[Paparazzi-devel] 5v pulse required for CHDK on Lisa/M2
From:
Gerard Toonstra
Subject:
[Paparazzi-devel] 5v pulse required for CHDK on Lisa/M2
Date:
Thu, 1 Nov 2012 19:22:40 -0300
Hi all,
I think I'm nearing the point where I can start some test flights with my setup.
I'd like to use a camera to take pictures. In my case that's a Canon with CHDK extensions. When the software detects 5V at the USB port, it triggers a picture to be taken.
I'm connecting this to one of the ADC's, but the voltage is 3.3v and not enough to trigger the camera. I've verified this using a 3.3v supply from an arduino. So I definitely need a higher voltage.
Is there any other pin I could use that does output 5v, which is configurable in the dc_cam module, or can this only be solved by inserting a level shifter? If a level shifter is required, what are recommended components / boards?