Horizon Solderable Kit Build Guide

Horizon Solderable Kit Build Guide

Written By: skarrmann

Category: build guides - medium

Tags: 60%, ergo, kit

View Original Source

This guide is for Horizon PCBs.



CONTROLLERSTYLE or similar microcontroller1
Reset Switch1
MX Hotswap Sockets52
MX Switches52
MX Keycaps52




Orientation: Black bar facing downwards or towards the footprint indicator.

  1. Solder one pad. one pad - diode
  2. While holding diode with tweezers, reflow solder and place diode down on pad. diode placed
  3. Solder other pad. diode complete
  • Note, when working with MELF package diodes, you may need to reflow and add more solder a couple times before an adequate connection is made.

Hotswap sockets

  1. Solder one pad. Hot swap socket foot print soldered
  2. While holding hotswap socket (fingers are fine), reflow solder and place socket down on pad. Hot swap socket one pin soldered
  3. Solder other pad. Hot swap socket finished
  • Note, don't hesitate to use a little extra solder, as that will help secure the socket and prevent it from being ripped off.


Orientation: Both microcontrollers CONTROLLERPLACEMENT.

  • Note, it is recommended to flash each microcontroller prior to soldering. See firmware section for more.
  1. Insert headers from front, solder in from the back. headers inserted
  2. Place microcontroller CONTROLLERPLACEMENT. microcontroller placed
  3. Apply solder to all pins.
  4. Use flush cutters or similar to trim excess from pins on each side. microcontroller finished


Reset switches

  1. Solder one pad. reset switch placed
  2. While holding switch with tweezers, reflow solder and place switch down on pad.
  3. Solder remaining pads. reset switch placed



In qmk this keyboard can be found under QMKHorizon. To begin, follow the QMK setup guide. (if working from an existing installation, an update may be needed.)
For flashing instructions, see doc or video


In Peg or KMK this keyboard can be found under KMKHorizon

Peg can be downloaded here, and the quick start can be seen here.

For Kmk can be downloaded here and the quick start can be seen here


For questions, ask in Boardsource Discord server