E-Tech

Hot-swappable PCB (Printed Circuit Board) is a design that facilitates the easier replacement of mechanical keyboard switches, allowing users to adjust keyboard configurations more conveniently. This article will explore the differences between hot-swappable PCBs and traditional soldered PCBs.

For individuals planning to create a mechanical keyboard, one formidable task is soldering the switches. However, the introduction of hot-swappable PCBs provides a convenient solution to this challenge. The PCB, or Printed Circuit Board, serves as the core component of a keyboard, with mechanical switches connected to the PCB through two main methods.

One method involves soldering the PCB, using soldering tools and solder to connect the switch to the PCB by threading the switch pins through the holes on the PCB and melting the solder. While this method securely fixes the switch, it requires caution during execution, as the solder may potentially damage the PCB socket and break the switch pins.

The alternative, simpler method employs a hot-swappable PCB to install the switch, eliminating the need for soldering tools and solder. This approach is akin to installing PC components or Lego blocks, where the switch pins are pushed into pre-installed sockets. The hot-swappable design offers advantages such as easy operation, no requirement for professional training, and effortless switch replacement.

An example of a product featuring a hot-swappable PCB is the Modular Mechanical Keyboard (GMMK), providing convenience for users seeking a straightforward, intuitive, and customizable keyboard experience.

When installing switches on a hot-swappable PCB, it is advisable to press them carefully on a soft surface to reduce the risk of pin bending. Similarly, when removing keys, caution is necessary to avoid causing fatal damage to the sockets.

It's important to note that while it is theoretically possible to convert a soldered PCB to a hot-swappable PCB, this process also requires the use of soldering tools, presenting challenges for novice users.

Advanced Reading: How to Build Your Own Keyboard PCB