NOV7
Timer for PCB exposure box with ATtiny2313
When doing more than one thing at the same time it is very easy to lose track of time. Exposing PCBs to UV light is delicate work and overexposing will result in, well, you know what.
Exposing is usually done with UV fluo-tubes but compact fluorescent lamps are also safe way to go and result in excellent PCB quality. Housing for the exposure system shouldn't be a problem because those old broken PC scanners come very cheap. The only thing missing here is the timer to turn off those lamps after pre-set (experimentally determined) time, but this also is not a problem any more because this solution with ATtiny2313 is excellent!
© Kizo
[ Source: Darkroom timer for PCB exposure ]
Tajmer osvjetljivača za foto-postupak
Link
Comments (0)
similar content
- Active electronic protection for sound box (23-01-2005) [@Schematics/Audio devices]
- 10 minute timer (24-02-2004) [@Schematics/Timer-circuits]
- Circuit simulator and PCB design software - EasyEDA (17-03-2016) [@News]
- SMS Box project published (05-05-2007) [@News]
- RDS decoder with ATtiny2313 (23-07-2009) [@Schematics/Everything else]
- Darkroom timer for PCB exposure (06-11-2009) [@Schematics/Timer-circuits]
- Three timers (23-02-2004) [@Schematics/Timer-circuits]
- PCB Designer (30-11-2008) [@Programs]
- Render PCBs with Eagle layout editor and POV-ray (31-01-2009) [@News]
- How to make a 4-layer PCB [video] (16-01-2014) [@News]
add comment
Please log-in!
You can log-in on forum link: Login page. After logging-in, return to this page and click refresh in your browser.
