Knit yarn
borisnimcevic·knit_yarn·knit_yarn_badge_v1/knit_yarn.kicad_pcb
About the Knit yarn PCB
Knit yarn is an open source PCB design by borisnimcevic, published on GitHub. It is a 2-layer board measuring 33.8 × 36.1 mm, with 14 components from 4 distinct parts.
By type, the board carries 6 diodes, 6 resistors, 1 battery holder and 1 switch.
From the project
A round PCB badge shaped like a ball of yarn with knitting needles. Six LEDs shine through the board face-down, lighting up the design from behind. Powered by a CR2032 coin cell; the brooch pin doubles as the power switch.
A round PCB badge shaped like a ball of yarn with knitting needles. Six LEDs shine through the board face-down, lighting up the design from behind. Powered by a CR2032 coin cell; the brooch pin doubles as the power switch.
Designed in KiCad. Three badge variants and one SAO variant are included.
Ready-to-order Gerber zips are in the order/ folder:
- order/knityarnbadgev1.zip - order/knityarnbadgev2.zip - order/knityarnbadgev3.zip ← recommended - order/knityarnSAO.zip`

Knit yarn bill of materials (BOM)
14 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Battery_Cell | BatteryHolder_MYOUNG_BS-07-A1BJ001_CR2032 | BT1 |
| 1 | SW_SPST | brooch_SW_20mm | SW1 |
| 6 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2, D3, D4, D5, D6 |
| 6 | TBD | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R5, R6 |
Knit yarn design files
The KiCad project lives in the borisnimcevic/knit_yarn repository on GitHub; these links point at the commit this page was built from.
Knit yarn: common questions
How big is the Knit yarn PCB?
The Knit yarn measures 33.8 × 36.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Knit yarn?
14 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the Knit yarn design files?
From the borisnimcevic/knit_yarn repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Knit yarn design in my own project?
The repository has no license, so all rights stay with borisnimcevic. Use it as a reference, and ask the author before reusing the design.