OSH Park
onion2 breakout Rev - 2
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onion2 breakout Rev - 2
by
washintonian88.
2
layer board of
1.57x2.05
inches
(39.78x51.97
mm).
Shared on
April 19th, 2017 01:33.
USB breakout board (dock) for onion omega 2
The goal for this dock is to allow for ‘simple’ bread boarding of the onion omega 2 boards. I have included a 5v to 3.3v voltage regulator for power and a CH340G usb to serial IC for communications. Communications and power are provided through the micro USB connector and the regular USB connector provides access to the onion’s USB line.
Files can be found on my github ( https://github.com/washingtonian88/onion2-breakout)
BOM
| Id | Designator | Package | Quantity | Designation | |
|---|---|---|---|---|---|
| 1 | U1 | SO-16-N | 1 | CH340G | |
| 2 | C1, C2 | C_1206_HandSoldering | 2 | 22pF | |
| 3 | C3 | C_1206_HandSoldering | 1 | 100uF | |
| 4 | C4 | C_1206_HandSoldering | 1 | 10uF | |
| 5 | C5 | C_1206_HandSoldering | 1 | 0.1uF | |
| 6 | P2 | USB_A | 1 | USB_B | |
| 7 | P3 , P6 | Pin_Header_Straight_1x16_Pitch2.54mm | 2 | CONN_01X16 | |
| 8 | P4 , P5 | Pin_Header_Straight_1x16_Pitch2.00mm | 2 | CONN_01X16 | |
| 9 | Y1 | Crystal_SMD_5032-2pin_5.0x3.2mm | 1 | 12MHz | |
| 10 | U2 | SOT-223 | 1 | AP1117 | |
| 11 | P1 | USB_Micro-B | 1 | USB_B | |
| 12 | PCB | “PCB Board 1.57”“x2.05” | 1 | PCB |