This article described how to build a different type of clock –
using the “lilypad” style of
Arduino-compatible board and components designed for use in e-textiles and wearable electronics. The main circular board in the Arduino-type board which contains an
ATmega328 microcontroller, some
I/O pins, a
header for an FTDI-USB converter and a Li-Ion
battery charger/connector. As an aside, this package is a good start – as well as the mainboard you receive the FTDI
USB converter, five white
LEDs,
a buzzer,
vibration module,
RGB LED, a
switch,
temperature sensor, and light sensor.