Phetnakorn Aermsa-Ard Department of Electronic Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok Thailand
Chonticha Wangsamad Department of Electronic Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok Thailand
Kritsada Mamat Department of Electronic Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok Thailand
