I’m making progress on my avr-based KAP controller.

This one should include most of what I’ve planned– I’ll be using my garmin foretrex 201 for the GPS system, which will connect via the serial cable to the unit. There will be data logging onboard that’ll track altitude (from the pressure sensor) and GPS position throughout the flight. You can then plug the unit into a computer and download that data.

Thursday, all the rest of the parts should show up. I’ve realized that I can offload a lot of the controls (dip switches, trimpots) off this controller, but I like Tom Benedict’s idea of being able to switch all radio off if working in radio sensitive environments, so I’m leaving a trimpot to set tilt onboard, but only if the power switch is set to radio-off.

If these controllers work well, I may consider selling them (either as a solder-your-self kit with pre-programmed chips) or complete devices. I’m leaning towards the former since the soldering isn’t hard, and it would avoid the need for a really nice case– I’m having trouble finding ones the right size. Any thoughts?

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