Need to know the time - accurately for your next project?

The code below allows your PIC to log into a network timeserver and it (eventually) writes the time to a Dallas RTC (code not supplied).
The PIC checks the NET TIME every power-up and thereafter every 4 hours. If it doesn't make connection, it tries an alternate time server. If THAT doesn't work (after retries) it gives up and tries again 4 hours later. A Lantronix XPort handles the connection to the net.
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This routine takes keyboard input, including backspaces, and processes them through a command parser. It converts all chars ...

Here is a fairly full-featured interrupt-driven I2C slave. ( The master part is easy).
This slave relies on the work ...