Put me down for two of the TIMEHATs. Sounds exciting! Rick
On Sat, May 1, 2021, at 9:10 AM, Bill Notfaded wrote: > I'd be interested in 2 too. > > Bill > > On Wed, Apr 28, 2021, 4:10 AM Michael Gindonis <[email protected]> > wrote: > > > I would be interested in at least one, perhaps even 2. and perhaps bare > > boards. > > > > Some things that if not already considered, could make it more interesting > > than it already is: > > > > - possibility to have a 26 pin connector instead of the 40 pin connector > > would be nice for use on Pi 1B. ( or just an option for unsoldered > > connector and one can solder it oneself.) > > - bare board.... with breakout connections for RTC and GPS modules, a > > CR2032 holder... this could make the bare board handy as time-nut oriented > > protoboard to use with other modules. > > - extra pads opposite GPIO side of board to mount a couple extra SMA > > connectors. ( using proto space one could add one a buffered PPS out or > > other timepulse out ) > > - MAX-M8W with active antenna out. > > > > I have been lurking on this list for a while. A minor upgrade to my low > > budget ntp server is long overdue. Have used Aliexpress RTC modules with > > the Pi ( with modifications to use a CR2032 safely). I have also had a few > > Pis running with nearly 20 year old surplus fastrax GPS modules which > > include a patch antenna. Just a protoboard, jumpers, sometimes a backup > > battery and some DIP switches for setting modes. I had started a GPS board > > design in KiCAD a while ago but got bogged down when trying to layout the > > traces for the antenna connector according to the module manufacturer's > > recommendations. > > > > At the moment I just one running GPS ntp server on an old Pi 1B. The module > > I use works well most of the day. Having a patch and no external antenna > > connector the whole module must be exposed to sunlight. The module doesn't > > adjust it's TXCO offset if it doesn't have a GPS fix so it may drift a bit > > on sunny days. > > > > Name/IP Address NP NR Span Frequency Freq Skew Offset Std > > Dev > > > > ============================================================================== > > NMEA 8 7 224 -17.321 8.039 +55ms > > 238us > > PPS 61 36 240 -0.000 0.003 -0ns > > 414ns > > ftp.mikes.fi 19 13 310m -0.050 0.010 +1718us > > 64us > > ntp.netnod.se 15 9 241m -0.046 0.044 +1596us > > 183us > > time.cloudflare.com 49 26 13h -0.099 0.013 +2935us > > 372us > > ivanova.ganneff.de 14 9 224m -0.045 0.025 +3083us > > 79us > > > > Best regards... > > > > ...Mike > > --- > > Michael Gindonis > > > > > > > > On Mon, Apr 26, 2021 at 7:58 PM John Miller via time-nuts < > > [email protected]> wrote: > > > > > Hello everyone, > > > > > > I’ve seen a number of messages lately that reference the TimeHat boards I > > > put together a couple of months ago, with lots of positive feedback, > > which > > > I really appreciate. The first run of boards I did sold fairly quickly, > > and > > > based on a number of emails I have gotten lately there seems to be some > > > renewed interest. > > > > > > As such, I’m going to order up another batch of PCBs and parts, but I’d > > > like to get an idea of how many I need to order to satisfy current > > demand. > > > The GPS modules come from China, so there is about a two or three week > > wait > > > them, so I want to make sure I have enough. > > > > > > For those not familiar, you can learn more about the TimeHat here: > > > https://millerjs.org/timehat > > > > > > Regards, > > > John > > > _______________________________________________ > > > time-nuts mailing list -- [email protected] -- To unsubscribe > > send > > > an email to [email protected] > > > To unsubscribe, go to and follow the instructions there. > > _______________________________________________ > > time-nuts mailing list -- [email protected] -- To unsubscribe send > > an email to [email protected] > > To unsubscribe, go to and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] -- To unsubscribe > send an email to [email protected] > To unsubscribe, go to and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
