HardLabs

Pro3

Gehtschon·pro3·Print/Print_Project/Print_Project.kicad_pcb

Pro3 PCB layout, top view — open source AVR/Arduino board by Gehtschon

About the Pro3 PCB

Pro3 is an open source AVR/Arduino PCB design by Gehtschon, published on GitHub. It is a 4-layer board measuring 100 × 100 mm, with 52 components from 35 distinct parts.

Its main chip is the MKR_WIFI_1010, from the AVR/Arduino family. Other key parts include the eec_ADA4522-1ARMZ-R7, LM7805_TO220 and TL431D. By type, the board carries 17 capacitors, 12 resistors, 7 connectors, 6 diodes, 3 ICs and 2 transistors.

Main components on the Pro3

eec_ADA4522-1ARMZ-R7LM7805_TO220TL431D

Pro3 bill of materials (BOM)

52 components, 35 distinct parts.

QtyPartRefs
1
eec_ADA4522-1ARMZ-R7
U301
1
LM7805_TO220
U401
1
TL431D
U402
1
TIP140
Q301
1
ZVN4306
Q501
1
Conn_01x03_Female_Hallsensor
J201
1
Conn_01x04_Female
J202
1
Screw_Terminal_01x02
J401
1
AnschlussSpuleCC
J601
1
Stromsensor
J602
1
AnschlssSpulePWM
J603
1
Display Connector
J604
1
R
3k401
1
Fuse
F401
1
MKR_WIFI_1010
MD201
1
Reset
SW203
1
LED_Status(Green)
D201
1
LED_Connection(Blue)
D202
1
D_Zener_ALT
D401
2
DIODE
D601, D602
Show 15 more
QtyPartRefs
1
Z_diode
D603
1
Ferrite_Bead
FB401
7
C
C201, C202, C204, C401, C404, C406, C502
4
100n
C203, C301, C408, C601
1
1-2n
C302
4
CP
C402, C403, C405, C501
1
10u
C407
2
68
R201, R202
1
2k
R203
3
1k
R204, R302, R403
2
R
R205, R501
1
82k
R301
1
3.9k
R303
1
100m
R304
1
91
R401

Pro3 design files

The KiCad project lives in the Gehtschon/pro3 repository on GitHub; these links point at the commit this page was built from.

Pro3: common questions

What microcontroller does the Pro3 use?

The Pro3 is built around the MKR_WIFI_1010, from the AVR/Arduino family.

How big is the Pro3 PCB?

The Pro3 measures 100 × 100 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Pro3?

52 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pro3 design files?

From the Gehtschon/pro3 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Pro3 design in my own project?

The repository has no license, so all rights stay with Gehtschon. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Pro3 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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