LilyPad Arduino 328 Main Board with ATmega328 for Wearable E-Textile Projects

The LilyPad Arduino 328 is a wearable microcontroller board designed specifically for e-textile and fabric-based electronics projects. Unlike standard Arduino boards with rigid pin headers, this sewable microcontroller features large, rounded connection pads that can be stitched directly to conductive thread, allowing sensors, LEDs, and power supplies to be integrated into clothing without soldering. The board is built around the ATmega328 microcontroller running at 8 MHz with the Arduino bootloader pre-installed, so it can be programmed through the standard Arduino IDE using the Arduino Pro Mini 328/8MHz setting. With 14 digital I/O pins (6 of which support PWM), 6 analog inputs, 16 KB of flash memory, 1 KB of SRAM, and 512 bytes of EEPROM, this LilyPad main board offers the same computational capability as a classic Arduino in a form factor tailored for soft circuits. The operating voltage range of 2.7V to 5.5V accommodates coin-cell and lithium-polymer battery packs commonly used in wearable designs. Measuring 50 mm in diameter with a 0.8 mm thin PCB, the board is lightweight and has a flat back side that reduces snagging when sewn into garments. It is also washable after removing the power source, making it suitable for interactive costumes, smart athletic wear, and decorative illuminated clothing. This wearable Arduino board is a practical choice for makers who want to combine programming with textiles and create projects that move, light up, and respond to their environment.