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This IO Expansion HAT from DFRobot is the perfect companion for your Raspberry Pi 4B and Raspberry Pi 3B+
Each steering gear can move 180 degrees and the angle of motion is relatively large
Infrared sensor receiver module KY-022
Input: DC 4
Weight: 21g
eSun eVacuum Kit DOF This IO Expansion HAT fromThe 3D printing filament vacuum kit is a novel portable household vacuum device for vacuum storage of filaments, especially for some with high water absorption rate, such as PVA, ePA, ePA CF, ePA GF, ABSMAX, TPU 95A, etc. When your filaments are opened and not used up, in order to prevent them from absorbing water and affecting the print quality, you can use this kit to save your filaments. The vacuum kit can be used together with eBOX to achieve the
