Build guide

MacBook Breathing Light

14×28 @ 2.54mm pitch · 11 components · 19 wires

1. Prepare

Verify component pinouts against each manufacturer’s datasheet before wiring. Label cut wires with their wire numbers; the same numbers follow them through every stage. Wire colors are written out for black-and-white printing. Custom colors can be named in the wire library.

Progress is saved on this browser for this board revision. Changes to the board or measurements start a new checklist. Printed diagrams are references, not life-size templates.

19 wires to prepare; 467mm total wire, including end allowances.

Parts List

10 unique parts

Ref DesPartValueManufacturerPart NumberQtyLink
C1Ceramic Cap100nF——1Amazon
C2Ceramic Cap10nF——1Amazon
C3Electrolytic Cap100uF——1Amazon
J1Power Input (2-pin)——1—
LED1LED——1Amazon
Q1, Q2NPN Transistor (TO-92)——2Amazon
R1Resistor (axial)4.7k——1Amazon
R2Resistor (axial)33k——1Amazon
R3Resistor (axial)330——1Amazon
U1DIP-8——1—

Links may include affiliate referrals.

2. Cut wires

Cutting quantities by color and length

19 wires · +5mm per end for lead-through

Cut#NetColorRouteCut LengthBends
6RAMPBlackG15 → H1614mm—
129VBlackG3 → L323mm—
18GNDBlackH3 → F828mm10mm (90°)
17GNDBlueK5 → H518mm—
5RAMPBlueD18 → E1520mm13mm (90°)
119VBlueC6 → G523mm15mm (90°)
4LED_AGreenK16 → I2025mm15mm (90°)
16GNDGreenM11 → M525mm—
109VGreenF12 → J928mm15mm (90°)
1CONTRedK10 → J1114mm—
7RAMPRedF14 → H1217mm—
19GNDRedE9 → E1628mm—
139VRedI8 → I1839mm9mm (45°), 31mm (90°)
3DISCHWhiteC12 → G1220mm—
99VWhiteD7 → E1123mm15mm (90°)
15GNDWhiteK26 → K1148mm—
2DARLYellowJ15 → K1718mm10mm (90°)
149VYellowH17 → K1820mm8mm (90°)
8RAMPYellowJ16 → G838mm25mm (90°)

Total wire: 467mm (18.4in)

3. Bend wires

Use the straight-line ruler to mark bend points on the wire before bending. Use the bent shape as a visual reference while bending.

Bend ruler and shape for wire 1
Cut 14mm.
Bend ruler and shape for wire 2
Cut 18mm. Bend 90° right at 10mm.
Bend ruler and shape for wire 3
Cut 20mm.
Bend ruler and shape for wire 4
Cut 25mm. Bend 90° left at 15mm.
Bend ruler and shape for wire 5
Cut 20mm. Bend 90° right at 13mm.
Bend ruler and shape for wire 6
Cut 14mm.
Bend ruler and shape for wire 7
Cut 17mm.
Bend ruler and shape for wire 8
Cut 38mm. Bend 90° left at 25mm.
Bend ruler and shape for wire 9
Cut 23mm. Bend 90° right at 15mm.
Bend ruler and shape for wire 10
Cut 28mm. Bend 90° up at 15mm.
Bend ruler and shape for wire 11
Cut 23mm. Bend 90° up at 15mm.
Bend ruler and shape for wire 12
Cut 23mm.
Bend ruler and shape for wire 13
Cut 39mm. Bend 45° down at 9mm. Bend 90° left at 31mm.
Bend ruler and shape for wire 14
Cut 20mm. Bend 90° right at 8mm.
Bend ruler and shape for wire 15
Cut 48mm.
Bend ruler and shape for wire 16
Cut 25mm.
Bend ruler and shape for wire 17
Cut 18mm.
Bend ruler and shape for wire 18
Cut 28mm. Bend 90° down at 10mm.
Bend ruler and shape for wire 19
Cut 28mm.

4. Place wires

Component side. Select a wire to emphasize its route in its own color and highlight its endpoints. Wires follow number order, matching the bend guide and solder checklist.

W1 · K10J11
W2 · J15K17
W3 · C12G12
W4 · K16I20
W5 · D18E15
W6 · G15H16
W7 · F14H12
W8 · J16G8
W9 · D7E11
W10 · F12J9
W11 · C6G5
W12 · G3L3
W13 · I8I18
W14 · H17K18
W15 · K26K11
W16 · M11M5
W17 · K5H5
W18 · H3F8
W19 · E9E16
W1 · K10J11W2 · J15K17W3 · C12G12W4 · K16I20W5 · D18E15W6 · G15H16W7 · F14H12W8 · J16G8W9 · D7E11W10 · F12J9W11 · C6G5W12 · G3L3W13 · I8I18W14 · H17K18W15 · K26K11W16 · M11M5W17 · K5H5W18 · H3F8W19 · E9E16

5. Solder connections

Bottom view: horizontally mirrored. Coordinate names still identify the same physical holes. Highlights mark wire endpoints; wire routes belong on the component side. Check each connection and the listed solder bridges.

Board is horizontally mirrored. Column A is on the right.

W1 · K10J11
W2 · J15K17
W3 · C12G12
W4 · K16I20
W5 · D18E15
W6 · G15H16
W7 · F14H12
W8 · J16G8
W9 · D7E11
W10 · F12J9
W11 · C6G5
W12 · G3L3
W13 · I8I18
W14 · H17K18
W15 · K26K11
W16 · M11M5
W17 · K5H5
W18 · H3F8
W19 · E9E16
W1 · K10J11W2 · J15K17W3 · C12G12W4 · K16I20W5 · D18E15W6 · G15H16W7 · F14H12W8 · J16G8W9 · D7E11W10 · F12J9W11 · C6G5W12 · G3L3W13 · I8I18W14 · H17K18W15 · K26K11W16 · M11M5W17 · K5H5W18 · H3F8W19 · E9E16