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Abstract
This paper proposed for the low cost automation solution based on recent Internet of Things (IoT) technology using embedded processors like PIC micro controller for the automation of a small grid or a substation. This gives the advantage of reduction in cost plus a plethora of connectivity options. In this paper, PIC C compiler software is used to control a feeder with help of IoT module. Analog and digital parameters from field are monitored and controlled using analog pins, interfacing relays and communication ports available in the controller. The automation sequences for control monitoring and protection of the system is defined using C program in such a way that it sends the input parameters in the field side to a remote through the networks, periodically. Similarly, the control signals controls the relays which are all instructed by the operators. At times when current exceeds the limits, the microcontroller automatically trips the circuit breakers. IoT used is ESP8266 module and simulation is verified by the PROTEUS software.