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Diffstat (limited to 'Orone-mini-v0/Orone-mini-S8D-v0r001/README-PCB.txt')
| -rw-r--r-- | Orone-mini-v0/Orone-mini-S8D-v0r001/README-PCB.txt | 35 |
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diff --git a/Orone-mini-v0/Orone-mini-S8D-v0r001/README-PCB.txt b/Orone-mini-v0/Orone-mini-S8D-v0r001/README-PCB.txt new file mode 100644 index 0000000..13d9e69 --- /dev/null +++ b/Orone-mini-v0/Orone-mini-S8D-v0r001/README-PCB.txt @@ -0,0 +1,35 @@ +Orone-mini-S8D-v0r001 +Copyright 2013 G Bulmer + +This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. +I ask that my name remain visible in the copper. + +The pin headers are standard 'breadboard friendly' 0.1" pitch. +The two rows of pin headers are 0.8" apart, and hence fit a single breadboard. +The board is 2.3" long x 1" high. Most components are 1206 or larger. + +1206 components are too big to fit in mini-like 2.1" length +Hence the board is lengthened from 2.1" to 2.3" +Replaced C1 with 7343-case size + +Design Rules: OSHPark.com & Seeedstudio 'Fusion' PCB Service + +Routing +Crystal tracks & Top Layer MCU tracks are 6mil/6mil in order to make enough space for components and isolation. +All tracks from thru-hole (hand soldered) components, except pin headers, are 10mil or wider. This is intended to make the tracks more robust. + +All Bottom Layer tracks are 10mil or bigger, except Crystal tracks; this is intended to be easier to make. + +Copper pours have 10mil isolation; this is intended to be easier to make. + +Vias: The three via shapes are used to give information, and help 'read' the PCB. +VIA KEY +SQUARE: Digital Ground (DGND) and thermal vias +ROUND: Signal +OCTAGON: Power (e.g. Vcc) or segregated Ground (e.g. AGND) + +Notes +There are four Hidden Airwires, which do not need routing (replicated on switches) +For safety, type 'RATSNEST *' to make them visible before making any changes +Two pads 33 and DISC, printed at 45 degrees, are signals, and not for components. +DRC->Restring Pads & Vias minimum increased from OSHPark 7mil to 10mil to support more PCB manufacturers design rules by providing larger annular rings. |
