2 layers103 × 30.5 mm
2 layers38.1 × 50.8 mm
ProMicro E80
dkmr27/ProMicro-E803PCB for nRF52840 ProMicro and Ebyte E80-x00M221xS modules
- Size
- 38.1 × 50.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 31
- Pads
- 62
- Tracks, vias
- 54, 54
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 14 Jul 2026
- Updated
- 14 Jul 2026
Overview
ProMicro E80 is an open-source printed circuit board by dkmr27, from the dkmr27/ProMicro-E80 repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 38.1 × 50.8 mm with 9 parts on 31 nets, routed with 54 tracks and 54 vias.
Its parts include 4 connectors, 2 capacitors, 2 resistors and 1 switch. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdProMicro-E80
A PCB for nRF52840 promicro using Ebyte E80-x00M221xS LR1121 and LR2021 modules
The production folder contains a .zip file suitable for JLCPCB.
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1M | Resistor_SMD:R_1206_3216Metric | R1, R2 |
| 2 | ~ | Connector_PinSocket_2.54mm:PinSocket_1x13_P2.54mm_Vertical | J1, J2 |
| 1 | 100nf | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C2 |
| 1 | 47uf 6.3v Tant | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B_HandSolder | C1 |
| 1 | Batt | Connector_Wire:SolderWire-0.75sqmm_1x02_P4.8mm_D1.25mm_OD2.3mm | J4 |
| 1 | E80-x00M221xS | Ebyte E80 xxxM2212S:E80-400&900M2212S | J3 |
| 1 | RST | Button_Switch_SMD:SW_SPST_TS-1088-xR020 | SW1 |
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Questions
How big is the ProMicro E80 PCB?
It measures 38.1 × 50.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ProMicro E80 use?
9 parts. 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 ProMicro E80 KiCad files?
From the dkmr27/ProMicro-E80 repository on GitHub, at the commit this page was made from: the board is ProMicro-E80.kicad_pcb and its schematic ProMicro-E80.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ProMicro E80 design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).