AVRMultiSketch is an Objective-C OS X app that relinks and edits compiled sketch code (elf files) to allow multiple Arduino sketches to be loaded on and run from a single AVR mcu without modifying flash or the source code of the Arduino sketches in any way. On reset/power up: For eve...
As it turned out those cheap boards can drift quite a lot more depending on the load the sketch is causing. While testing I've had Arduinos which were running ahead by multiple seconds after less than 10 minutes of testing. So the sketch will now ignore system time in many places and r...