PR Micro is a Pro Micro compatible RP2040 board with USB Type-C, inspired by the plut0nium/0xB2 and joshajohnson/sea-picro.
Go to Releases for Gerber, schematic and PCBA files.
A part of ErgoSNM keyboard.
- SparkFun Pro Micro - RP2040 compatible pinout, with additional 5 pins (Elite-C style, but the pinout not identical to Elite-Pi).
- RAW: LDO regulator VIN pin.
- Blue LED (top right): State/User LED (Connect to GP25).
- Red LED (top left): 3.3V power indicator.
- All the GPIO pins of RP2040 can be used as PWM output.
In fact, the RP2040 GPIO pin functions is very flexible, the above pinout figure is a simplified version,
please refer to the RP2040 datasheet "1.4.3. GPIO Functions" section for details.
| Designator | Value | Footprint | Description |
|---|---|---|---|
| C1, C2, C8, C16 | 1uF | 0402 (1005 Metric) | LDO input/output and RP2040 decoupling capacitors |
| C3, C6, C7, C9~C15 | 0.1uF | 0402 (1005 Metric) | Flash and RP2040 decoupling capacitors |
| C4, C5 | 20pF | 0402 (1005 Metric) | Crystal load capacitors |
| D1 | B5817 | SOD-323 | USB VBUS diode |
| F1 | 500mA, 6V | 0805 (2012 Metric) | USB VBUS fuse |
| J1 | USB-C Receptacle USB2.0 | USB-C Receptacle HRO TYPE-C-31-M-12 | USB Type-C connector |
| LD1 | RED | 0603 (1608 Metric) | 3.3V power indicator |
| LD2 | BLUE | 0603 (1608 Metric) | State/User LED |
| R1, R2 | 5.1k | 0402 (1005 Metric) | USB Type-C CC resistors |
| R3, R10 | 330 | 0402 (1005 Metric) | LED series resistors |
| R4, R5 | 27 | 0402 (1005 Metric) | RP2040 USB D+/- series termination resistors |
| R6, R9 | 10k | 0402 (1005 Metric) | |
| R7, R8 | 1k | 0402 (1005 Metric) | |
| SW1, SW2 | BOOT and RESET buttons | B3U-1000P | BOOT and RESET buttons |
| U1 | RT9013-33GB | SOT-23-5 | 3.3V/500mA output LDO regulator |
| U2 | W25Q64JVXGIQ | XSON-8 (4x4mm) | 8MB flash |
| U3 | RP2040 | QFN-56-1EP 7x7mm P0.4mm EP3.2x3.2mm | MCU |
| Y1 | 12MHz | 3225-4Pin (3.2x2.5mm) | Crystal for RP2040 |
There is not designator silkscreen on PCB, please use your browser to open the ibom.html file (placed in Release page and bom/ibom.html) to refer to the placement of the parts, it is generated by Interactive HTML BOM plugin.
See also
PCBA/rp-micro_bom.csv
| Top | Bottom | Layers |
|---|---|---|
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The BOM and CPL files for PCBA are placed in the PCBA folder and Releases page.
- Copper layer count: 2
- Board overall dimensions: 17.78 x 33.02 mm (0.7 x 1.3 inch)
- Min track/spacing: 0.127 mm / 0.127 mm
- Min hole diameter: 0.3 mm
- Castellated pads: No
- Edge card connectors: No
- Plated board edge: No
These files are provided AS IS, without warranty of any kind, express or implied.
Including but not limited to manufacturing, assembly, procurement and use at your own risk.
It is recommended to check yourself before use.
For the full statement, please see LICENSE.