I’m looking for a microcontroller board for hobby robotics projects. I can see the advantages of FreeRTOS (thanks in part to the article by Phil Davis in the September '06 Servo). I’m hoping someone here can suggest something that:
- can be easily programmed from a Mac OS X machine
- sports a reasonable number of digital I/O lines and A/D inputs
- costs less than $50
- and of course, is compatible with FreeRTOS
I rather like the looks of the gnuarm toolchain (they have precompiled binaries available for my platform, which is a big plus!). But I’d take an AVR board too if you can recommend a toolchain.
If it helps, ARM boards I’ve seen are the Futurlec “ET-ARM Stamp” (uses an LPC2119), the Futurlec “ARM2103” (LPC2103), the New Micros “Tini2131” (LPC2131), and the Coridium “ARMmite” (ARM7).
In the AVR world, I’ve seen various controllers in my price range based on the ATMega128 and ATMega168. I’m still unsure how easy it is to program these from OS X, but I think it can be done.
So. From a FreeRTOS point of view, any recommendations?