https://fixme.ch/w/index.php?action=history&feed=atom&title=MobatimeClock 2026-04-24T19:52:10Z Revision history for this page on the wiki MediaWiki 1.25.1 https://fixme.ch/w/index.php?title=MobatimeClock&diff=13096&oldid=prev 2017-01-31T20:08:28Z

<p>code</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 20:08, 31 January 2017</td> </tr><tr><td colspan="2" class="diff-lineno" id="L16" >Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The clock resets to Fri, Jan 1st, 1988.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>The clock resets to Fri, Jan 1st, 1988.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[https://git.fixme.ch/fzn/MobatimeClock Here's the code, btw]</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Driving ==</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Driving ==</div></td></tr> </table>

Fzn https://fixme.ch/w/index.php?title=MobatimeClock&diff=13086&oldid=prev 2017-01-28T14:37:31Z

<p>Created page with &quot; == Overview == This clock is mains powered, shows date and time. Three buttons on the side allow setting values. However, similar to Swiss railways stations&#039; clocks, it won&#039;t...&quot;</p> <p><b>New page</b></p><div><br /> == Overview ==<br /> This clock is mains powered, shows date and time.<br /> Three buttons on the side allow setting values.<br /> However, similar to Swiss railways stations' clocks, it won't skip to the next minute unless it receives pulses.<br /> <br /> <br /> == Pulses ==<br /> <br /> According to available documentation, up to 30VDC can be fed between the two sync wires.<br /> It requires circa 1.7v to trigger, however.<br /> <br /> To get to the next minute, a 170ms (smaller durations lead to missed triggerings) pulse has to be sent, '''alternating polarity at each trigger'''<br /> <br /> == Trivia ==<br /> <br /> The clock resets to Fri, Jan 1st, 1988.<br /> <br /> == Driving ==<br /> <br /> Two digital outs of an Arduino Nano provide the pulses. It can be set to automagically wind up the clock to a target date/time.<br /> <br /> == TODO ==<br /> * post the code on gitlab<br /> * derive 5V from the 240V input, and embed the uC<br /> * rewrite with button debounce (there's currently a button to add minutes, given that it takes circa 170ms to jump by one minute) and / or factor in 'time taken winding the clock' in the target time computation<br /> * figure out more ergonomic ways to sync (currently requires uploading code)?</div>

Fzn