Sang-Hoon Lee

Matlab Data Acquisition and Control Toolbox for Basic Stamp Microcontrollers

In this paper, we present a Matlab and Simulink based software platform that enables the use of inexpensive microcontrollers for data acquisition and control tasks. The proposed framework is well suited for data acquisition and control tasks that require graphical user interface (GUI) and/or advanced computational capabilities but do not require stringent hardware performance. We illustrate the efficacy of our data acquisition and control technique by performing position control of a DC motor using a Basic Stamp 2 (BS2) microcontroller and our Matlab data acquisition and control toolbox

Pulse synchronization of sampled-data chaotic systems

In this paper, we consider the problem of pulse synchronization of a master-slave chaotic system in the sampled-data setting. We begin by developing a pulse-based intermittent control system for chaos synchronization. Using the discrete-time Lyapunov stability theory and the linear matrix inequality (LMI) framework, we construct a state feedback periodic pulse control law which yields global asymptotic synchronization of the sampled-data master-slave chaotic system for arbitrary initial conditions. Finally, we provide an experimental validation of our results by implementing, on a set of microcontrollers endowed with RF communication capability, a sampled-data master-slave chaotic system based on Chuas circuit.