Education Project

Ackerman steering system by front and rear wheel angles (variable resistor)

Embedded control system with dial gauge, led, and relay

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Sequence control with variable resistor, step motor, and LED

Step motor angle control with sequence controller for Smart Automation

- Digital input(VR) / output

- LED on/off control / step motor angle control

Sequence controller with iteration algorithm for Smart Automation

- Digital input(VR) / output

- LED on/off control with iteration algorithm

Sequence Controller for Smart Automation

- Digital input

- Digital output

- Step motor control

- LED control

Step motor control with variable resistor and button

Modular controller for smart farm control with various control modes

Sensor and actuator test based on ROS

HMI-based embedded system for SMART FARM control with monitoring

HMI-based smartfarm control system

Human-machine interface (HMI)
Graph-based monitoring
Temperature sensor
Humidity sensor

HMI-based linear Kalman filtering with variable resistor (VR)

Serial communication between IC ( ATtniy85 ) and arduino

IC-based step motor speed control with variable resistor

IC-based OLED and LED control

ATTINY85 IC-based OLED and LED control - 2ATTINY85 IC-based OLED and LED control - 2

IC-based DC motor speed and led control(open loop) with variable resistor

IC-based selective control for relay and led on/off control with variable resistor

IC-based control for relay and led on/off control

Education Module for IC Programming

Education Module for Load Checking (Loadcell, led, buzzer)

Education Module for Embedded System Control (LCD, sensor, buzzer, led)

#include <HX711.h>

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

#define calibration_factor -425.0

double zero = 1.9 ;

double alpha = 0.3 ;

double mass_pre = 0 ;

#define DOUT 9

#define CLK 8

HX711 scale(DOUT, CLK);

int buzzer = 5 ;

int led_red = 4 ;

int led_yellow = 3 ;

int led_green = 2 ;

int mass_th_1 = 100 ;

int mass_th_2 = 200 ;

void setup() {

Serial.begin(115200);

scale.set_scale(calibration_factor);

scale.tare();

lcd.init();

lcd.backlight();

lcd.setCursor(0, 0);

lcd.print("XEM-001B / Test!");

lcd.setCursor(0, 1);

lcd.print("Load data=");

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

pinMode(led_green, OUTPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, LOW);

analogWrite(buzzer, 0);

}

void loop() {

double mass_cur = scale.get_units() - zero ;

double mass = (1 - alpha) * mass_pre + alpha * mass_cur ;

mass_pre = mass ;

String strMass = String(mass);

lcd.setCursor(10, 1);

lcd.print(strMass);

lcd.setCursor(15, 1);

lcd.print("g");

if (mass < 10) {

lcd.setCursor(14, 1);

lcd.print(" g");

}

if (mass < mass_th_1) {

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, HIGH);

analogWrite(buzzer, 0);

lcd.setCursor(0, 0);

lcd.print("XEM-001B / Green");

}

if (mass >= mass_th_1 && mass < mass_th_2) {

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, HIGH);

digitalWrite(led_green, LOW);

analogWrite(buzzer, 0);

lcd.setCursor(0, 0);

lcd.print("XEM-001B /Yellow");

}

if (mass >= mass_th_2) {

digitalWrite(led_red, HIGH);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, LOW);

analogWrite(buzzer, 5);

lcd.setCursor(0, 0);

lcd.print("XEM-001B / Red ");

}

#include <LiquidCrystal_I2C.h>

#include <Wire.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

int buzzer = 5 ;

int led_red = 4 ;

int led_yellow = 3 ;

int led_green = 2 ;

int ill_sensor = A2 ;

int th_upper = 800 ;

int th_lower = 700 ;

void setup() {

Serial.begin(9600) ;

Serial.print("LCD test with sensor and led~!") ;

pinMode(buzzer, OUTPUT);

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

pinMode(led_green, OUTPUT);

pinMode(ill_sensor, INPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, LOW);

analogWrite(buzzer, 0);

lcd.init();

lcd.backlight();

lcd.setCursor(0, 0);

lcd.print("XEM-001B");

lcd.setCursor(9, 1);

lcd.print("CDS:");

}

void loop() {

int value = analogRead(ill_sensor);

lcd.setCursor(13, 1);

lcd.print(value);

if (value >= th_upper) {

lcd.setCursor(9, 0);

lcd.print("RED ");

lcd.setCursor(0, 1);

lcd.print("BUZZ-OFF");

analogWrite(buzzer, 0);

digitalWrite(led_red, HIGH);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, LOW);

} else if (value >= th_lower & value < th_upper) {

lcd.setCursor(9, 0);

lcd.print("YELLOW ");

lcd.setCursor(0, 1);

lcd.print("BUZZ-OFF");

analogWrite(buzzer, 0);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, HIGH);

digitalWrite(led_green, LOW);

} else if (value < th_lower) {

lcd.setCursor(9, 0);

lcd.print("GREEN ");

lcd.setCursor(0, 1);

lcd.print("BUZZ-ON ");

analogWrite(buzzer, 10);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, HIGH);

}

Education Module for Embedded System Control (sensor, buzzer, led)

int led_red = 12 ;

int led_yellow = 13 ;

int time_delay = 500 ;

void setup() {

Serial.begin(9600) ;

Serial.print("LED blinking test~!") ;

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

}

void loop() {

digitalWrite(led_red, HIGH);

delay(time_delay);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, HIGH);

delay(time_delay);

digitalWrite(led_yellow, LOW);

}

int led_red = 12 ;

int led_yellow = 13 ;

int buzzer = 3 ;

int val_buz = 5 ;

int time_delay = 100 ;

int value = 0 ;

int sensor_port = A0 ;

int value_th = 250 ;

void setup() {

Serial.begin(9600) ;

Serial.print("LED blinking test~!") ;

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

pinMode(sensor_port, INPUT);

pinMode(buzzer, OUTPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

}

void loop() {

for (int i = 0; i <= 5; i++) {

digitalWrite(led_red, HIGH);

delay(time_delay);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, HIGH);

delay(time_delay);

digitalWrite(led_yellow, LOW);

}

while (1) {

value = analogRead(sensor_port) ;

Serial.print("Sensor value = ") ;

Serial.println(value) ;

if (value < value_th) {

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, HIGH);

} else {

digitalWrite(led_yellow, LOW);

digitalWrite(led_red, HIGH);

}

int led_red = 12 ;

int led_yellow = 13 ;

int buzzer = 3 ;

int val_buz = 5 ;

int time_delay = 100 ;

int value = 0 ;

int sensor_port = A0 ;

int value_th = 250 ;

void setup() {

Serial.begin(9600) ;

Serial.print("LED blinking test~!") ;

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

pinMode(sensor_port, INPUT);

pinMode(buzzer, OUTPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

}

void loop() {

for (int i = 0; i <= 5; i++) {

digitalWrite(led_red, HIGH);

delay(time_delay);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, HIGH);

delay(time_delay);

digitalWrite(led_yellow, LOW);

}

while (1) {

value = analogRead(sensor_port) ;

Serial.print("Sensor value = ") ;

Serial.println(value) ;

if (value < value_th) {

digitalWrite(led_red, LOW);

analogWrite(buzzer, 0);

digitalWrite(led_yellow, HIGH);

} else {

digitalWrite(led_yellow, LOW);

analogWrite(buzzer, val_buz);

digitalWrite(led_red, HIGH);

}

Education Module for Embedded System Control (sensor, relay, led)

int led_red = 4 ;

int led_yellow = 3 ;

int led_green = 2 ;

int time_delay = 100 ;

void setup() {

Serial.begin(9600) ;

Serial.print("LED blinking test~!") ;

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

pinMode(led_green, OUTPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, LOW);

}

void loop() {

digitalWrite(led_red, HIGH);

delay(time_delay);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, HIGH);

delay(time_delay);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, HIGH);

delay(time_delay);

digitalWrite(led_green, LOW);

}

int led_red = 4 ;

int led_yellow = 3 ;

int led_green = 2 ;

int relay_port = 7 ;

int time_delay_led = 100 ;

int time_delay_relay_on = 1000 ;

int time_delay_relay_off = 1500 ;

void setup() {

Serial.begin(9600) ;

Serial.print("Relay on/off test~!") ;

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

pinMode(led_green, OUTPUT);

pinMode(relay_port, OUTPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, LOW);

digitalWrite(relay_port, LOW);

}

void loop() {

for (int h = 0; h <= 2; h++) {

for (int i = 4; i >= 2; i--) {

digitalWrite(i, HIGH);

delay(time_delay_led);

digitalWrite(i, LOW);

}

while (1) {

digitalWrite(relay_port, HIGH);

digitalWrite(led_green, HIGH);

delay(time_delay_relay_on);

digitalWrite(led_green, LOW);

digitalWrite(relay_port, LOW);

digitalWrite(led_red, HIGH);

delay(time_delay_relay_off);

digitalWrite(led_red, LOW);

}

int led_red = 4 ;

int led_yellow = 3 ;

int led_green = 2 ;

int relay_port = 7 ;

int time_delay_led = 100 ;

int time_delay_relay_on = 1000 ;

int time_delay_relay_off = 1500 ;

int value = 0 ;

int sensor_port = A0 ;

int value_th = 600 ;

void setup() {

Serial.begin(9600) ;

Serial.print("Relay on/off test~!") ;

pinMode(led_red, OUTPUT);

pinMode(led_yellow, OUTPUT);

pinMode(led_green, OUTPUT);

pinMode(relay_port, OUTPUT);

pinMode(sensor_port, INPUT);

digitalWrite(led_red, LOW);

digitalWrite(led_yellow, LOW);

digitalWrite(led_green, LOW);

digitalWrite(relay_port, LOW);

}

void loop() {

for (int h = 0; h <= 2; h++) {

for (int i = 4; i >= 2; i--) {

digitalWrite(i, HIGH);

delay(time_delay_led);

digitalWrite(i, LOW);

}

while (1) {

value = analogRead(sensor_port) ;

Serial.print("Sensor value = ") ;

Serial.println(value) ;

if (value < value_th) {

digitalWrite(led_red, LOW);

digitalWrite(relay_port, HIGH);

digitalWrite(led_green, HIGH);

} else {

digitalWrite(led_green, LOW);

digitalWrite(relay_port, LOW);

digitalWrite(led_red, HIGH);

}

Education Module for Embedded System Control

Education module test-1Education module test-1

Mechanical Engineering

CNC Milling Machine

Aluminium profile engineering
Milling process with CNC

Mechatronics

C-language based Industrial controller for step motor, DC motor, servo motor

Controller-1

Main computer
Input
Output
Motion controller for motor control

Motor control drive

Left: step motor
Right: servo motor

X-Y stage

Two step motors
For position control on X-Y plane

Controller-2

Main control unit
Integrated module

1) Basic

2) PLC

Software Engineering

MATLAB / Simulink

Data analysis
Image processing
Artificial intelligence
Simulation techniques (control)
Dynamic modeling and analysis
Real-time application

Arduino with C-language

Obtain sensor information and analysis

- Temperature, motion detector, distance sensor, etc.

Digital control

- DC Motor, servo motor, step motor, light, etc

Internet of Things (IoT)

- Bluetooth / internet communication

Arduino LED - button control

Digital input signal by push button

- LED on/off control

Materials : Arduino, breadboard, LED, push button, electric wire, code

Code for LED-button control

void setup() {

Serial.begin(9600) ;

pinMode(2,INPUT);

pinMode(6,OUTPUT);

}

void loop() {

int value = digitalRead(2);

Serial.println(value) ;

if (value == HIGH){

digitalWrite(6,HIGH);

}

else {

digitalWrite(6,LOW);

}

Arduino CAN communication - LED - button control-1

Digital input signal by push button and CAN communication-based LED control

- LED on/off control

Materials : Arduino, CAN module(MCP 2515), breadboard, LED, push button, electric wire, code

Arduino CAN communication - LED - button control-2

Digital input signal by push button and CAN communication-based LED control

- LED on/off control

Materials : Arduino, CAN module(MCP 2515), breadboard, LED, push button, electric wire, code

Button test with CAN messageButton test with CAN message

Arduino counting system - segment control

Counting algorithm with open loop algorithm

- using segment

Materials : Arduino nano, segment, data cable and wires

Embedded system with counting algorithm (using Arduino nano)Embedded system with counting algorithm (using Arduino nano)

Arduino - RS485 communication test

- Single point lidar

- Variable resistor

RS485 communication testRS485 communication test