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Sewing a LilyPad Button Circuit
Ed

Yaremwe na

Ed

13. Nyakanga 2026FI
20
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Sewing a LilyPad Button Circuit

Add a switch you can sew: a LilyPad button placed in the circuit lights your LED only while it's pressed. Same e-textile rules as before — + to + and - to -, no crossing lines — but now the button sits in the + line, so current flows only when you press it. A press-to-light patch for a bag, badge or costume.

Utangiye
30 minutes

Amabwiriza

1

Plan the circuit with a button

Arrange a LilyPad LED, a LilyPad button and a coin-cell battery holder on felt. The button goes in the + line, between the battery's + tab and the LED's + tab, so pressing it completes the circuit.

Materials for this step:

LilyPad LED - 5 pcsLilyPad LED - 5 pcs1 agapaki
LilyPad Button BoardLilyPad Button Board1 igice
LilyPad Coin Cell Battery Holder - 20mmLilyPad Coin Cell Battery Holder - 20mm1 igice
Wool Felt SheetWool Felt Sheet1 urupapuro
2

Sew the positive line through the button

With conductive thread, stitch from the battery + tab to one tab of the button, then knot and cut; start fresh and stitch from the button's other tab to the LED + tab. Loop 3–4 times through each hole for firm contact and trim the tails short.

Materials for this step:

Conductive Thread - 60g (Stainless Steel)Conductive Thread - 60g (Stainless Steel)1 agakoni
Hand Sewing Needles (Assorted, 30-Pack)Hand Sewing Needles (Assorted, 30-Pack)1 agapaki
3

Sew the negative line

With a fresh thread, stitch the LED - tab straight to the battery - tab. Keep this line well away from the + line and the button — anywhere the two conductive paths touch, the circuit shorts.

4

Press to test

Slot in a CR2032 (+ side up). Press the button — the LED lights; release — it goes out. If it stays dark, check that both button tabs are stitched into the line and that no threads are touching across the two sides.

Materials for this step:

CR2032 Coin Cell BatteryCR2032 Coin Cell Battery1 igice
5

Secure and use

Seal each knot with a dab of clear nail polish or fabric glue so it can't loosen. Sew the felt onto a bag, badge or costume — you've made a press-to-light patch.

Ibikoresho

7
Estimated Total
$53.00

Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

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