Project Logs

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• The new revision

  Sergei Silnov • 07/03/2021 at 11:24 • 0 comments

  Look at these little babies: esp32-c3-mini: riscv core wifi+bt and a bunch of security features. This module is the heart of the new revision for volumetric one led strip controller

• Source. Open source

  Sergei Silnov • 12/03/2020 at 21:51 • 0 comments

  Source is open now.

  • Firmware, still pretty basic https://github.com/volumetric-one/stripper
  • Hardware, in Fusion 360 format. Both case and PCB projects https://github.com/volumetric-one/led-stripe-2ch-hw 

• More boards

  Sergei Silnov • 11/26/2020 at 08:50 • 0 comments

  More boards are ready and tested.  Will list them on tindie.com by the end of the week 

• That's the case

  Sergei Silnov • 11/23/2020 at 10:50 • 0 comments

  The controller has a case now. It's 3d printed with two colors to highlight connectors pinouts. Lines also emphasize two buttons on the top surface.

  The button's connector on the side is labeled too.
  

  Simple rounded corners don't look in all lighting conditions because of curvature between the circle part and flat side jerks. And the way to the perfect shape is long. Here I used Bezier curves that make curvature smoother.

  The case and accent color may vary.
  

• First completed board

  Sergei Silnov • 11/20/2020 at 22:08 • 0 comments

  First board hardware is finished and it works in full range of voltages from 5V to 24V. On the picture it's loaded with 100W load at 24V.

• It works.

  Sergei Silnov • 11/17/2020 at 23:06 • 0 comments

  Components required for DC-DC and support of 24 volts are not delivered yet. But everything else is here and I baked first couple boards.  Blue wire is a temporary shortcut to make tests possible.

  Board stays cool when loaded for 7A (85W). For brightness regulation I use LEDC peripheral of ESP32. It can handle 512 levels for smooth level changes. Base frequency is 80KHz and noise is inaudible for humans.

• Boards and case

  Sergei Silnov • 11/16/2020 at 11:48 • 0 comments

  Boards were delivered today and look good so far. Components are still on the way, so first boards for the tests will be by the end of the week.

  At the same time first version of the case was made and it  fits well without any screws.

• First batch is sent to production

  Sergei Silnov • 11/12/2020 at 14:41 • 0 comments

  The board was sent to production at JLCPCB and components were ordered. This batch is designed to use both components sourced in China, like XL1509 DC-DC converter and western ones, like MIC4127 MOSFET driver. 
  

  Depending on how successful will be this initial design after first tests, up to 30 board will be produced in this batch. Do you want one to try?

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