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Published on - 26th September 2011 05:29
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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Re: I2CWRITE/I2CREAD access hardware in the different way? (PCA9685 issues)
You should probably leave them as inputs.
tumbleweed Today, 17:39The I2C commands will change them from inputs to outputs as required to simulate an open-collector signal (high=input, low=output 0).
It would...