Abstract
In this paper, we introduce a flexible control system using RS485 network. We develop some modules for sensing and controlling a robot via RS485 network. It includes integrated control module, sensor module and motor control module. The integrated control module corresponds to main module and the others correspond to sub modules. Each sub module has own ID. They are connected with daisy-chain and the connection can be changed flexible. We made some robots using these modules. These kinds of modules are already existed, but they need complex hardware or they are not disclosed the hardware and the software. These systems are disclosed and can be modified arbitrary. Furthermore, ready-made modules are provided.
