Parts: I2C real-time clock calendar (PCF8563)
The PCF8563 is a real-time clock/calendar/alarm chip with an I2C interface. This would be useful in projects where the primary microcontroller doesn’t have enough resources for an interrupt driven clock.
We demonstrate the PCF8563 using the Bus Pirate after the break. For a limited time you can get your own Bus Pirate, fully assembled and shipped worldwide, for only $30.
PCF8563 real-time clock calendar (Octopart search, $1.33). Datasheet (PDF).
The schematic above shows a bare-bones circuit for the PCF8563. It requires a simple external oscillator circuit with a…
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