Control Systems and Optimization Letters
Vol 4, No 1 (2026)

Trajectory Tracking Controller Design for a One-degree-of-Freedom Robotic Arm using Fuzzy Logic and Neural Controllers

Nguyen, Quang-Thien (Unknown)
Nguyen, Anh-Huy (Unknown)
Le, Hoang-Linh (Unknown)
Nguyen, Hai-Thanh (Unknown)
Le, Thi-Hong-Lam (Unknown)
Nguyen, Ngoc-Hung (Unknown)
Nguyen, Van-Hiep (Unknown)
Nguyen, Thanh-Binh (Unknown)
Nguyen, Thi-Ngoc-Thao (Unknown)
Nguyen, Minh-Tam (Unknown)
Nguyen, Phong-Luu (Unknown)
Le, Hoang-Lam (Unknown)
Phung, Son-Thanh (Unknown)



Article Info

Publish Date
28 Mar 2026

Abstract

The one-degree-of-freedom (1-DOF) robotic arm is a fundamental platform widely used in laboratories for teaching and evaluating position and trajectory control strategies. This paper presents the modeling, simulation, and experimental implementation of a 1-DOF robotic arm system using intelligent control approaches. A Fuzzy Logic Controller (FLC) and a neural network controller (NNC) based on a multi-layer perceptron (MLP) were designed and evaluated in MATLAB/Simulink and implemented in real time on an STM32F4 embedded hardware platform. Both controllers were tested under step and sinusoidal reference inputs, achieving tracking errors below 5°, settling times of approximately 0.1 s (within ±2%), and limited overshoot. Although the neural network successfully reproduced the general control behavior of the FLC, the fuzzy controller demonstrated slightly smoother responses and lower control effort under multi-level step conditions. A primary contribution of this work is the development and validation of a low-cost STM32F4G-based embedded platform for implementing and experimentally evaluating intelligent control algorithms, providing a practical and scalable solution for intelligent control research and laboratory education in universities.

Copyrights © 2026






Journal Info

Abbrev

csol

Publisher

Subject

Aerospace Engineering Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

Description

Control Systems and Optimization Letters is an open-access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of control and optimization, rapidly enabling a safe and sustainable interconnected human society. Control Systems and Optimization Letters ...