XY Portable Servo Debugger | All domestically sourced parts! A portable servo debug tool assembled from 2 shells

🔥 Project Goal: To lower the barrier to servo debugging to the floor!

Anyone who plays with RC models, builds robotic arms, or tunes RC models has been bothered by servo debugging. Buying a finished tester either means it needs to be plugged in and is useless outdoors, or the parts are obscure and unavailable domestically. Designing and soldering your own board is too much hassle, deterring beginners. Don't panic! This portable servo debugger, made from readily available domestic parts and assembled from just 2 shells, directly addresses all these pain points! No need for overseas shopping, no waiting for stock, no complex processes. Components costing a few yuan on PDD (PinDuoDuo) can be assembled in 5 minutes even by clumsy hands. A debug tool in your pocket, test servos anytime, anywhere!

✨ Key Highlights: Every design meets a need!

1. 🛒 Universally available domestic products, easy to buy on PDD, zero-threshold DIY

Say no to obscure chips and hard-to-find circuit boards! All components are 100% universally available on domestic e-commerce platforms (PDD/1688). No need to wait for stock or overseas shipping; a complete set can be assembled for a few yuan, bringing the cost down to rock bottom!

2. 🧩 Extreme minimalism: 2 shells assembled, 3D printed directly

The entire enclosure only requires 2 3D printed parts, which snap together for assembly! M2*8 screws are optional for reinforcement; it can be securely fastened even without screws. No complex nesting or cumbersome structures, even beginners can succeed on the first try!

3. 🔋 Full-scenario power freedom: Battery + Type-C + original interface triple compatibility

Perfectly replicates the classic USB-C servo tester's appearance, while completely solving the critical pain point of the original design: 'only works when plugged in':

• ✅ Built-in 3.7V 602030 lithium battery, portable, no need to plug in, debug anytime indoors or outdoors
• ✅ Type-C direct charging, can be charged with a phone cable, no extra charger needed
• ✅ Retains the original servo debugger's power input port, which can be used with an external RC model power supply, and also acts as a reverse battery power output port to provide emergency power to other small modules!

4. 🧱 XY electronic brick module standard, modular and infinitely expandable

Adopts the standard XY electronic brick module standard, with hole positions and dimensions fully compatible with modules in the same series, allowing for free horizontal/vertical array arrangements to create your own modular debugging toolset! Adding modules like servo signal generators or ESC testers later is as simple as snapping them together, no need to redesign the enclosure!

5. 🎨 Classic appearance replica, both aesthetic and tactile appeal

Perfectly references the classic appearance of the popular USB-C servo tester, retaining the optimal layout of knob + mode button, with an identical operating feel to the finished product, maximizing aesthetics, while optimizing the internal structure for perfect compatibility with the battery module!

🛒 Ultra-low-cost materials list (All available on PDD, easy to buy)

📐 Design Details & Feature Breakdown

Structural Design

• The enclosure consists of only 2 3D printed parts, with precisely reserved slots for the charging board, battery, and servo debugger main board, allowing direct assembly without additional modifications
• Perfectly reserved Type-C port, original power input hole, and knob/button openings, completely preserving the operating feel, indistinguishable from a finished product
• The enclosure is compact, easily fits into a pocket, and is stress-free to carry

Power Logic

• Type-C port inputs 5V, charging the 3.7V lithium battery via the TP4056 charging board, and simultaneously powering the servo debugger
• When powered independently by the lithium battery, it can operate completely detached from Type-C, providing several hours of battery life for all-day outdoor debugging needs
• The original power input port is fully retained, supporting external 4.8-6V RC model batteries / DC power, and also supporting reverse output of lithium battery voltage to provide emergency power to other small electronic modules, offering multiple uses!

Modular Design

• Strictly adheres to the XY electronic brick module standard, with 1:1 compatible hole positions and dimensions for modules in the same series, allowing for free array splicing
• The enclosure reserves expansion space, allowing other functional modules to be added later as needed, without redesigning the enclosure, offering infinite expansion possibilities

🎯 Applicable Scenarios

• RC model servo calibration, neutral position debugging, travel testing, fault detection
• Robot / robotic arm servo debugging, drive testing, project debugging
• Maker DIY project servo testing, circuit debugging, prototype verification
• Outdoor RC model debugging, portable tool, no need to carry bulky power equipment
• Servo repair, used servo inspection, quick testing anytime, anywhere

🚀 Final Thoughts

For RC model enthusiasts and makers, the most valuable thing is 'not being hindered by tools'! This portable servo debugger is designed to enable every enthusiast to own their portable debugging tool with zero barriers! Using the most easily available parts, the simplest structure, and the lowest cost to create the most practical tool! Open source and modifiable, all enthusiasts are welcome to modify and optimize it together to create their own exclusive debugging tool!

Author: Xyan