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Making a Sound-Triggered LilyPad Patch
Ed

Créé par

Ed

13. juillet 2026FI
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Making a Sound-Triggered LilyPad Patch

Sew a patch that plays sounds when you touch it. The LilyPad MP3 is a tiny music player — it reads MP3 files from a memory card and plays them through a speaker when you touch conductive-fabric pads wired to its trigger inputs. Make a talking toy, a musical costume, or a sound-effects badge.

Intermédiaire
1-2 hours

Consignes

1

Load the sounds onto a memory card

Copy your MP3 files onto a microSD card and name each so it BEGINS with its trigger number 1–5 — for example 1-chime.mp3 plays on trigger 1, 2-bark.mp3 on trigger 2. Slide the card into the LilyPad MP3's card slot.

Matériaux pour cette étape :

LilyPad MP3LilyPad MP31 pièce
Kingston Flash Memory - 8GB microSDKingston Flash Memory - 8GB microSD1 pièce
2

Sew the touch pads and speaker

Sew the LilyPad MP3 onto felt. Stitch a conductive-thread pad out to each trigger tab (T1–T5) and one more pad to a - (ground) tab. Connect the flexible speaker to the board's audio output. Keep the trigger pads from touching each other or the ground pad.

Matériaux pour cette étape :

Flexible Speaker and Amplifier - 13x18cmFlexible Speaker and Amplifier - 13x18cm1 pièce
Conductive Thread - 60g (Stainless Steel)Conductive Thread - 60g (Stainless Steel)1 bobine
Hand Sewing Needles (Assorted, 30-Pack)Hand Sewing Needles (Assorted, 30-Pack)1 paquet
Wool Felt SheetWool Felt Sheet1 feuille
3

Power it with a LiPo

Plug a 3.7 V LiPo battery into the LilyPad MP3's JST connector and switch it on. The board recharges the same battery whenever it's plugged into USB, so it stays wearable.

Matériaux pour cette étape :

LiPo Battery 3.7V 1000mAh (JST Connector)LiPo Battery 3.7V 1000mAh (JST Connector)1 pièce
4

Touch to play

Touch a trigger pad and the ground pad at the same time — your finger bridges them and the matching sound plays through the speaker. Each pad plays its own file.

5

Customize

Swap the MP3 files on the card for your own sounds any time. For playlists, volume control or sound-plus-light effects, reprogram the board in the Arduino IDE with the SparkFun LilyPad MP3 library.

Matériaux

7
Total estimé
€118.00

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