Skip to content

Files

Latest commit

prikhiprikhi
Fix Component Links for J2 & J3; Add Note That U2 is Machine-Holed
May 6, 2021
2319a83 · May 6, 2021

History

History
56 lines (42 loc) · 2.31 KB

CHANGELOG.md

File metadata and controls

56 lines (42 loc) · 2.31 KB

CHANGELOG

master

  • Fix machine-pin component for J2 and component/footprint mismatch for J3. The previous J2 component we linked to had pin diameters much too small to hook up to the DotStar strip. The previous J3 component had the solder pad for pin 1 on the right side of the footprint instead of the left side. To address this, we link to a 20-pin strip with proper pin widths & break them into the sizes & orientations necessary.
  • Move Jumper & Switch silkscreen labels to outside their footprints.
  • Switch the 0603 Capacitor footprints to a slightly more elongated version.
  • Shift the footprint of SW2 up so that it's courtyard does not intersect with J4's.
  • Ensure L1 silkscreen does not intersect with solder pads.
  • Fix footprint size of C2 by creating a new custom footprint.

v3.0.0

This version upgrades the prototyping board & through-hole components to a printable PCB design & SMD components. We've also bumped the oscillator crystal to 20Mhz to squeeze as much power out of the microcontroller as possible.

  • Add KiCAD PCB schematic with SMD components.

v2.0.0

This is actually a portable version that you can swing around. The electronics are constructed on a prototyping board so they are much more secure than the breadboard, and a voltage regulator has been added so we can run off of rechargable 7.4V Li-Ion batteries.

There is still no blade or hilt design though - swinging this around means attaching the LED & electronics to a piece of wood.

  • Document the electronics circuit design.
  • Add an example layout for a prototyping board along with a list of required components and a build guide.
  • Add power sub-circuit that uses a switching voltage regulator so the LEDs & microcontroller can run off of batteries.
  • Add 10, 1, & 0.1 uF decoupling capacitors to the microcontroller's power & ground lines.
  • Add a 16Mhz oscillator sub-circuit. This is only used if the microcontroller's fuses are set to use an external full-swing crystal.
  • Add a reset button & pads for an external button.
  • Add headers for programming & serial cables.
  • Add KiCAD project for schematic.

v1.0.0

The simplest way to start - connecting everything on a breadboard! This design uses a tactile switch, headers for connecting the DotStar cable, and Atmel ATmega168a microchip, and a 5V bench power supply.