My minimalistic version of LCD clock:
small Arduino Pro Mini + I2C/TWI LCD backpack + LCD1602 + ultra small High Precision Real Time Clock for Raspberry Pi
also I use
FTDI Breakout Reloaded
In its final form I plan to use this housing:
LinkSprite Clear Enclosure
LCD_16x2_BackPack_v003.ino (7.23 KB)