Articles – หน้า 4 – เอสทูอินโนเวชั่น

Posted on 11/08/202111/08/2021 by admin

แผ่นสะท้อนแสงโฟโตอิเล็กทริคเซนเซอร์ Photoelectric Sensor Reflectors Plate

แผ่นสะท้อนแสง/แผ่นสะท้อนแสง สำหรับเซ็นเซอร์สวิตช์ photoelectric switch sensor ใช้เซ็นเซอร์สะท้อนแสงแบบโพลาไรซ์ รีเฟลกเตอร์ทรงลูกบาศก์มุม

Posted on 23/07/202124/07/2021 by admin

วัดอุณหภูมิด้วยเทอร์โมคัปเปิล Thermocouple Type K MAX6675

Thermocouple Type K สามารถวัดอุณหภูมิในช่าง 0-800 C
MAX6675 ตัวแปลง K-Thermocoupleto 0°C ถึง +1024°C เป็น Digital ข้อมูล
เป็นเอาต์พุตในความละเอียด 12 บิต รองรับ การสื่อสาร SPI
https://datasheets.maximintegrated.com/en/ds/MAX6675.pdf

การติดตั้ง Library

การเปิดตัวอย่างโค้ด

/*
  Average Thermocouple

  Reads a temperature from a thermocouple based
  on the MAX6675 driver and displays it in the default Serial.

  https://github.com/YuriiSalimov/MAX6675_Thermocouple

  Created by Yurii Salimov, May, 2019.
  Released into the public domain.
*/
#include &lt;Thermocouple.h&gt;
#include &lt;MAX6675_Thermocouple.h&gt;

#define SCK_PIN 3
#define CS_PIN 4
#define SO_PIN 5

Thermocouple* thermocouple;

// the setup function runs once when you press reset or power the board
void setup() {
  Serial.begin(9600);

  thermocouple = new MAX6675_Thermocouple(SCK_PIN, CS_PIN, SO_PIN);
}

// the loop function runs over and over again forever
void loop() {
  // Reads temperature
  const double celsius = thermocouple-&gt;readCelsius();
  const double kelvin = thermocouple-&gt;readKelvin();
  const double fahrenheit = thermocouple-&gt;readFahrenheit();

  // Output of information
  Serial.print("Temperature: ");
  Serial.print(celsius);
  Serial.print(" C, ");
  Serial.print(kelvin);
  Serial.print(" K, ");
  Serial.print(fahrenheit);
  Serial.println(" F");

  delay(500); // optionally, only to delay the output of information in the example.
}

Average Thermocouple

Reads a temperature from a thermocouple based

on the MAX6675 driver and displays it in the default Serial.

https://github.com/YuriiSalimov/MAX6675_Thermocouple

Created by Yurii Salimov, May, 2019.

Released into the public domain.

#include <Thermocouple.h>

#include <MAX6675_Thermocouple.h>

#define SCK_PIN 3

#define CS_PIN 4

#define SO_PIN 5

Thermocouple* thermocouple;

// the setup function runs once when you press reset or power the board

void setup() {

Serial.begin(9600);

thermocouple = new MAX6675_Thermocouple(SCK_PIN, CS_PIN, SO_PIN);

}

// the loop function runs over and over again forever

void loop() {

// Reads temperature

const double celsius = thermocouple->readCelsius();

const double kelvin = thermocouple->readKelvin();

const double fahrenheit = thermocouple->readFahrenheit();

// Output of information

Serial.print("Temperature: ");

Serial.print(celsius);

Serial.print(" C, ");

Serial.print(kelvin);

Serial.print(" K, ");

Serial.print(fahrenheit);

Serial.println(" F");

delay(500); // optionally, only to delay the output of information in the example.

}

Posted on 26/04/2021 by admin

Objects moving on a conveyor belt using Open cv with Python

Posted on 25/08/201925/08/2019 by admin

โปรแกรม PLC สตาร์ท สตาร์ เดลต้า

การนำ PLC ไปควบคุมการกลับทางหมุนมอเตอร์ 3 เฟส

F5 -| |- Open Contact

F6 -|/|- Close Contact

sF6 -|^|- Rising Pulse

sF5 Open Branch

F7 -( )- Coil

F8 -[ ]- Application Instruction

sF9 Vertical Line

Posted on 14/08/201927/08/2019 by admin

PLC เบื้องต้น

PLC เบื้องต้น Programmable logic controller การเขียนโปรแกรม (Programming) หรือ การเขียนโค้ด (Coding) PLC เบื้องต้น นั้นใช้ ภาษา Ladderภาษาที่ใช้ในการเขียนโปรแกรม PLC คำสั่งบูลีน

Interlocks

START       STOP                     OUT
----| |----+----| |----------------------( )
           |
   OUT     |
----| |----+

START STOP OUT

----| |----+----| |----------------------( )

OUT |

----| |----+

Posted on 02/06/201931/03/2024 by admin

เริ่มต้นใช้งานระบบ DAQ อย่างง่ายโดยใช้ parallax.com PLX-DAQ Excel & Arduino from

/*
  Debounce

  Each time the input pin goes from LOW to HIGH (e.g. because of a push-button
  press), the output pin is toggled from LOW to HIGH or HIGH to LOW. There's a
  minimum delay between toggles to debounce the circuit (i.e. to ignore noise).

  The circuit:
  - LED attached from pin 13 to ground
  - pushbutton attached from pin 2 to +5V
  - 10 kilohm resistor attached from pin 2 to ground

  - Note: On most Arduino boards, there is already an LED on the board connected
    to pin 13, so you don't need any extra components for this example.

  created 21 Nov 2006
  by David A. Mellis
  modified 30 Aug 2011
  by Limor Fried
  modified 28 Dec 2012
  by Mike Walters
  modified 30 Aug 2016
  by Arturo Guadalupi

  This example code is in the public domain.

  http://www.arduino.cc/en/Tutorial/Debounce
*/

// constants won't change. They're used here to set pin numbers:
const int buttonPin = 2;    // the number of the pushbutton pin
const int ledPin = 13;      // the number of the LED pin

// Variables will change:
int ledState = HIGH;         // the current state of the output pin
int buttonState;             // the current reading from the input pin
int lastButtonState = LOW;   // the previous reading from the input pin

// the following variables are unsigned longs because the time, measured in
// milliseconds, will quickly become a bigger number than can be stored in an int.
unsigned long lastDebounceTime = 0;  // the last time the output pin was toggled
unsigned long debounceDelay = 50;    // the debounce time; increase if the output flickers
unsigned long Count = 0;
unsigned long int milli_time;    //variable to hold the time
void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);
    pinMode(buttonPin, INPUT_PULLUP);
    Serial.begin(9600);
  Serial.println("CLEARDATA");        
  Serial.println("LABEL,Computer Time,Time (Milli Sec.),Count");  
  // set initial LED state
  digitalWrite(ledPin, ledState);
}

void loop() {
  // read the state of the switch into a local variable:
  int reading = digitalRead(buttonPin);

  // check to see if you just pressed the button
  // (i.e. the input went from LOW to HIGH), and you've waited long enough
  // since the last press to ignore any noise:

  // If the switch changed, due to noise or pressing:
  if (reading != lastButtonState) {
    // reset the debouncing timer
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    // whatever the reading is at, it's been there for longer than the debounce
    // delay, so take it as the actual current state:

    // if the button state has changed:
    if (reading != buttonState) {
      buttonState = reading;

      // only toggle the LED if the new button state is HIGH
      if (buttonState == HIGH) {
        ledState = !ledState;
        Count++;
        //Serial.print(Count);
        //Serial.println(" pcs");
        Serial.print("DATA,TIME,");
        Serial.print(milli_time);
        Serial.print(",");
        Serial.println(Count);
      }
    }
  }

  // set the LED:
  digitalWrite(ledPin, ledState);

  // save the reading. Next time through the loop, it'll be the lastButtonState:
  lastButtonState = reading;
}

Debounce

Each time the input pin goes from LOW to HIGH (e.g. because of a push-button

press), the output pin is toggled from LOW to HIGH or HIGH to LOW. There's a

minimum delay between toggles to debounce the circuit (i.e. to ignore noise).

The circuit:

- LED attached from pin 13 to ground

- pushbutton attached from pin 2 to +5V

- 10 kilohm resistor attached from pin 2 to ground

- Note: On most Arduino boards, there is already an LED on the board connected

to pin 13, so you don't need any extra components for this example.

created 21 Nov 2006

by David A. Mellis

modified 30 Aug 2011

by Limor Fried

modified 28 Dec 2012

by Mike Walters

modified 30 Aug 2016

by Arturo Guadalupi

This example code is in the public domain.

http://www.arduino.cc/en/Tutorial/Debounce

// constants won't change. They're used here to set pin numbers:

const int buttonPin = 2; // the number of the pushbutton pin

const int ledPin = 13; // the number of the LED pin

// Variables will change:

int ledState = HIGH; // the current state of the output pin

int buttonState; // the current reading from the input pin

int lastButtonState = LOW; // the previous reading from the input pin

// the following variables are unsigned longs because the time, measured in

// milliseconds, will quickly become a bigger number than can be stored in an int.

unsigned long lastDebounceTime = 0; // the last time the output pin was toggled

unsigned long debounceDelay = 50; // the debounce time; increase if the output flickers

unsigned long Count = 0;

unsigned long int milli_time; //variable to hold the time

void setup() {

pinMode(buttonPin, INPUT);

pinMode(ledPin, OUTPUT);

pinMode(buttonPin, INPUT_PULLUP);

Serial.begin(9600);

Serial.println("CLEARDATA");

Serial.println("LABEL,Computer Time,Time (Milli Sec.),Count");

// set initial LED state

digitalWrite(ledPin, ledState);

}

void loop() {

// read the state of the switch into a local variable:

int reading = digitalRead(buttonPin);

// check to see if you just pressed the button

// (i.e. the input went from LOW to HIGH), and you've waited long enough

// since the last press to ignore any noise:

// If the switch changed, due to noise or pressing:

if (reading != lastButtonState) {

// reset the debouncing timer

lastDebounceTime = millis();

}

if ((millis() - lastDebounceTime) > debounceDelay) {

// whatever the reading is at, it's been there for longer than the debounce

// delay, so take it as the actual current state:

// if the button state has changed:

if (reading != buttonState) {

buttonState = reading;

// only toggle the LED if the new button state is HIGH

if (buttonState == HIGH) {

ledState = !ledState;

Count++;

//Serial.print(Count);

//Serial.println(" pcs");

Serial.print("DATA,TIME,");

Serial.print(milli_time);

Serial.print(",");

Serial.println(Count);

}

// set the LED:

digitalWrite(ledPin, ledState);

// save the reading. Next time through the loop, it'll be the lastButtonState:

lastButtonState = reading;

}

4. เรียกใช้ PLX-DAQ

Posted on 12/02/201909/01/2020 by admin

การใช้งานจอ LCD 1602 แบบ i2c กับ Arduino

เริ่มต้นด้วยการหา address ของจอ LCD โดยส่วนมากแล้วจอ LCD แบบ I2C จะใช้ IC PCF8574T เป็น อินเตอร์เฟส I2C-bus 100 kHz (โหมด I2C บัส มาตรฐาน)

ซึ่งมักจะเป็น Address 0x27 แต่หากเราไม่ทราบ address จริงๆ สามารถใช้ i2c_scanner สแกนขา Address ได้ดัง Code ด้านล่าง

Arduino Playground – I2cScanner

https://playground.arduino.cc/Main/I2cScanner

 // --------------------------------------
// i2c_scanner
//
// Version 1
//    This program (or code that looks like it)
//    can be found in many places.
//    For example on the Arduino.cc forum.
//    The original author is not know.
// Version 2, Juni 2012, Using Arduino 1.0.1
//     Adapted to be as simple as possible by Arduino.cc user Krodal
// Version 3, Feb 26  2013
//    V3 by louarnold
// Version 4, March 3, 2013, Using Arduino 1.0.3
//    by Arduino.cc user Krodal.
//    Changes by louarnold removed.
//    Scanning addresses changed from 0...127 to 1...119,
//    according to the i2c scanner by Nick Gammon
//    http://www.gammon.com.au/forum/?id=10896
// Version 5, March 28, 2013
//    As version 4, but address scans now to 127.
//    A sensor seems to use address 120.
// Version 6, November 27, 2015.
//    Added waiting for the Leonardo serial communication.
// 
//
// This sketch tests the standard 7-bit addresses
// Devices with higher bit address might not be seen properly.
//

#include <Wire.h>


void setup()
{
  Wire.begin();

  Serial.begin(9600);
  while (!Serial);             // Leonardo: wait for serial monitor
  Serial.println("\nI2C Scanner");
}


void loop()
{
  byte error, address;
  int nDevices;

  Serial.println("Scanning...");

  nDevices = 0;
  for(address = 1; address < 127; address++ ) 
  {
    // The i2c_scanner uses the return value of
    // the Write.endTransmisstion to see if
    // a device did acknowledge to the address.
    Wire.beginTransmission(address);
    error = Wire.endTransmission();

    if (error == 0)
    {
      Serial.print("I2C device found at address 0x");
      if (address<16) 
        Serial.print("0");
      Serial.print(address,HEX);
      Serial.println("  !");

      nDevices++;
    }
    else if (error==4) 
    {
      Serial.print("Unknown error at address 0x");
      if (address<16) 
        Serial.print("0");
      Serial.println(address,HEX);
    }    
  }
  if (nDevices == 0)
    Serial.println("No I2C devices found\n");
  else
    Serial.println("done\n");

  delay(5000);           // wait 5 seconds for next scan
}

// --------------------------------------

// i2c_scanner

// Version 1

// This program (or code that looks like it)

// can be found in many places.

// For example on the Arduino.cc forum.

// The original author is not know.

// Version 2, Juni 2012, Using Arduino 1.0.1

// Adapted to be as simple as possible by Arduino.cc user Krodal

// Version 3, Feb 26 2013

// V3 by louarnold

// Version 4, March 3, 2013, Using Arduino 1.0.3

// by Arduino.cc user Krodal.

// Changes by louarnold removed.

// Scanning addresses changed from 0...127 to 1...119,

// according to the i2c scanner by Nick Gammon

// http://www.gammon.com.au/forum/?id=10896

// Version 5, March 28, 2013

// As version 4, but address scans now to 127.

// A sensor seems to use address 120.

// Version 6, November 27, 2015.

// Added waiting for the Leonardo serial communication.

// This sketch tests the standard 7-bit addresses

// Devices with higher bit address might not be seen properly.

#include <Wire.h>

void setup()

{

Wire.begin();

Serial.begin(9600);

while (!Serial); // Leonardo: wait for serial monitor

Serial.println("\nI2C Scanner");

}

void loop()

{

byte error, address;

int nDevices;

Serial.println("Scanning...");

nDevices = 0;

for(address = 1; address < 127; address++ )

{

// The i2c_scanner uses the return value of

// the Write.endTransmisstion to see if

// a device did acknowledge to the address.

Wire.beginTransmission(address);

error = Wire.endTransmission();

if (error == 0)

{

Serial.print("I2C device found at address 0x");

if (address<16)

Serial.print("0");

Serial.print(address,HEX);

Serial.println(" !");

nDevices++;

}

else if (error==4)

{

Serial.print("Unknown error at address 0x");

if (address<16)

Serial.print("0");

Serial.println(address,HEX);

}

if (nDevices == 0)

Serial.println("No I2C devices found\n");

else

Serial.println("done\n");

delay(5000); // wait 5 seconds for next scan

}

ตัวอย่างการใช้งาน

การต่อใช้งานให้เราต่อ SDA และ SCL ของ LCD ไปที่ขา A4 และ A5 ของ Arduino UNO โดยขา SDA ต่อ A4 และ SCL ต่อ A5

จากนั้น ทำการติดตั้ง Library LiquidCrystal_I2C_master และ อัพโหลด Code ตามด้านล่าง

https://github.com/fdebrabander/Arduino-LiquidCrystal-I2C-library

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C lcd(0x27, 16, 2); // ตั้งค่าที่อยู่ LCD เป็น 0x27 สำหรับการแสดง 16 ตัวอักษรและ 2 บรรทัด

void setup(){
	// initialize the LCD
	lcd.begin();

	// Turn on the blacklight and print a message.
	lcd.backlight();
	lcd.print("https://s2ins.com!"); //พิมพ์ข้อความ
}

void loop()
{
	// Do nothing here...
}

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2); // ตั้งค่าที่อยู่ LCD เป็น 0x27 สำหรับการแสดง 16 ตัวอักษรและ 2 บรรทัด

void setup(){

// initialize the LCD

lcd.begin();

// Turn on the blacklight and print a message.

lcd.backlight();

lcd.print("https://s2ins.com!"); //พิมพ์ข้อความ

}

void loop()

{

// Do nothing here...

}

Posted on 16/12/201804/01/2020 by admin

ปัญหาการ Upload Code Arduino Nano

สำหรับผู้ที่ใช้ Arduino Nano ในบางครั้งจะพบปัญหาในเรื่องของการ Upload โปรแกรมไม่ผ่านนะครับ บางทีอาจจะเป็นปัญหาแบบเส้นผมบังภูเขาก็ได้นะครับเพราะ Arduino Nano นั้นมี Processor อยู่ 2 แบบนั่นคือ At Mega 328 และ At Mega 168 ให้เราสังเกตตัวไอซีที่อยู่บนไอซีบนบอร์ด Processor อะไร และเลือก Processor ให้ตรงแค่นี้ก็สามารถ Upload โปรแกรมผ่านแล้วครับ

Posted on 08/12/201808/12/2018 by admin

Logistics automation

ระบบโลจิสติกส์ แบบอัตโนมัติ

Logistics automation

หมวดหมู่: Articles

แผ่นสะท้อนแสงโฟโตอิเล็กทริคเซนเซอร์ Photoelectric Sensor Reflectors Plate

วัดอุณหภูมิด้วยเทอร์โมคัปเปิล Thermocouple Type K MAX6675

Mirobot ROS Thailand

Objects moving on a conveyor belt using Open cv with Python

โปรแกรม PLC สตาร์ท สตาร์ เดลต้า

PLC เบื้องต้น

เริ่มต้นใช้งานระบบ DAQ อย่างง่ายโดยใช้ parallax.com PLX-DAQ Excel & Arduino from

การใช้งานจอ LCD 1602 แบบ i2c กับ Arduino

Arduino Playground – I2cScanner

ตัวอย่างการใช้งาน

ปัญหาการ Upload Code Arduino Nano

Logistics automation

ป้ายกำกับสินค้า