OSH Park
Profile for piersfinlayson
Shared projects
QFN24 Breakout Board
by
piersfinlayson.
2
layer board of
0.54x1.26
inches
(13.64x32.08
mm).
Shared on
January 13th, 2017 21:13.
Designed for a CP2104 USB to UART bridge, broken out suitable for breadboard prototyping.
Note that centre pad isn’t grounded, and there is no ground plane.
ESP-32S breakout board
by
piersfinlayson.
2
layer board of
1.13x1.43
inches
(28.58x36.20
mm).
Shared on
December 31st, 2016 14:43.
A minimal footprint breakout board for the ESP-32S module. Untested.
Ghetto PoE 5V v0.1
by
piersfinlayson.
2
layer board of
0.77x0.75
inches
(19.51x19.02
mm).
Shared on
October 25th, 2016 16:02.
Ghetto PoE 5V v0.1
A board designed to take 5v from a micro USB connector and send it down a CAT5/CAT6 cable for breakout and use at the remote end.
The board sends power down all 4 pairs, so the current carrying capacity is maximised, and should be good for around 500mA. Note that voltage drop will be an issue over long cable runs.
The BOM is pretty basic:
An RJ45 port, with LEDs (of which only the right, green, one is used to indicate power). I’ve used the Amphenol RJHS-4081.
Micro USB PCB mount connector. I use cheapos from aliexpress.
A current limiting 0603 resistor for the LED - I’m using a 1.5K to keep power use down.
A 1206 0.5A hold current, 1A trip current resettable fuse. I’m using Littelfuse 1206L050YR.
555 led flasher
by
piersfinlayson.
2
layer board of
0.44x0.36
inches
(11.28x9.04
mm).
Shared on
September 23rd, 2016 11:24.
A simple 555 LED flasher circuit, using a TI TLC555CD (SOIC package) designed to flash 2 LEDs at the same time. Built to expect 0402 Rs and Cs, and 0603 LEDs (but will prob try out 0402 LEDs).
otb-8266 breakout v0.1
by
piersfinlayson.
2
layer board of
1.13x0.93
inches
(28.58x23.49
mm).
Shared on
September 16th, 2016 18:29.
A breakout board for the otb-8266 v0.1 ESP8266 module.