Pat Thoyts [Sun, 21 Feb 2016 23:00:40 +0000 (23:00 +0000)]
Updated PCB for manufacture by Ragworm.
Updated the BOM and added an Eagle-style gerber output to the makefile as
Ragworm want these rather than the hackvana files seeed will take.
PCB manufacture was successful and the board works fine.
Pat Thoyts [Sun, 7 Dec 2014 12:54:21 +0000 (12:54 +0000)]
Working version.
Implemented both randomised ticking with skipped ticks. Can skip 1 or 2
ticks and catches them up on the next tick. Tick offset is up to half a
second.
Works out quite nicely irregular with the skipped ticks catching the
attention quite well.
Pat Thoyts [Sat, 6 Dec 2014 00:16:36 +0000 (00:16 +0000)]
Implemented irregular ticks.
With two /8 dividers we get 512 interrupts per second. By counting 16
of these we get a 30ms interval to energise the coil for a tick.
We add a random number up to 15 additional 30ms intervals to offset the
actual time of the tick.