Open source 42 stepper motor robotic arm with control box, Arduino CNC drive, motion posture
https://img.xiaodingchui.com/2023/09/WeChat_20230914163428.mp4
SNRM49 50 2.4G remote control test
http://videocdn.makerbuying.com/SNRM49%2050%202.4G%E9%81%A5%E6%8E%A7%E6%BC%94%E7%A4%BA.mp4
SNAM5300 4DOF robot arm
https://v.smallhammer.cc/SNAM-robot-arm/SNAM5300%20logo.mp4
arduino basic guide
https://www.youtube.com/watch?v=h4BQE0iE2oQ&feature=youtu.be