Controller/timer for UV device that can be used to etch with UV rays. Main electronic components are the controller, relay and LCD boards. LCD must be 2-line and 16 characters per line wide. The project also requires 5 VDC, 150 mA, stabilized power supply (see Hardware/AC-DC), 3 buttons input panel and an optional buzzer. Of course, fluorescent UV bulbs and digital ballast modules are important as well. Controller triggers UV bulbs on preset time, to photo-etch the photosensitive surfaces/materials.
Few images taken while prototyping...
Firmware of this device and all the accompanying materials are GPL licensed. It is written for ATtiny2313 (ATMEL/Microchip). Main board designed to fit 1-1, under the LCD controller board - T162DBNL. This particular model uses Samsung KS0066U chip. It has blue background, green backlight and bright, yellow characters. It appears to be compatible with HD44780.
Based on provided materials, you can make one on your own. This is a prototype and production is limited. Please, use the contact form if you willing to buy any of the components and/or if questions arise.
Next step is to construct external case of the device, so it becomes fully functional product. It pretty much depends on interest and received support.