Mitochondrion Mark 4 code is now running on the Mark 5 chip. Teensy 3.0 – an ARM Cortex M4 on an 18 mm wide board. Consider me pleased. Have yet to time the code, but should be faster. Much faster. Which is required, as it might be possible to replace the Mark 4’s 88 LEDs with 800.
Still a long way to go for the Mark 5, but changing the chip from Arduino to Teensy is probably the biggest step.
Also, Eclipse is still a royal pain in the arse, but does actually work for compiling, building, and programming. No debugger and it doesn’t play nicely with the serial port, but it does the job.
(Oh, and the Teensy has an on-chip temperature sensor. This may be needed, as preliminary thermal modeling suggests that full-whack may make the whole thing melt. Coz, you know, EIGHT HUNDRED LEDS.)