4 ms·

Cool project and kudos to them for working through the necessary math to calculate sunrise and sunset. You can see a few more pictures on the "Shop" page [0].

Cool project and kudos to them for working through the necessary math to calculate sunrise and sunset. You can see a few more pictures on the "Shop" page [0]. They are hidden behind the "View product"-button. I've extracted a few links and modified them to link to larger images [1-3]. The power supply is connected via a barrel connector as can be seen in image [3]. I guess I would have used a USB power supply instead, just because of their ubiquity. [0] https://jmw.name/shop/ https://jmw.name/shop/ [1] https://cdn.shopify.com/s/files/1/0557/1513/5639/products/linear-clock-front-left.jpg https://cdn.shopify.com/s/files/1/0557/1513/5639/products/li... [2] https://cdn.shopify.com/s/files/1/0557/1513/5639/products/linear-clock-front-right.jpg https://cdn.shopify.com/s/files/1/0557/1513/5639/products/li... [3] https://cdn.shopify.com/s/files/1/0557/1513/5639/products/linear-clock-rear-right.jpg https://cdn.shopify.com/s/files/1/0557/1513/5639/products/li...

imoverclocked 5y ago
Or a small solar cell?
jmwilson 5y ago
I actually used a USB connector on the previous Nixie-tube based version. It's harder since there aren't as many panel-mount options for the USB connector. You have to design the circuit board around abutting the enclosure wall. This makes sense in an injection molded or unibody construction, but less so with a wood box like this. You're also potentially limited by the USB spec on current draw. There are ways around this, like ICs that will detect if you're connected to a charger or a data port. The barrel connector is also quite ubiquitous and I designed the power entry to work across a wide range of DC power adapter voltages.
- _Microft 5y ago
  Thanks for the explanation, that makes sense. I have also discovered the previous version now ([0], if someone else is curious as well) and will have a look at it later. [0] https://github.com/jmwilson/leave-time-behind https://github.com/jmwilson/leave-time-behind

imoverclocked 5y ago

Or a small solar cell?

jmwilson 5y ago

I actually used a USB connector on the previous Nixie-tube based version. It's harder since there aren't as many panel-mount options for the USB connector. You have to design the circuit board around abutting the enclosure wall. This makes sense in an injection molded or unibody construction, but less so with a wood box like this. You're also potentially limited by the USB spec on current draw. There are ways around this, like ICs that will detect if you're connected to a charger or a data port. The barrel connector is also quite ubiquitous and I designed the power entry to work across a wide range of DC power adapter voltages.

_Microft 5y ago
Thanks for the explanation, that makes sense. I have also discovered the previous version now ([0], if someone else is curious as well) and will have a look at it later. [0] https://github.com/jmwilson/leave-time-behind https://github.com/jmwilson/leave-time-behind