The LilyTiny is small LilyPad control board with an ATtiny85 microcontroller. It has firmware already installed to make LEDs flash in fun ways without needing to program a thing. Simply use conductive thread to sew on four LEDs and connect a battery; each LED will blink or fade differently.
LED 0 will do a "breathing" fade. LED 1 will flash in a heartbeat pattern. LED 2 will blink on and off. LED 3 will do a random fade. You can connect multiple LEDs in parallel to the same pin to have more than one LED perform the same action.
The LilyTiny board has a diameter of 20mm. The PCB thickness is just 0.8mm.
If you want to re-program the LilyTiny, the ICSP programming signals are broken out on the back. Using the ISP Pogo Pin Adapter Kit will allow you (in combination with your AVR programmer) to re-program the LilyTiny without having to install pins on it.
LilyPad Overview LilyPad is a wearable e-textile technology developed by Leah Buechley. Each LilyPad is designed to have large connecting pads to allow them to be sewn into clothing. Various input, output, power, and sensor boards are available.
See our LilyPad category to find more LilyPad components and conductive thread you can use to sew a circuit into clothing.
LilyTiny Board Resources
Recommended Parts to use LilyTiny If you know what you're doing, you can use loose LEDs and an existing power source. If you prefer the easy route that's sure to work if you sew everything correctly, here are some items to consider:
- Any of these Coin Cell Battery Holders and a CR2032 Battery.
- Any four LilyPad LEDs (the Micro type have no resistor but are OK to use with the CR2032 battery).
- Any spool of conductive thread.
- If you don't use the battery holder with a built-in switch, you can add the LilyPad Switch Board to your circuit.
- For an all-in-one package of LilyTiny accessories, get the LilyPad ProtoSnap Kit which includes sewing needles in addition to a bobbin of conductive thread, a battery, a battery holder board, five white-LED boards, a power switch board, a button board, and a piece of cloth to practice on before you add the LilyTiny.