Converting Wired Keyboard to Wireless: 3 Easy Ways

Converting wired keyboard to wireless opens up clutter-free desks and greater portability. Today’s solutions range from plug-and-play adapters to DIY microcontroller projects. Whether you’re a casual typist or a competitive gamer, switching to a wireless setup can enhance comfort and flexibility.

Before you begin, understand that converting wired keyboard to wireless involves adding a communication bridge—typically Bluetooth or proprietary 2.4 GHz radio—between your existing keyboard internals and your computer. In this guide, we’ll explore three easy methods for converting wired keyboard to wireless, step by step, while weighing pros and cons so you can choose the best approach for your needs.

Why Consider Converting Wired Keyboard to Wireless?

Converting wired keyboard to wireless reduces cable clutter and frees up USB ports. A wireless keyboard also lets you position your device ergonomically, whether you’re on the couch, in bed or presenting in a conference room.

Wireless setups improve portability. If you travel with a mechanical or ergonomic keyboard, converting it to wireless avoids carrying extra adapters and cables. Plus, battery-powered keyboards can run for months between charges, thanks to low-power Bluetooth controllers.

Finally, converting wired keyboard to wireless can be cost-effective. Rather than buying a brand-new wireless model, reusing your favorite wired keyboard preserves keystroke feel and build quality while adding modern convenience.

3 Easy Ways to Convert Wired Keyboard to Wireless

Here are three proven approaches to converting wired keyboard to wireless. Each varies in complexity, cost and performance.

1. USB Bluetooth Adapter + DIY Cable Mod

One of the simplest methods for converting wired keyboard to wireless uses a small Bluetooth module—such as an HC-05 or HM-10—and a USB power source.

First, open your keyboard housing and identify the matrix PCB where the USB cable attaches. Locate the 5 V and ground lines for powering your Bluetooth module. Solder the module’s power wires to those pads.

Next, wire the module’s TX/RX pins to a microcontroller (e.g., Arduino Pro Mini) that reads keystrokes from the keyboard’s controller IC. Flash firmware—such as TMK or QMK—that supports Bluetooth HID profiles.

Finally, pair your newly wireless keyboard with your computer. This method yields true Bluetooth connectivity, low latency (depending on firmware) and uses your original keyboard battery or a USB power pack.

2. Raspberry Pi Zero W as a Bluetooth HID Proxy

If you’re comfortable with Linux, the Raspberry Pi Zero W offers a handy platform for converting wired keyboard to wireless without soldering tiny modules.

Begin by installing Raspberry Pi OS Lite on a microSD card. Connect your wired keyboard’s USB output to the Pi’s USB-OTG port via an adapter cable. Configure the Pi as a Bluetooth HID device by installing the bluez stack and setting up bluetoothd with input.conf to emulate a keyboard.

Run a Python script (or use existing tools like hidclient) to forward USB keyboard events to the Raspberry Pi’s Bluetooth interface. Once paired with your Mac, PC or tablet, the Pi relays keystrokes over Bluetooth. This approach is fully reversible—remove the Pi, and your keyboard remains wired.

3. Commercial Wireless Keyboard Converter Kits

For those seeking a plug-and-play option, several manufacturers offer wireless keyboard converter kits designed to convert any USB keyboard into a 2.4 GHz wireless device.

These kits typically include a small transceiver module that fits inside your keyboard and a matching USB dongle. Installing involves minimal soldering: attach the module’s power leads to the keyboard’s 5 V line and plug in the dongle. Pairing is automatic, and latency matches many off-the-shelf wireless keyboards.

While these kits cost around ₹1,500–₹2,500, they deliver reliable performance with minimal tinkering—ideal for users focused on converting wired keyboard to wireless quickly.

Step-by-Step Guide: Converting Wired Keyboard to Wireless

Follow these general steps regardless of your chosen method:

1. Gather Tools & Parts:
   • USB Bluetooth module or wireless kit
   • Soldering iron, solder, flux
   • Microcontroller (if needed) or Raspberry Pi Zero W
   • Insulating tape, wire strippers, tweezers
2. Disassemble Your Keyboard:
   • Remove keycaps and unscrew the housing.
   • Gently lift the PCB, noting cable connections.
   • Identify the USB 5 V and ground points for power.
3. Install Wireless Components:
   • Solder the power wires for your Bluetooth module or converter kit.
   • Connect data lines (TX/RX) if required by your method.
   • Secure modules inside the housing using double-sided tape.
4. Flash or Configure Firmware:
   • For Arduino/RPi methods, upload HID-capable firmware or set up BlueZ.
   • Test keystrokes via serial before closing the case.
5. Assemble and Pair:
   • Reassemble the keyboard housing carefully.
   • Plug in the USB dongle or enable Bluetooth pairing mode.
   • Pair the keyboard with your device and test all keys.
6. Optimize & Troubleshoot:
   • Adjust debounce settings or power-saving modes in firmware.
   • Ensure stable wireless range by minimizing RF interference.
   • Check for firmware updates or recalibrate if latency occurs.

Pros and Cons of Converting Wired Keyboard to Wireless

Pros

• Cost Savings: Reuse an existing keyboard.
• Customization: Maintain your preferred switch type and layout.
• Portability: Reduce cable clutter and gain roaming freedom.

Cons

• Complexity: Soldering and firmware flashing require skills.
• Battery Management: You must provide power—batteries or USB pack.
• Latency Variance: Some DIY methods can introduce input lag.

Balancing these factors helps you decide whether converting wired keyboard to wireless is the right project.

Conclusion

Converting wired keyboard to wireless is a rewarding DIY project that modernizes your favorite input device. Whether you choose a Bluetooth adapter, Raspberry Pi Zero W proxy or commercial converter kit, each method strikes its own balance between cost, complexity and performance.

By following our step-by-step guide, gathering the right tools and evaluating pros and cons, you’ll transform your wired keyboard into a sleek wireless solution. Say goodbye to tangled cables and hello to a cleaner, more flexible workspace.

Frequently Asked Questions