refilling is not needed and is leakproof
Shaking the module firmly might help unstick the contacts
Ideal for driving DC and Stepper motors in micro-mouse
For users building night vision or surveillance systems
Leads all the pins and has detailed label for the Pins
DIY 2WD Smart Chassis Car Kit Others refilling is not needed andDIY 2WD Smart Chassis Car Kit Simple Structure, easy to assemble and use, reasonable design, reserve interface for tracking module. speed module, driver module, and obstacle avoidance module Four on the 5th battery compartment, convenient power throughout the system in a switch, while starting and stopping. Using a high quality magnetic motor through EMC testing, decelerate ratio of 1: 48. This kit comes with Round shape chassis, Motors, wheels, and