2 layers90 × 65 mm
Pro micro test fixture
joshajohnson/sea-micro
Arduino Pro Micro, with a USB Type-C Connector
32 parts77
2 layers99.9 × 65 mm
Pro micro test fixture
joshajohnson/sea-micro77Arduino Pro Micro, with a USB Type-C Connector
- Size
- 99.9 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 65
- Pads
- 209
- Tracks, vias
- 421, 61
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 7 Jan 2020
- Updated
- 28 Aug 2021
Overview
Pro micro test fixture is an open-source printed circuit board by joshajohnson, from the joshajohnson/sea-micro repository on GitHub. It is a 2-layer board of 99.9 × 65 mm with 39 parts on 65 nets, routed with 421 tracks and 61 vias.
It is built around the 74HC595. Its parts include 5 resistors, 5 ICs, 4 connectors, 3 capacitors and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdsea-micro
An Arduino Pro Micro, with but with a Type-C connector.
Targeted as an alternative for the ubiquitous Pro Micro in DIY keyboard applications.
Features:
- Pro Micro compatible pinout.
- Mid Mount USB Type-C Connector.
- On-board reset button.
Developed in conjunction with Custom KBD.
Revision History:
0.1 - "Elite-C" compatible pinout, with added ESD protection.
0.2 - Removes castellated pads for lower cost manufacturing.
0.3 - Name changed to sea-micro, now targeting Pro Micro w/ Type-C feature set at the lowest cost possible.
0.4 - Added D+ and D- pads on underside of PCB, DFM improvements for USB connector.
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1K | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4, RN5, RN6 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2, H3, H4 |
| 3 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3 |
| 3 | 74HC595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1, U3, U4 |
| 2 | 3K3 | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 5K1 | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | Board-Title | josh-logos:board-title | LOGO3, LOGO3 |
| 2 | OSHW_FMask | josh-logos:OSHW_Logo_3.6x3.6_F.Mask | LOGO2, LOGO2 |
| 1 | 100mA | josh-passives-smt:Fuse_0603_1608Metric | F1 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | ARDUINO_PRO_MICRO | josh-module:Arduino_Pro_Micro | U2 |
| 1 | ARDUINO_PRO_MICRO | josh-module:Arduino_Pro_Micro_POGO | U5 |
| 1 | AVR-ISP-6 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J1 |
| 1 | D+ | TestPoint:TestPoint_Loop_D2.60mm_Drill1.4mm_Beaded | TP2 |
| 1 | D- | TestPoint:TestPoint_Loop_D2.60mm_Drill1.4mm_Beaded | TP1 |
| 1 | G201-A Clamp | josh-mechanical:GH-201A | H5 |
| 1 | GRN | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | Josh-Details | josh-logos:josh-details | LOGO1 |
| 1 | Josh-Logo | josh-logos:josh-johnson-logo-8_6x1_5 | LOGO4 |
| 1 | PWR_JMP | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | PWR_SEL | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J4 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | USB_C_Receptacle_USB2.0 | josh-connectors:USB_C_U262-161N-4BVC11 | J3 |
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Questions
How big is the Pro micro test fixture PCB?
It measures 99.9 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pro micro test fixture use?
39 parts, built around the 74HC595. 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 Pro micro test fixture KiCad files?
From the joshajohnson/sea-micro repository on GitHub, at the commit this page was made from: the board is test-fixture/test-fixture-hardware-0.2/pro-micro-test-fixture.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pro micro test fixture design in my own project?
Its repository states no licence, so its author keeps all rights: ask joshajohnson before reusing the design.