2 layers12.7 × 12 mm
Usb 8285 tiny
siredmar/WakeOverUsbViaWlan
This has been tested and works. There are some shortcomings.
23 parts1MIT
2 layers18.4 × 12.1 mm
Usb 8285
siredmar/WakeOverUsbViaWlan1This has been tested and works. There are some shortcomings.
- Size
- 18.4 × 12.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 14
- Pads
- 74
- Tracks, vias
- 273, 22
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 20 Feb 2017
- Updated
- 20 Feb 2017
Overview
Usb 8285 is an open-source printed circuit board by siredmar, from the siredmar/WakeOverUsbViaWlan repository on GitHub, published under the MIT licence. It is a 2-layer board of 18.4 × 12.1 mm with 24 parts on 14 nets, routed with 273 tracks and 22 vias.
It is built around the ESP8285. Its parts include 10 connectors, 6 capacitors, 4 resistors, 2 ICs and 1 crystal. It belongs with the ESP8266 boards of this library.
Main components
1README
sw/espusb/hardware/usb_8285/README.mdThis has been tested and works. There are some shortcomings.
(1) The caps are too big and don't conveniently fit into the USB port.
(2) It's about 2 mil too wide.
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 5.6p | SM0603 | C1, C2, C3 |
| 2 | +5V | .1SMTPIN | P4, P5 |
| 2 | 1.5k | SM0603 | R4, R5 |
| 2 | 12k | SM0603 | R1, R2 |
| 2 | GND | .1SMTPIN | P6, P7 |
| 1 | .1u | SM0603 | C5 |
| 1 | 10u | SM0603 | C4 |
| 1 | 1824 | SOT23-5 | U2 |
| 1 | 1u | SM0603 | C6 |
| 1 | 26MHz | XTAL4TINY | X1 |
| 1 | ADC | .1SMTPIN | P10 |
| 1 | ANT | SM1206 | A1 |
| 1 | D+ | .1SMTPIN | P3 |
| 1 | D- | .1SMTPIN | P8 |
| 1 | ESP8285 | QFN32 | U1 |
| 1 | G0 | .1SMTPIN | P9 |
| 1 | URX | .1SMTPIN | P2 |
| 1 | UTX | .1SMTPIN | P1 |
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Questions
How big is the Usb 8285 PCB?
It measures 18.4 × 12.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb 8285 use?
24 parts, built around the ESP8285. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Usb 8285 KiCad files?
From the siredmar/WakeOverUsbViaWlan repository on GitHub, at the commit this page was made from: the board is sw/espusb/hardware/usb_8285/usb_8285.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb 8285 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).