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  • Basic Robotic Arm Control

  • Created: Mar 11, 2015

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The latest development on robotics already go beyond of what we expected. However, this development comes with fear that someday it will be miscarried, then it will become revolutionary to human. This design features a simple robotic arm control that can be customized with respect to the materials you want to use specifically on the type of motor. It can drive a regular dc motor provided that it is able to run with an output current of 0.6 to 1.2A and output voltage clamp of +45V (low side) and -20V (high side) during inductive switching. It is fault protected that loss of ground will not damage an IC. It also features short-circuit detection and current limiting with automatic retry. The system itself has internal reverse battery protection on VPWR , which is good in power management.

The design is comprised of MC33879APEK configurable octal serial switch with open load detect current disable and incorporates SMARTMOS technology. It is used to control the dc motors that are interfaced to the system. The 5V supply and VBAT are provided with capacitor filters. The dc motors are placed to the different parts of the robot. The platform revolute is installed at the surface so the robotic arm itself can rotate horizontally (azimuth movement). The arm revolute is installed directly above the platform so the robot can rotate vertically (elevation movement). The horizontal and vertical clipper serves as the fingers of the robot that will have direct contact to the target object. The MCU or microcontroller unit is used as a host controller of the system and it also processes the robot data input/output.

The design is applicable to robotic development with design considerations. It is applicable to different types of dc motors assuming that the power requirements are met. The design is flexible that only few modifications required so it can be used for other applications.



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