Full clock kit build.
Added 2019-01-22 16:18:02 +0000 UTCIt's a while since I've built a kit.
https://www.youtube.com/watch?v=BOgddrIXNkY
This kit is reported to have timekeeping issues, which is odd, since it uses a real time clock chip. I'll get a battery for it and test it.
The resistors are all 10K, so nothing to do with the display, which seems to be driven directly by the chip relying on output impedance to limit current. I'd guess the resistors are mainly for pull-up, transistor base and perhaps thermocouple bridge reasons.
The thermistor does seem to display a reasonably usable temperature display once it has settled to ambient temperature.
Best feature with this clock so far is that you can make it just display the time on its own.
Comments
Geekcreit make a few things as well.
Neil Tonks
2019-01-26 18:52:29 +0000 UTCHey Clive, I wonder if you would consider putting together a list of recommended electronics kits? Looking at eBay seems to be a crapshoot (as in this case) and I've made everything they have at Spikenzielabs...
2019-01-26 02:41:49 +0000 UTCBigClive, you mentioned your TS-100 soldering iron. (Or soddering for the yanks.) I have noticed that there is a new version of the TS-100 out!
Bo Holbo Rasmussen
2019-01-24 22:06:53 +0000 UTCI build a clock kit (one of the ones with the 7 segment displays in the middle, and a ring of LEDs around the outside) about 2 months ago which has gained 6 minutes in that time. It's also got a real time clock chip in it, which saves the time when power is removed. Thought it might only be reading the RTC when powered on, but it seems to remember the wrong time as well.
2019-01-24 19:22:15 +0000 UTCAre you trolling for our ages? Oh wait you're joking, sorry.
Aaron Nadler
2019-01-23 10:55:14 +0000 UTCYou won’t live past 30 if you keep using that Lead based solder!!1!
Lostngone
2019-01-23 03:54:57 +0000 UTCthese type of videos are my favorite...THANXsss
2019-01-23 02:15:40 +0000 UTCThis looks very hackable. I keep thinking about leaving off the micro-controller provided and replacing it with some sort of adapter for something Arduino or ESP32. You know, if you could hook up an ESP32, it could pull NTP time and *always* be accurate. Or, accurate as long as it has wifi and internet connectivity. ;)
Benjamin Hall
2019-01-23 00:51:16 +0000 UTCIt makes an appearance at around 38:40 in this clock build video from early 2017.
2019-01-23 00:42:47 +0000 UTCI come here for the "Oh no! It's all gone horribly wrong!" I leave fulfilled.
2019-01-23 00:23:30 +0000 UTCAm I Deja-Vuing hard here, or did you build one of these before?? I've seen that chip lead former before.
mikenco
2019-01-22 23:59:14 +0000 UTCIf it comes on again with a minute value over 60, it would be interesting to see how high it counts. Around 20 years ago, my brother had a watch that somehow ended up with the minute in the 70s and after it counted to 99, it showed something like E0 and got stuck until he reset it.
Seán Byrne
2019-01-22 23:21:48 +0000 UTCInternet is full of stories about fake DS1307s (and fake RTCs in general), but some of that might just be crap PCB design. There are plenty of ways to make the real ones misbehave: <a href="https://www.maximintegrated.com/en/app-notes/index.mvp/id/58" rel="nofollow noopener" target="_blank">https://www.maximintegrated.com/en/app-notes/index.mvp/id/58</a> (see the fast/slow clock sections for some ways to mess things up).
2019-01-22 20:43:21 +0000 UTCThis ones going to have to wait till the weekend. Looking forward to it
Neil Tonks
2019-01-22 20:33:02 +0000 UTCYeah builds are awesome! Fixes are better! Please do follow up on this one!
Michael Thompson
2019-01-22 18:14:17 +0000 UTCExcellent, love a kit build 🕰️
John Russell
2019-01-22 17:47:39 +0000 UTCI love a nice, long, rambling kit build. 👍🏻
2019-01-22 17:20:55 +0000 UTCWhatever you are on, I want some... Love it.
Demolished Man
2019-01-22 17:18:46 +0000 UTC
