HardLabs

Breadboard power supply v1

mhered·KiCAD_udemy_course·projects/02_breadboard_power_supply/breadboard_power_supply_v1.kicad_pcb

Breadboard power supply v1 PCB layout, top view — open source board by mhered

About the Breadboard power supply v1 PCB

Breadboard power supply v1 is an open source PCB design by mhered, published on GitHub. It is a 2-layer board measuring 27.8 × 56.4 mm, with 17 components from 13 distinct parts.

Other key parts include the MLX90393ELW-ABA-011-SP and MLX90393ELW-ABA-012-SP. By type, the board carries 7 connectors, 3 capacitors, 3 resistors, 2 ICs, 1 switch and 1 diode.

It belongs with the power & battery and dev boards & breakouts designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

My notes on the course "PCB design with KiCAD - updated for KiCAD 9" by Dr Peter Dalmaris in Udemy

v1 designed Sept'25, built Dec'25 had two errors:

- Switch S1 was flipped (so OFF was ON and vice versa) - J4 Screw Terminal was flipped (so vA+ was vA- and vice versa)

- fix errors: - flip Switch S1 (so OFF and ON work as intended) - flip J4 Screw Terminal (so vA+ and vA- are as intended) - update schematics: - improve readability - update version number to v2.0 - update silkscreen: - Update version number in back silkscreen to v2.0 - fix footprint of J4 screw terminal in front silkscreen - update 3D view: - color mask black - add jumpers

Breadboard power supply v1, from the project README
From the project README

Main components on the Breadboard power supply v1

MLX90393ELW-ABA-011-SPMLX90393ELW-ABA-012-SP

Breadboard power supply v1 bill of materials (BOM)

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

QtyPartRefs
1
MLX90393ELW-ABA-011-SP
LM317_TO-220
Melexis
U1
1
MLX90393ELW-ABA-012-SP
LM7805_TO220
Melexis
U2
1
Barrel_Jack_Switch
JST Sales American Inc
J1
2
Conn_01x03_Pin
J2, J5
2
Conn_01x02_Pin
J3, J7
2
Screw_Terminal_01x02
J4, J6
1
OS102011MS2QN1
S1
1
LED
D1
1
CC0402JRX7R7BB104
10 uF
Yageo
C1
1
CC0402JRX7R7BB104
0.1 uF
Yageo
C2
1
CC0402JRX7R7BB104
1 uF
Yageo
C3
2
RC0402FR-074K7L
330 Ohms
Yageo
R1, R2
1
560 Ohms
R3

Breadboard power supply v1 design files

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

Breadboard power supply v1: common questions

How big is the Breadboard power supply v1 PCB?

The Breadboard power supply v1 measures 27.8 × 56.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Breadboard power supply v1?

17 components, from 13 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 Breadboard power supply v1 design files?

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

Can I use the Breadboard power supply v1 design in my own project?

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

More boards in KiCAD_udemy_course

Earlier revisions in the repo: breadboard_power_supply

Similar boards