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Pat Thoyts [Mon, 4 Jan 2016 16:32:29 +0000 (16:32 +0000)]
Updated documentation.
Pat Thoyts [Mon, 4 Jan 2016 16:10:40 +0000 (16:10 +0000)]
Finalized BOM and layout for submission to SeeedStudio.
Switched from 2N7000 to BSS138 N-MOSFET (TO92 to a SOT23 part) but left the
jelly bean 78L05 as the SOT-223 parts have a larger footprint.
Created a proper footprint for the Molex right-angle connected and the
power jack (the earlier one has suspiciously small holes) and rearranged
slightly for this.
Included a Schottky diode inline before the 78L05 for reverse protection
and as a cheap fuse (as seen in the Arduino Nano).
Pat Thoyts [Sat, 2 Jan 2016 16:00:28 +0000 (16:00 +0000)]
Added PCB layout and PDF/PNG documentation for the schematic and layout.
Pat Thoyts [Sat, 2 Jan 2016 01:29:55 +0000 (01:29 +0000)]
Included GEDA gschem schematic for the fan control board.
Pat Thoyts [Sat, 2 Jan 2016 01:28:53 +0000 (01:28 +0000)]
Converted to timer based delay.
Use timer0 to count seconds. Checked with oscilloscope to ensure reasonable
accuracy.
Pat Thoyts [Fri, 1 Jan 2016 22:09:58 +0000 (22:09 +0000)]
Fan controller firmware rev 1
projects / avr / fan_control.git / log