Pro meowcro
About the Pro meowcro PCB
Pro meowcro is an open source Nordic nRF PCB design by Stary2001, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 55 × 50 mm, with 25 components from 14 distinct parts.
Its main chip is the ProMicro NRF52, from the Nordic nRF family. Other key parts include the HT-RA62 and E80-xxxM2213S. By type, the board carries 12 resistors, 6 connectors, 3 ICs, 2 transistors and 2 switches.
From the project
Here's all my mesh stuff. Everything here is licensed under CERN OHL-P.
Main components on the Pro meowcro
Pro meowcro bill of materials (BOM)
25 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ProMicro NRF52 | ProMicro_NRF52 | U1 |
| 1 | HT-RA62 | HT-RA62 | U2 |
| 1 | E80-xxxM2213S | E80-xxxM2213S | U4 |
| 1 | AO3401A | SOT-23 | Q1 |
| 1 | 2N7002 | SOT-23 | Q3 |
| 3 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J1, J2, J5 |
| 1 | Conn_01x02 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3 |
| 1 | Conn_01x02 | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J4 |
| 1 | Conn_01x04 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J6 |
| 2 | SW_Push | SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1, SW2 |
| 8 | 0 | R_0603_1608Metric | R1, R2, R5, R6, R7, R8, R9, R10 |
| 1 | 1M | R_0603_1608Metric | R3 |
| 1 | 1.5M | R_0603_1608Metric | R4 |
| 2 | 10k | R_0603_1608Metric | R12, R13 |
Pro meowcro design files
The KiCad project lives in the Stary2001/my-mesh-nodes repository on GitHub; these links point at the commit this page was built from.
Pro meowcro: common questions
What microcontroller does the Pro meowcro use?
The Pro meowcro is built around the ProMicro NRF52, from the Nordic nRF family.
How big is the Pro meowcro PCB?
The Pro meowcro measures 55 × 50 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pro meowcro?
25 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Pro meowcro design files?
From the Stary2001/my-mesh-nodes repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Pro meowcro design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which Stary2001 chose for the repository.
Can I test firmware for the Pro meowcro without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.
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