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Published on - 26th September 2011 04:29
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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NE555 with solenoid
I'd like to activate a solenoid for a brief moment. Does this timer look correct?
Demon Today, 01:389978
- I added a large cap alongside the solenoid; value is just preliminary.
- the opto is to isolate the...