Shoulder
About the Shoulder PCB
Shoulder is an open source PCB design by kwan3217, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 38.1 × 25.4 mm, with 35 components from 22 distinct parts.
Other key parts include the AK09970, P82B96, LSM6DSO, BME280 and NEO_M8U. By type, the board carries 10 capacitors, 10 resistors, 8 ICs, 2 connectors, 1 crystal and 1 diode.
It belongs with the sensors designs in this gallery.
From the project
KiCad versions of my circuits
Many of my boards have the Open Source Hardware logo on them. Using this logo requires having an open source license and publishing the source. In order to support this, I have the URL of this repository engraved onto the boards themselves.
I have made a release for the Wearable Pocketometer boards, and intend to make a release each time I have a board made.
All boards which have been released since September 2020 have enough information to construct a bill of materials. This is in the form of Digikey part numbers attached to each part in the KiCad .sch files.
Main components on the Shoulder
Shoulder bill of materials (BOM)
35 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AK09970 | AK09970 | U201 |
| 1 | P82B96 | TSSOP-8_3x3mm_P0.65mm | U202 |
| 2 | LSM6DSO | LGA-14L | U301, U501 |
| 1 | BME280 | BME280 | U401 |
| 1 | NEO_M8U | NEO-M9N_M8T_M8U | U601 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U701 |
| 1 | MIC5319 3.3V | SOT-23-5 | U801 |
| 1 | W3011 | W3011 | Y601 |
| 1 | Conn_02x06_Male | PinSocket_1x12_P1.27mm_Vertical_SMD_Pin1Left | J202 |
| 1 | USB_C_Receptacle_USB2.0 | GCTUSBTypeC_PTH | J701 |
| 1 | ML414H | Coin_Cell_ML414H | B601 |
| 1 | Axis | Axis | G504 |
| 1 | KwanSystems | StKwansSoldermask | G902 |
| 1 | 0.5A/40V/420mV | D_0603_1608Metric | D601 |
| 7 | 100nF | C_0402_1005Metric | C305, C308, C406, C408, C505, C508, C804 |
| 2 | 1uF | C_0402_1005Metric | C601, C801 |
| 1 | 2.2uF | C_0402_1005Metric | C805 |
| 2 | 10k | R_0402_1005Metric | R201, R207 |
| 1 | 100k | R_0402_1005Metric | R602 |
| 1 | 33 | R_0402_1005Metric | R603 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 27 | R_0402_1005Metric | R605, R606, R620, R621 |
| 2 | 5.1k | R_0402_1005Metric | R701, R702 |
Shoulder design files
The KiCad project lives in the kwan3217/kicad repository on GitHub; these links point at the commit this page was built from.
Shoulder: common questions
How big is the Shoulder PCB?
The Shoulder measures 38.1 × 25.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Shoulder?
35 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Shoulder design files?
From the kwan3217/kicad repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Shoulder design in my own project?
Yes, under the terms of its GPL-2.0 license, which kwan3217 chose for the repository.
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