[Pete] wondered how real-time clock modules could be selling on eBay for $1.50 when the main component, the Maxim DS3231 RTC/TCXO chip, cost him more like $4 apiece. Could the cheap modules contain ...

A man named [Jim Valvano] once said “There are 86,400 seconds in a day. It’s up to you to decide what to do with them.” — while we couldn’t tell you who [Jim Valvano] was without a google search*, his ...

The DS3231M is a low-cost, extremely accurate, I2C real-time clock (RTC). The device incorporates a battery input and maintains accurate timekeeping when main power to the device is interrupted. The ...

Raspberry Pi enthusiasts may be interested in a new open source USB Raspberry Pi RTC offering a MCP2221 USB-I2C Converter, DS3231 High-Precision RTC Chip, TCXO, integrated temperature sensor as well ...