Prototype Robot Manipulator 4 DOF Berbasis Raspberry Pi Zero W - Supriyono, Joko; Wahjudi, Dody; Watiningsih, Tri (Journal of Telecommunication Electronics and Control Engineering (JTECE); Vol 4 No 1 (2022): Journal of Telecommunication, Electronics, and Control Engineering (JTECE); 25-38 ; 2654-8275 ; 10.20895/jtece.v4i1, 2022)