From the September 2015 issue of Nuts & Volts Magazine.
The Toadstool RTC-MCP CAP is part of a larger group of open source prototyping boards and breakout modules (called Caps). This family was designed to let you quickly and easily prototype your microcontroller-based projects. The Toadstool RTC-MCP is one of a selection of Caps compatible with the full range of Toadstool prototyping boards, and contains the MCP79400 RTC (real time clock) chip from Microchip 1 .
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