03-15-2016, 09:36 PM
As I understand it, the wifi card with i2c is based on the ESP8266 chipset. I don't know how much these things are programmable or whether you've programmed them before, but you can get DS3231 real time clocks (i2c based) for under $5 from US vendors (and of course cheaper from China vendors). You could sync up the clock on a pine64, and move it over to the wifi (with the battery to keep the time running), and then the ESP8266 can poll the rtc to find out what time it is.
Alternatively, since the ESP8266 is wifi based, I imagine you could sync clocks via the internet such as with this Arduino example (http://www.instructables.com/id/Arduino-...me-Client/).
You could also plug in a gps, but I suspect either of the above methods of keeping time will be sufficient.
Alternatively, since the ESP8266 is wifi based, I imagine you could sync clocks via the internet such as with this Arduino example (http://www.instructables.com/id/Arduino-...me-Client/).
You could also plug in a gps, but I suspect either of the above methods of keeping time will be sufficient.