IEEE 802.15.4 subsystem
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IEEE 802.15.4 subsystem Git Source Tree
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Source at commit 49e7c83796bc04941e9dbcec69bc0751563ff4d4 created 7 years 5 days ago. By Werner Almesberger, atusb/: use ""VDD" symbol from kicad-libs | |
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1 | Board characteristics: |
2 | |
3 | - two layers, components only on front |
4 | - smallest components are 0402 and 0.5 mm pitch QFN |
5 | - one through-hole component: USB connector CON1 |
6 | - the following component orientation markings are on the silk screen: |
7 | B1: circle near pin 1 |
8 | D1: plus sign at the anode |
9 | U1, U2: triangle at the corner between pins 1 and 32 |
10 | |
11 | |
12 | Design files: |
13 | |
14 | atusb-front.png Illustration of the PCB's front side (with silk screen) |
15 | atusb-bom.csv Bill of materials |
16 | atusb-pos.csv Automatic insertion file (front only) |
17 | atusb-footprints.pdf Footprint reference drawings |
18 | |
19 | The PCB design files (Gerbers, etc.) are in a separate archive, atusb-pcb-* |
20 | |
21 | |
22 | Interpretation of files: |
23 | |
24 | - for all coordinates, the origin is the lower left corner of the board |
25 | - coordinates in atusb-pos.csv are in inches |
26 | - rotation in atusb-pos.csv is in degrees, counter-clockwise |
27 | - in the footprint reference drawings, footprints are shown in the 0 degree |
28 | orientation and with their center at the crosshairs |
29 |