Arduino LilyPad ATmega328P Compatible Board

The Arduino LilyPad ATmega328P Compatible Board is a 50mm circular wearable microcontroller board built around the ATmega328P chip, designed specifically for integration into fabric and textile-based electronics projects. The board operates between 2.7V and 5.5V and carries 14 digital I/O pins, 6 PWM outputs, 6 analog inputs, 16KB flash, 1KB SRAM, and 512 bytes of EEPROM. Unlike standard rectangular Arduino boards, the lilypad arduino board uses large sewable pads around its circular perimeter — these pads accept conductive thread, allowing the board to be sewn directly into garments without any solder wires.

Programming requires a separate FTDI USB-to-TTL programmer connected to the programming header on the board. There is no onboard USB chip — the Arduino Lilypad board is designed for deployment in finished wearable projects where in-circuit reprogramming via serial is handled over the FTDI connection. The 2.7V minimum operating voltage means it can run from a single LiPo cell or two AA batteries, both common power sources in wearable electronics builds. One trade-off: the 16KB flash is significantly smaller than the 32KB on Arduino Nano or Pro Mini — complex sketches with multiple sensor libraries may exceed storage capacity on this board.

The non-obvious design detail is the lilypad atmega328p pinout spacing — the large circular pads are intentionally spaced to prevent conductive thread from bridging adjacent connections during use, which is a failure mode unique to e-textile circuits that standard boards do not address. The arduino lilypad projects community in India covers LED wearables, musical jackets, smart gloves, and interactive costume builds.

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Features:

• 50mm circular form factor integrates directly into textile and fabric builds
• Large sewable pads accept conductive thread without soldering wire connections
• 2.7V to 5.5V supply range works with LiPo and AA battery power
• ATmega328P provides 16KB flash and 6 analog inputs for sensor builds
• Thin low-profile board minimises bulk when worn or embedded in clothing

Technical Specifications:

 Applications:

• Arduino LilyPad ATmega328P Board used for LED wearable costume project
• Smart glove uses lilypad arduino board with flex sensors for gesture detection
• Musical jacket uses arduino lilypad projects for fabric button sound trigger
• College wearable project uses arduino Lilypad board for textile sensor demo
• Wearable health monitor uses atmega328p microcontroller lilypad for pulse sensing

Package Includes:

• 1 × Arduino LilyPad ATmega328P Compatible Board