The DS3231 by Maxim is a "low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature compensated crystal oscillator (TCXO) and crystal." You can pick these up, battery and... read more →
I've got an I2C 16x2 display module for an Arduino project (the upcoming 'Arduino Giardino' Aerogarden clone). Instead of trying to manually find the I2C address, I discovered that a... read more →
Have you ever had a water leak that damaged your property? I know I did when a kitchen faucet started leaking. I decided to put together an Arduino based solution... read more →