I was in radio shack and I saw this micro computer for $39.95 so I
   bought one.

   There are over 400 pages of free down loadable documentation..

   http://www.parallax.com/product/90005 <http://www.parallax.com/product/90005>


   It is almost powerful enough for an EFI system. Especially with a
   little help from these circuits.

   Use the reset connected to the CAS  line as a hardware interrupt.

   It is very easy to program. My golden retriever Suzzy could do it if
   she had fingers instead of paws :)

   Thats how Bill Gates got started as well as several other
   billionaires.

   Paul Lamar


   PJRC     Teensy 3.1                                   $17 from OSH
   Park programmed compiled in Coridium ARM Basic     Free (or Ardiuno
   compatible) Free far more capable and superior to the Basic Stamp I
   use two in my plane:   Electronic engine monitor    Electronic roll
   and pitch trim, and flap control

   Terry N51079 N41521


   Great to hear from you Terry. We need more people on here  into this
   stuff.


   I agree BASIC Stamp is way too limited.

   I looked at Coridium ARM Basic about a year ago and it was not ready
   for prime time. Very glad to see you have it working. Mikro ARM
   Basic on the other hand is lacking in sufficient documentation IMHO.
   Too far away to get fast help. Nice hardware however.

   https://www.pjrc.com/teensy/teensy31.html <https://www.pjrc.com/teensy/teensy31.html>

   https://oshpark.com/shared_projects/page/6 <https://oshpark.com/shared_projects/page/6>

   http://www.coridiumcorp.com/prod-directory.html <http://www.coridiumcorp.com/prod-directory.html>

   The old Teensy had an AVR (AKA Atmel)  processor when I looked at it
   the last time. Glad to see they upgraded it to the ARM

   I'll get a new Teensy 3.1 with the ARM.

   Where did you obtain the ARM basic compiler?

   Paul Lamar



   Hi Terry
   Im interested in rolling my own flap and trim control.
   Are you willing to share your setup and code design.

   Steve Izett



Steve, what board are you planning to use? I have a program that I wrote for an Arduino Mega that reads a POT connected to the flap actuator and activates an H bridge. It works- press the down button and get 10 degrees, press it again get 20 and the third time get max, which on my plane is 40. Press it once and it goes up a notch, etc.
I have tried to put it on an Uno or Tiny and it doesn't work just right, but on the Mega 2560 it works fine.

I re-purposed a pair of Microsoft joysticks for my sticks- the center joystick is elevator and aileron trim, the buttons on the left are up and down flaps, and the buttons on the right are interior lighting. The thumb button is autopilot off and on. The trigger is PTT. Works great.

If anybody wants more info, shout at me.

Let me know if this will work for you-

Kevin Alderman




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