Exploring the Ploopy Bean: An Open-Source TrackPoint Mouse for Travel

The Ploopy Bean is the latest open-source pointing device from Canadian company Ploopy, designed for users who prefer the precision of a ThinkPad-style TrackPoint over traditional touchpads or mice. Unlike conventional travel mice that rely on optical sensors and moving the device, the Bean stays stationary—you control the cursor with a red pointing stick embedded in the center of four buttons. This innovative approach combines the portability of a tiny mouse with the tactile control that many laptop users have come to love. Below, we answer key questions about this unique peripheral.

What is the Ploopy Bean and how does it differ from conventional mice?

The Ploopy Bean is a compact, open-source pointing device that eliminates the need for a touchpad or trackball. Instead of moving the entire mouse across a surface, you use a red pointing stick (similar to Lenovo ThinkPad's TrackPoint) to control the cursor. Surrounding the stick are four programmable buttons, offering a minimalistic yet functional design. Unlike traditional travel mice, the Bean remains still on your desk—you apply pressure to the stick to move the cursor, making it ideal for tight spaces like airplane trays or crowded coffee table. This approach also reduces wrist strain, as you don't need to grip or slide anything. Ploopy's design harkens back to the era when IBM's ThinkPad laptops popularized the TrackPoint, but now in a standalone form that can be used with any computer via USB.

How does the TrackPoint-like pointing stick work on the Ploopy Bean?

The Bean's core input method is a highly-sensitive pointing stick, which relies on a Texas Instruments sensor to detect pressure and direction. This is the same type of sensor technology used in classic ThinkPad TrackPoints. When you push the red nub left, right, up, or down, the sensor translates that pressure into cursor movement—the harder you push, the faster the cursor moves. Because the stick is pressure-sensitive rather than capacitive, it works even with sweaty or gloved fingers. The four buttons around the stick can be configured for left-click, right-click, scroll, or custom functions via open-source firmware. This design allows for precise control without moving your hand off the device, much like using a ThinkPad keyboard, but now as a separate peripheral connected to any computer.

What are the pricing and availability details for the Ploopy Bean?

The Ploopy Bean is available for preorder directly from Ploopy's website for CAD $69.99, which roughly converts to US $51. As a Canadian company, Ploopy prices in its local currency, so international buyers should check the current exchange rate. The device comes as a pre-assembled unit with a 3D-printed enclosure, but because it's fully open source, you can download the design files and print replacement parts yourself. Shipping details and exact availability dates are not specified, but preorder indicates that the product is in production. Given Ploopy's history with trackball mice, the Bean is expected to ship within a few weeks of ordering. This price point makes it competitive with premium travel mice, especially considering its unique input method and open-source flexibility.

What makes the Ploopy Bean an open-source device, and what does that mean for users?

Being open source means that Ploopy publishes all design files, firmware, and schematics for the Bean under a permissive license. Users can modify the 3D-printed case, reprogram the buttons, or even tweak the firmware to add new features. This is a significant advantage for DIY enthusiasts, as you are not locked into proprietary software or hardware. If a button breaks, you can print a new part; if you want different button layouts, you can remix the design. The firmware is microcontroller-based, allowing users to adjust sensitivity, button mappings, and macros via tools like QMK or similar platforms. For those who prefer a ready-to-use experience, the Bean works out of the box, but the open-source nature ensures long-term repairability and customization. This approach aligns with the principles of right-to-repair and sustainable technology.

What are the design and build features of the Ploopy Bean?

The Ploopy Bean features a compact, travel-friendly design with a 3D-printed enclosure that is both lightweight and durable. The case is pre-assembled, but the files are available for you to print custom shells in different colors or materials. Around the central pointing stick, there are four buttons arranged in a diamond pattern, each fully programmable. The device connects via USB-C cable (included) and is recognized as a standard HID pointing device by most operating systems. Under the hood, the Bean uses a Texas Instruments sensor known for its accuracy and low power consumption. The overall footprint is smaller than a typical mouse, fitting easily into a pocket or laptop bag. While it lacks a scroll wheel, the buttons can be configured for scrolling (e.g., hold a button and push the stick). This minimalist design prioritizes portability and TrackPoint-style control over traditional features.

Who is the target audience for the Ploopy Bean, and what problems does it solve?

The Ploopy Bean is aimed at power users who love the ThinkPad TrackPoint experience but want it as a portable external device. It's ideal for travelers who work in cramped spaces such as airplanes, trains, or cafés, where moving a regular mouse is inconvenient. Laptop users who miss the TrackPoint on newer ThinkPad models (or who want one on non-ThinkPad laptops) will find it a perfect companion. Additionally, the open-source aspect attracts makers and programmers who appreciate customizability. The Bean solves the problem of cursor control in tight environments without sacrificing precision: because you don't move the device, you don't need a large mouse pad. It also addresses ergonomic concerns for users with wrist pain from repetitive mouse movements, as the stick requires only fine finger pressure. In essence, it's a niche but powerful tool for anyone who values efficiency and portability.