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Project:AlarmClock: Difference between revisions
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== Ways of determining the current time == | == Ways of determining the current time == | ||
* NPL (was MSF) radio signal. Symtrik module is the popular option, available from [[http://www.pvelectronics.co.uk/index.php?main_page=product_info&cPath=9&products_id=2 PV Electronics]]. This is very simple to decode, but the Symtrik module is very sensitive to supply voltage and I haven't been able to get this working from the mains yet. | * NPL (was MSF) radio signal. Symtrik module is the popular option, available from [[http://www.pvelectronics.co.uk/index.php?main_page=product_info&cPath=9&products_id=2 PV Electronics]]. This is very simple to decode, but the Symtrik module is very sensitive to supply voltage and I haven't been able to get this working from the mains yet. | ||
* DAB. The Venice 5 module is | * DAB. The Venice 5 module is commonly cited, but not generally available (forums recommend buying cheap complete DAB radios and breaking them apart). See Elliot's section below. If this can be made to work, it has the obvious bonus of better radio stations. | ||
* GSM. No idea if this can be done cheaply enough. | * GSM. No idea if this can be done cheaply enough. | ||
* GPS. Receivers can be bought cheaply, but require an outdoor or close to outdoor antenna. | * GPS. Receivers can be bought cheaply, but require an outdoor or close to outdoor antenna. | ||
