dtctr - Pocket sized 15Khz hsync generator.

[ube]

The dtctr is a pocket device for use for testing if a monitor is 15KHz capable, a must if to be used with Atari ST and Amiga amongst other computers. It's powered by a 3V CR2032 battery and by the press of the power button it generates a test image within 6 seconds as of now since the firmware is really slow.

The firmware is based (slightly tweaked) on Nick Gammons work.
The hardware is basically an Arduino pro mini running at 16MHz, and can be programmed using the ISP header on the board.


Design files and source code.

front.jpg

back.jpg

[DrF]

What a clever and time saving device :)
The amount of times i've read a spec sheet for something and its not had that feature or been completely wrong :lol:

[PhilC]

Very interesting. Does it just sync the screen or display anything?

Thanks for sharing the code etc.

[ube]

Here's an image of my 1990FXp with it's info screen active while generating a signal. It's an earlier design, but everything is the same.