4 layers17.8 × 30.5 mm ProMicro POS, the printed circuit board in 3D

ProMicro POS

collection of various PCBs fitting the Sparkfun ProMicro and Arduino ProMini

Size: 17.8 × 30.5 mm
Copper layers: 4
Thickness: 0.8 mm
Parts: 36
Nets: 42
Pads: 130
Tracks, vias: 205, 64
Pours: 6
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 22 Dec 2020
Updated: 5 Dec 2020

Overview

ProMicro POS is an open-source printed circuit board by clayton13, from the clayton13/ProMicro repository on GitHub. It is a 4-layer board of 17.8 × 30.5 mm with 36 parts on 42 nets, routed with 205 tracks and 64 vias.

It is built around the AP2112K-1.8 and MPU-9250. Its parts include 11 capacitors, 5 resistors, 3 ICs, 2 connectors and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

README

ESP12E/README.md

ProMicro_ESP12E

This module can be mounted to an Arduino Pro Mini, Arduino Nano, Sparkfun Pro Micro, or any other pincompatible MCU running with 3.3V.

Documentation

All files can be found on Github.

Schematic

Layout

BoM

Gerbers

can be found within the Github repository.

License

This documentation describes Open Hardware and is licensed under the CERN OHL v.1.2.

You may redistribute and modify this documentation under the terms of the CERN OHL v.1.2. (http://ohwr.org/cernohl). This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL v.1.2 for applicable conditions

Category and platform

AVR (ATmega, ATtiny)

Project files

Show this board on your page

https://pcbkit.io/boards/clayton13/ProMicro/POS/ProMicro_POS.kicad_pcb

The board's own page, for a message or a post.

Source

Repository: clayton13/ProMicro
Board file: POS/ProMicro_POS.kicad_pcb
Commit: dffdf62
Licence: Not stated

Parts

Qty	Value	Footprint	References
7	100n	Capacitor_SMD:C_0402_1005Metric	C1, C2, C3, C4, C5, C7, C9
2	4k7	Resistor_SMD:R_0402_1005Metric	R4, R5
2	DNP	Capacitor_SMD:C_0402_1005Metric	C10, C11
2	SolderJumper_2_Open	Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm	JP1, JP4
2	TestPoint	TestPoint:TestPoint_Pad_1.5x1.5mm	TP5, TP6
1	0	Resistor_SMD:R_0402_1005Metric	R2
1	10	Resistor_SMD:R_0402_1005Metric	R1
1	10n	Capacitor_SMD:C_0402_1005Metric	C6
1	1k	Resistor_SMD:R_0402_1005Metric	R3
1	27n	Inductor_SMD:L_0402_1005Metric	L1
1	4,7µ	Capacitor_SMD:C_0603_1608Metric	C8
1	AP2112K-1.8	Package_TO_SOT_SMD:SOT-23-5	U2
1	AUX_SCL	TestPoint:TestPoint_Pad_D1.5mm	TP2
1	AUX_SDA	TestPoint:TestPoint_Pad_D1.5mm	TP1
1	Coax	Connector_Coaxial:SMA_Samtec_SMA-J-P-H-ST-EM1_EdgeMount	J2
1	FSYNC	TestPoint:TestPoint_Pad_D1.5mm	TP3
1	Jumper_NC_Small	Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm	JP3
1	Jumper_NO_Small	Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm	JP2
1	LED	LED_SMD:LED_0603_1608Metric	D1
1	Logo_Open_Hardware_Small	Symbol:OSHW-Symbol_6.7x6mm_SilkScreen	LOGO1
1	MPU-9250	Sensor_Motion:InvenSense_QFN-24_3x3mm_P0.4mm	U1
1	MountingHole	MountingHole:MountingHole_2.1mm	H2
1	SIM28ML	RF_GPS:ublox_MAX	U3
1	Sparkfun_Pro_Micro	Module:Sparkfun_Pro_Micro	A1
1	VBAT	TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm	TP4
1	uFL	Connector_Coaxial:U.FL_Hirose_U.FL-R-SMT-1_Vertical	J1

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Questions

How big is the ProMicro POS PCB?

It measures 17.8 × 30.5 mm and has 4 copper layers, 0.8 mm thick.

What parts does the ProMicro POS use?

36 parts, built around the AP2112K-1.8 and MPU-9250. 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 POS KiCad files?

From the clayton13/ProMicro repository on GitHub, at the commit this page was made from: the board is POS/ProMicro_POS.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the ProMicro POS design in my own project?

Its repository states no licence, so its author keeps all rights: ask clayton13 before reusing the design.