Current concepts in ioT took more and more in their daily lives, whether it is a matter of smart home smart farm is what this facility to work for humans. Selecting a protocol is used, what is involved is very important because the protocol running on the system, the Internet is a large structure. Not suitable to be used with embedded systems, where proper protocols with the concept of the ioT that's about CoAP Protocol and MQTT Protocol, both of which protocols are suitable for use on small embedded systems, but both had the Protocol differences between direct forms of communication which the CoAP Protocol.A one-to-one communication or data-is to get from one machine to another. The robot controller, whether it is sending the read position to control or that flag certain events need to be controlled at the same time, or send a flag which is difficult if it is one-to-one communication via the research protocol, so the queue is it which laem.Enable communication Many-to-Many is a multiple-data transmitter to multiple receivers using pi with Raspberry display send to the robot controller and pick up location shown results. In the field of robot Node MCU value and convert it to signal to the motor position control phan. The results concluded that the control of parallel robots Take less time than the control robot, one at a time.
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