Do you need to write firmware in C for a Modbus RTU Slave device but do not know where to begin? This book takes you through the entire design process by describing the highlights of a robust, fully functional design. All aspects of the design are covered, including choice of data structures, data flow modeling, command parsing and execution, exception processing, and detailed timing requirements. In addition Modbus Devices also offers for sale a modestly priced copy of a fully functional C source code implementation. The setup and interfacing are simple and straightforward as described in the tutorial.