author
1Instructables5,893Views12CommentsJoined April 30th, 2019

Tell us about yourself!

Complete Your Profile

Achievements

  • pakue commented on pakue's instructable Vacuum Fluorescent Display Watch2 months ago
    Vacuum Fluorescent Display Watch

    Great! I think the NTP server always just return the UTC time and the offset is calculated via the string, so the server shouldn't matter much. The latency may however be better if you choose one closer to you.

    No worries, it's easy to compile it with the Arduino IDE.All you need are the files in the Code/src folder. The contents of the 'main.cpp' is what you paste in your Arduino project. The remaining files go in your Arduino library folder within a folder called "Vfd_Display". The 'Password_example.h' is a template for your Wifi credentials, that should be renamed to 'Password.h'. You probably have to install the 'Adafruit-MCP23017' and 'OneButton' library via the Arduino IDE as well, but then it should compile.Let me know if you have any issues.

    View Instructable »
  • pakue commented on pakue's instructable Vacuum Fluorescent Display Watch2 months ago
    Vacuum Fluorescent Display Watch

    Yes, the MP3120 will act as a linear regulator above Vcc input voltages. In the V1.0 I just had a voltage sense line from the battery directly to the ESP32 to check the battery level, but with a lithium cell at 4.2V this could have damaged the it. The V1.1 has a voltage divider to mitigate this. Just make sure to get a 14500 cell with build in protection as the circuit would drain the battery below its minimum charge voltage.

    Nice! Looking forward to yours!

    View Instructable »
  • pakue commented on pakue's instructable Vacuum Fluorescent Display Watch2 months ago
    Vacuum Fluorescent Display Watch

    Thanks!The holder is from this store here:https://shop.3dservisas.eu/collections/tools/products/multifunctional-pcb-holding-jig?variant=4510939906075

    View Instructable »
  • pakue commented on pakue's instructable Vacuum Fluorescent Display Watch2 months ago
    Vacuum Fluorescent Display Watch

    No worries, I'm happy to help.The RS-274 format is an older version for gerbers and the other one is the X2 version. Someone asked for them a couple days ago. Both should work with most manufacturers.Yeah, the comment can't hurt, JLCPCB usually asks again if something is unclear. If you order via Oshpark you can also upload the '.kicad_pcb' file directly and it will convert it.

    View Instructable »
  • pakue's instructable Vacuum Fluorescent Display Watch's weekly stats: 2 months ago
    • Vacuum Fluorescent Display Watch
      3,483 views
      41 favorites
      18 comments
  • pakue commented on pakue's instructable Vacuum Fluorescent Display Watch2 months ago
    Vacuum Fluorescent Display Watch

    Thanks! Yes the battery runtime is very short on an alkaline cell as the VFD need quite a bit of power. The design also works with a 14500 lithium cell (just keep in mind to use one with build in protection circuit) for 6-8 hours if the display is constantly on. If everything is in deep sleep the battery lasts more than a month as far as I can tell. But you can also power it through USB as long as there is no battery installed.

    Not that I’m aware of, but it looks very good. Will have a read through it, thanks!

    I'm glad you like it! That's why I made I open source. If you need any help or more details let me know and I'll try to help.Yes, the strap holes were supposed to be routed out, but I didn't follow up on them as I wanted to get the boards done for a conference. I guess one needs to tell the PCB house that the slots should be plated and (at least for JLCPCB) they need to be marked on the edge cuts layer, which I didn't do. I updated the design and gerbers just now, but I'd suggest you add that you want slot plating in the comment section of your order too.The boards in the pictures were gold plated, ENIG-RoHS is the option for that. They are also with a glossy black solder mask, however JLCPCB recently changed the black color option to a matt finish (looks also fancy imo). Most component...

    see more »

    I'm glad you like it! That's why I made I open source. If you need any help or more details let me know and I'll try to help.Yes, the strap holes were supposed to be routed out, but I didn't follow up on them as I wanted to get the boards done for a conference. I guess one needs to tell the PCB house that the slots should be plated and (at least for JLCPCB) they need to be marked on the edge cuts layer, which I didn't do. I updated the design and gerbers just now, but I'd suggest you add that you want slot plating in the comment section of your order too.The boards in the pictures were gold plated, ENIG-RoHS is the option for that. They are also with a glossy black solder mask, however JLCPCB recently changed the black color option to a matt finish (looks also fancy imo). Most components were sourced from Arrow.com and lcsc.com in case you don't find everything on Mouser.Good luck!

    View Instructable »
  • pakue commented on pakue's instructable Vacuum Fluorescent Display Watch2 months ago
    Vacuum Fluorescent Display Watch

    It just needs a watch band, but I haven't gotten around to making one yet.Ideally I'd like to make it also from leather.

    View Instructable »
  • pakue entered Vacuum Fluorescent Display Watch in the Arduino Contest 2019 contest 2 months ago