HardLabs

Buck hackathon

Kabilan-Sekar·buck-hackathon·pcb/layout.kicad_pcb

Buck hackathon PCB layout, top view — open source AVR/Arduino board by Kabilan-Sekar

About the Buck hackathon PCB

Buck hackathon is an open source AVR/Arduino PCB design by Kabilan-Sekar, published on GitHub. It is a 2-layer board measuring 128.5 × 65.5 mm, with 13 components from 11 distinct parts.

Its main chip is the ARDUINO_UNO_R3, from the AVR/Arduino family. Other key parts include the LM555XM. By type, the board carries 3 capacitors, 2 connectors, 2 resistors, 1 IC, 1 module and 1 transistor.

It belongs with the power & battery designs in this gallery.

From the project

This repository contains the design files, simulation results, and PCB layout for a Buck Converter (step-down DC-DC power converter).

This repository contains the design files, simulation results, and PCB layout for a Buck Converter (step-down DC-DC power converter).

finalbuck.slk: The main Simulink Model used for the transient and steady-state simulation of the converter. bodeplot.png: Image showing the Bode Plot of the control loop, critical for verifying stability (phase and gain margins). waveforms.png: Image of key time-domain waveforms from the simulation (e.g., output voltage ripple, inductor current). notes.txt`**: General observations and design notes.

Main components on the Buck hackathon

LM555XMARDUINO_UNO_R3

Buck hackathon bill of materials (BOM)

13 components, 11 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM555XM
LM555xM
U1
1
ARDUINO_UNO_R3
Arduino_UNO_R3
A1
1
IRLIZ44N
Q3
2
CONN_01X02_SOCKET
Conn_01x02_Socket
J1, J2
1
Voltmeter_AC
MES2
1
D_Schottky
D1
1
400μH
L1
1
C_Polarized
C1
2
1μF
C2, C3
1
3.791409Ω
R1
1
13.319585Ω
R2

Buck hackathon design files

The KiCad project lives in the Kabilan-Sekar/buck-hackathon repository on GitHub; these links point at the commit this page was built from.

Buck hackathon: common questions

What microcontroller does the Buck hackathon use?

The Buck hackathon is built around the ARDUINO_UNO_R3, from the AVR/Arduino family.

How big is the Buck hackathon PCB?

The Buck hackathon measures 128.5 × 65.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Buck hackathon?

13 components, from 11 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 Buck hackathon design files?

From the Kabilan-Sekar/buck-hackathon repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Buck hackathon design in my own project?

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

Can I test firmware for the Buck hackathon 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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