RS3Finished

Finally have all of the connections wired and (more or less) tested. I’ve added LEDs to the running lights and servos (not shown) to control the couplers. Just need to add about 11oz or so to the fuel tank and put it all back together for final testing. I’ve attached a programming cable to the microcontroller board so I can download new builds or tweak the s/w if required. Phew. This has been quite a bit of development. The control widget itself went through many interations (see controlwidgets.com) as did the power board. I’ve settled on the Pololu 18v7 programmed to only give forward motion with a relay switching between forward and backward. Anyhow, soon we will be doing some real world testing.

powerboard

Main power board I’m working on for my Aristocraft RS-3. I removed all the old radio R/C gear and the nimh batteries and am replacing it with a new control widget, this board, the pololu motor controller (on the right) and a big 5000mah lipo. Should be interesting.

hhd-A
hhd-B

Here is my latest stand-alone hand-held-throttle design. It’s based on my control widget thing and I (finally) have it all working.

All the circuits and keyboard are mounted on a 3D printed faceplate with a 3D printed back enclosure. It still needs some structural work, screws to hold the face plate on and I need to mount the power switch too, not sure where that should go.

There is some hard-coded stuff in the handheld software but it does work quite well. I also have a slight design gotcha on my USB interface into this thing but I’ll get that solved soon.

pir-widget

I’m really enjoying my widget PCB design. Simple, cheap, easy bake oven for SOIC, program in C, add an Xbee for wireless real-time control, how cool is that? Here I have one hooked up to a parallax IR motion sensor. With a bit of C code it controls the servo based on the input from the motion sensor. Think railroad crossing signals- that crossing arm that comes dowm and blocks the traffic, right?

Anyhow, great fun and a good project to post over to controlwidgets.com

I’m looking at a $9 retail for board and components. Software will be free and open source. Of course :)