This book will give hands on all IoT (internet of things ) related protocol, You will learn almost all IoT Protocols using NodeMCU ESP8266 and Arduino IDE, It covers many advance protocols such as WebSocket, MODBUS RTU, MODBUS TCP, UDP and sendning emails etc. Modbus TCP is widely used in industries for communication between PLC and HMI. Book is kept simple read less and Do more with more than 30 example programs.This book will give hands on all IoT (internet of things ) related protocol, You will learn almost all IoT Protocols using NodeMCU ESP8266 and Arduino IDE, It covers many advance protocols such as WebSocket, MODBUS RTU, MODBUS TCP, UDP and sendning emails etc. Modbus TCP is widely used in industries for communication between PLC and HMI. Book is kept simple read less and Do more with more than 30 example programs.