CaddxFPV GL and GM Upgrade Cable
by Caddx

Product Description The CaddxFPV GL and GM Upgrade Cable Kit (Part Number: C0PJ-SJ001) is a specialized serial interface data bridge designed to execute critical firmware updates, system reflashing, and peripheral tuning on Walksnail head-tracking modules and Caddx GM-series camera gimbals. Built around a high-performance USB-to-UART serial controller utilizing the CH340X chipset, this hardware kit bridges the communication gap between personal computers and embedded unmanned system architectures. It serves as the primary technical framework for keeping Walksnail Avatar Goggles X, Goggles L, the Goggles X Extension Board, and the entire GM1, GM2, and GM3 stabilization gimbal lineup running optimal software baselines, unlocking advanced head-chasing precision and ensuring total signal compatibility within digital FPV ecosystems.

Featuring a modular array of custom terminal connections—including 3-pin JST SH 1.0 and 4-pin 3.5mm data lines—the upgrade kit provides secure, insulated signal routing for TX and RX logic loops, enabling safe debugging and flashing profiles without the need for intrusive diagnostic soldering. This essential configuration tool addresses the practical requirements of multiple high-tech markets: consumer FPV drone pilots deploy it to patch head-tracking modules for deep tactical immersion; aerospace engineering clubs and university robotics labs utilize it as an instructional testbed to study serial communication protocols, USB-to-TTL translation, and device drivers; while commercial sUAS manufacturers, defense contractors, and military agencies rely on this non-cellular programming tool to maintain localization firmware on tactical reconnaissance UAV payloads and airborne observation gimbals.

Technical Specifications

• Part Manufacturer Number: C0PJ-SJ001 (WSSJ01-C2)

• Core Chipset: Integrated CH340X USB-to-UART Serial Bridge Controller

• Input Interface Port: Onboard USB Type-C Female

• Signal Logic Output Protocols: UART / TTL

• Connector Form Factors: 3.5mm 4-Pin Terminal, 3-Pin JST SH 1.0

• Cable Gauge Architecture: High-flexibility insulated wire gauge for stable data link performance

• Hardware Compatibility: Walksnail Avatar Goggles X, Walksnail Goggles L, Walksnail Goggles X Extension Board, Caddx GM1, GM2, and GM3 Camera Gimbals

• Supported Operating Systems: Windows, macOS, Linux (CH340 Driver Compatible)

• Purpose: Firmware updates, head-tracking module flashing, and gimbal parameter programming

What Is Included

• (1) USB to UART CH340X Interface PCB Module with Built-in USB-C Port

• (1) 3.5mm 4-Pin Audio-Style Connector Block

• (1) 3-Pin JST SH 1.0 Female Header Connector

• (1) USB-A to USB-C High-Speed Data Cable

• (1) 3-Pin JST SH 1.0 Solderless Upgrade Cable

• (1) 4-Pin to 4-Pin 3.5mm Male Auxiliary Interface Cable