DescriptionM5Stack Catch Unit is a compact servo gripper unit powered by an SG92R servo motor. The M5Stack Catch Unit uses a PWM signal to drive the gear rotation, giving small robotics projects controlled gripping and releasing movement.This SG92R servo gripper is built with LEGO 8 mm round hole compatibility, so the SG92R servo gripper can be integrated with LEGO-style structures, RoverC builds, robotic arms, and gripper vehicles. The LEGO compatible gripper format helps makers add a ready-made claw mechanism without designing a full linkage from scratch.With 4.2-6V input support, a 90 degree gripper opening angle, and support for UiFlow, MicroPython, and Arduino development, M5Stack Catch Unit is suitable for fast education, prototyping, and small automation experiments that need a PWM gripper unit.Notice: Because the gripper opening and closing angle is 90 degrees, keep the servo rotation angle within 0-45 degrees. Use PWM at 50Hz with a 0.5ms-1ms pulse range to prevent stalling that may burn out the servo.Features M5Stack Catch Unit with SG92R servo motor for compact gripping and releasing actions SG92R servo gripper driven by a PWM signal at 50Hz LEGO compatible gripper structure with 8 mm round hole mounting 90 degree gripper opening and closing angle with 0-45 degree servo rotation control Compatible with RoverC and creative LEGO-style robotic assemblies Supports UiFlow, MicroPython, and Arduino development workflows 4.2-6V input voltage range for small robotic gripper projects Specifications Servo Model SG92R Drive Signal PWM: frequency 50Hz, 0-45 degrees, pulse 0.5ms-1ms Operating Frequency 50Hz Gripper Angle 90 degrees Input Voltage Range 4.2-6V Dead Band 10us Output Torque 2.5kg/cm at 4.8V Output Speed 0.1sec/60 degrees at 4.8V Operating Temperature 0 ~ 55°C Product Weight 21.5g Gross Weight 50g Product Size (Open) 72 x 56 x 37mm Package Size 147 x 90 x 40mm Enclosure Material Plastic (PC) Applications M5Stack Catch Unit gripper robot projects for classrooms and workshops SG92R servo gripper robotic arms, claws, and lightweight pick-and-place demos LEGO compatible gripper vehicles and RoverC-based mobile mechanisms PWM gripper unit experiments with UiFlow, MicroPython, or Arduino Creative control structures that need gripping and releasing movement Product List 1 x Unit Catch 1 x HY2.0-4 Adapter 1 x RoverC.Pro Connector Other ContentWhen M5Stack Catch Unit is connected to Port B, the M5Core G26 pin maps to the Unit Catch signal line, while 5V and GND map directly to the gripper power and ground pins. Check the linkage travel before operation so the SG92R servo gripper does not stall at the end of its 0-45 degree control range. M5Core Port B G26 5V GND Unit Catch SIGNAL 5V GND Resources Product documentation Model size PDF Catch test example for M5Core Unit Catch UiFlow2 docs FAQWhat does M5Stack Catch Unit do?M5Stack Catch Unit is a PWM gripper unit that uses an SG92R servo motor to open and close a small claw for gripping and releasing actions.How should the SG92R servo gripper be controlled?Control the SG92R servo gripper at 50Hz and keep the servo rotation within 0-45 degrees, using a 0.5ms-1ms pulse range to avoid stalling.Can this LEGO compatible gripper work with RoverC?Yes. The LEGO compatible gripper structure is listed as compatible with RoverC, and this LEGO compatible gripper can also be used in LEGO-style robotic arms and gripper vehicles.Which development platforms are supported?The M5Stack Catch Unit can be developed with UiFlow, MicroPython, and Arduino workflows for small robotic gripper projects.
