10.42.42.9: Created page with " As most air hockey players have probably noticed by now, there are some issues with the current air hockey score board set-up. Namely: * Goal detection is unreliable * The sc..."

2011-10-01T23:19:57Z

Created page with " As most air hockey players have probably noticed by now, there are some issues with the current air hockey score board set-up. Namely: * Goal detection is unreliable * The sc..."

New page

As most air hockey players have probably noticed by now, there are some issues with the current air hockey score board set-up. Namely:
* Goal detection is unreliable
* The score board occasionally hangs
* Some other minor annoyances
And, most importantly, we didn't build it ourselves!

So it's about time we solve all of this by building our own version.

I (smeding) have started some design & building work, but feel free to contribute in any way you can, of course.

== Current design ==
<img src="/old/scoreboard.png" alt="the schematic" width='1024'' /><br />
[/old/scoreboard.sch|gschem schematic file]

The current design is based around:
* An AVR microcontroller
* Four VacuumFluorescentDisplays, driven by shift registers and open-collector drivers
* A buzzer for audio feedback
* Two switches for control
* Two phototransistors for goal detection

Notes:
* The AVR in the schematic is an ATMega328P but a smaller one may also be sufficient
* I have never worked with optical sensors before so the current design may be a bit too simplistic in that regard. Comments are appreciated.

AirHockeyScoreBoard - Revision history

10.42.42.9: Created page with " As most air hockey players have probably noticed by now, there are some issues with the current air hockey score board set-up. Namely: * Goal detection is unreliable * The sc..."