VM205

Hacking the Velleman Raspberry Pi VM205 Oscilloscope Lazarus code to better suit my needs/environment

• Raspberry Pi 2
• 16GB SD Card (will migrate to a Sd-card-boot-to-HDD-system in time)
• Velleman VM205 Oscilloscope board (v1.2)
• Lilliput FA1011-NP/C 10.1" 1024x600 HDMI/USB touch screen (that I had kicking around)
• Sparkfun ATX Breakout board v1.1
• Lazarus v1.7

Part of the project will include boxing all of this up so that it's in a self-contained box with a PC ATX power supply, a Sparkfun ATX Breakout board and a few bits and pieces such that everything is powered from a single mains plug. I'd like to have a sturdy box with the screen on top, a BNC socket for a probe, some access to the logic analyser pins and access to the Sparkfun breakout banana sockets (so the box also acts as a bench power supply). No visible wires for the Pi or the display etc.

Top level to-do

• set up the ATX breakout - DONE
• re-arrange screen to best fit a 1024x600 touch screen (move most controls over to the right)
• option to save current settings upon exit (and auto-reload upon next startup)
• capture current trace and 'freeze it'
• save frozen trace as an image
• save period of time as an animation/movie file of some sort?
• save period of time as an array of values (possibly XML or CSV)

Other useful links

Configuring the Lilliput

Velleman VM205 Product Page

Sparkfun ATX Breakout Board