created a working Topsy Turvy Clock.


The electronics was not particularly challenging, I effectively wired 3 off the shelf components together using a motherboard/module approach. The stepper motors had a gearbox so to know the absolute position I added a clear disk with a segment marked off with tape which passed through a slotted opto sensor. On startup the clock homes each of the motors before moving to the correct locations.


If you've any questions about the electronics or anything else about the clock, please leave a comment.



I've entered it into the Atmel Simply AVR Design Contest, you can see the other entrants here - Atmel Simply AVR Design Contest


Arduino mini arcade cabinet

Posted by hwhardsoft Sep 16, 2014

I want to introduce a tiny arcade cabinet (14cm heigth) based on the Arduino. The arcade is also full compatible to the Gamebuino - an Arduino based game console. The Arcade game is equipped with a ATMEGA328 and the screen of the game has been provided by a Nokia 5110 LCD. A couple of Open Source games for the Gamebuino and so also for this Arcade cabinet are available - programmed under the Arduino IDE... Check my website for more information.






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