
Blinking an LED with LilyPad Arduino
Step up from a plain sewn circuit to a sewable computer. The LilyPad Arduino is a washable microcontroller you program from your PC, then run on a coin cell — so your fabric can blink, fade and react on its own. This project sews an LED to the board and uploads the classic 'blink' sketch: the gateway to every sensor-driven wearable that follows.
ការណែនាំ
Sew the LilyPad Arduino and an LED
Sew the LilyPad Arduino and an LED
Sew a LilyPad Arduino Simple board and a LilyPad LED onto felt with conductive thread: the LED's + tab to numbered pin 5, and the LED's - tab to the board's - tab. Loop 3–4 times through each hole, trim tails, and keep the two lines from crossing.
Materials for this step:
LilyPad Arduino Simple Board1 piece
LilyPad LED - 5 pcs1 pack
Conductive Thread - 60g (Stainless Steel)1 spool
Hand Sewing Needles (Assorted, 30-Pack)1 pack
Wool Felt Sheet1 sheetConnect the FTDI programmer
Connect the FTDI programmer
Plug a LilyPad FTDI Basic Breakout onto the board's 6-pin programming header (line up GND to GND, DTR to DTR) and connect it to your computer with a USB cable. Install the free Arduino IDE, then choose the LilyPad Arduino board and the FTDI's serial port under Tools.
Materials for this step:
LilyPad FTDI Basic Breakout - 5V1 piece
SparkFun Cerberus USB Cable - 1.8 meter1 pieceTools needed:
Computer with Arduino IDEUpload the blink sketch
Upload the blink sketch
Paste this sketch into the Arduino IDE and click Upload. It flashes the LED on pin 5 on and off twice a second.
Go wireless on a coin cell
Go wireless on a coin cell
Unplug the FTDI. Sew a LilyPad coin-cell battery holder to the board — + tab to +, - tab to - — and drop in a CR2032. Switch it on and the LED blinks on its own, no computer attached. Your fabric now runs its own program.
Materials for this step:
LilyPad Coin Cell Battery Holder - w/Switch - 20mm1 piece
CR2032 Coin Cell Battery1 pieceExperiment
Experiment
Re-attach the FTDI and change the sketch: adjust the delays for a heartbeat rhythm, or sew a second LED to another pin and blink them in turn. This is the base every LilyPad sensor project builds on.
សម្ភារៈ
9- 1 piece$20.00
- 1 pack$5.00
- $40.00
- កន្លែងទុក
- 1 sheetកន្លែងទុក
- $14.00
- $6.00
- 1 pieceកន្លែងទុក
ឧបករណ៍ចាំបាច់
1- កន្លែងទុក
ប្លង់ពាក់ព័ន្ធ
ប្លង់ទាំងនេះចែករំលែកចំណេះដឹង — បច្ចេកទេស សម្ភារៈ ឬគោលការណ៍
Related blueprints
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