HardLabs

OLD-combat

mkhrenov·openhell·combat-pcb/OLD-combat-pcb.kicad_pcb

OLD-combat PCB layout, top view — open source AVR/Arduino board by mkhrenov

About the OLD-combat PCB

OLD-combat is an open source AVR/Arduino PCB design by mkhrenov, published on GitHub. It is a 2-layer board measuring 68.1 × 34.8 mm, with 22 components from 12 distinct parts.

Its main chip is the Arduino_Nano_ESP32, from the AVR/Arduino family. Other key parts include the LSM6DSRTR, RP2, H3LIS331DLTR and AP63205WU. By type, the board carries 8 connectors, 8 capacitors, 4 ICs, 1 module and 1 inductor.

Main components on the OLD-combat

LSM6DSRTRRP2H3LIS331DLTRAP63205WUArduino_Nano_ESP32

OLD-combat bill of materials (BOM)

22 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LSM6DSRTR
IC1
1
RP2
IC2
1
H3LIS331DLTR
IC3
1
AP63205WU
U2
1
Arduino_Nano_ESP32
A1
6
Conn_01x03_Pin
J1, J2, J3, J4, J5, J6
1
Screw_Terminal_01x02
J7
1
Conn_01x16_Socket
J8
1
4.7uH
L1
2
10uF
C1, C8
4
100nF
C2, C5, C6, C7
2
22uF
C3, C4

OLD-combat design files

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

OLD-combat: common questions

What microcontroller does the OLD-combat use?

The OLD-combat is built around the Arduino_Nano_ESP32, from the AVR/Arduino family.

How big is the OLD-combat PCB?

The OLD-combat measures 68.1 × 34.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OLD-combat?

22 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the OLD-combat design files?

From the mkhrenov/openhell repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the OLD-combat design in my own project?

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

Can I test firmware for the OLD-combat 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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