James R. Gorr wrote: > http://dkc3.digikey.com/PDF/T091/P0529.pdf > > > When I look at the catalogue, the description says: > >> | UTC Receiver Module, 60kHz, no CPU | 561-1014-ND | 10.70 | CMMR-6P-60 | > > I have looked at modules like this before but what I saw was much more > expensive. So I'd like to get one at < $11.00. Have you been able to RX > WWVB with it (even if you haven't written anything to decode it)? >
No, I haven't had time to make one work. It seems like a nice little package, but how useful and for what purposes I am not yet certain. My curiosity just got the better of me (again). The device produces a pulse train that encodes the WWV information. > I wonder what the no CPU means? That worried me too. I read the manufacturer's information and it seems that this is sometimes used with an Epson 4 bit CPU. But any CPU/MCU should be able to do the job. A small PIC or AVR should be able to handle it easily. I did a little experimentation with a small ARM7 module (ARMite from Coridium), but haven't had time to do anything useful. There is an article in the November '08 Circuit Cellar Magazine that uses this module with a Freescale DEMO9S08QG8: Time Server Design: Synchronize with the WWVB Time Code Signal Honorable Mention WIZnet iEthernet 2007 Design Contest by Steven Nickels The article can be purchased at: http://www.circuitcellar.com/magazine/220.html The article gives some details of decoding, but I don't have Freescale tools and have a satisfactory (better) NTP server, so I won't duplicate it. I would like to know what others might do with this thing. Dave W. KD0EAG > > Jamie > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.