Published August 2, 2020 © LGPL

Monitoring Device

This project aimed at designing and fabricating a highly reliable, user-friendly device.

IntermediateFull instructions provided790

Things used in this project

Hardware components

SparkFun Triple Axis Accelerometer and Gyro Breakout - MPU-6050

Seeed Studio Grove - Round Force Sensor (FSR402)

Cytron Technologies Infrared Obstacle Sensor

Espressif ESP8266 ESP-01

Cytron Technologies Arduino Uno

SparkFun Logic Level Converter - Bi-Directional

Breadboard (generic)

Cytron Technologies resister 3.3k ohm

Software apps and online services

Blynk

Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)

Solder Wire, Lead Free

10 Pc. Jumper Wire Kit, 5 cm Long

Wire Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires

Story

This project aimed at designing and fabricating a highly reliable, user-friendly device to enable the user to perform the task needed effectively and efficiently. An Arduino UNO is used to control all the sensors and indicators in the arm effector and a wifi module to monitor the temperature of the 3D printed parts and monitor the location on the X, Y,Z-axis of the Omron collaborative robot arm effector through an application using a mobile phone.

It is observed that during the time taken for a 3D printed object to be fully printed takes many hours or even days. Hence, it is very difficult to hold the object in place while it is being printed and remove it exactly when printing is completely through manual labor. In this project, the students will develop a completely automated holding and placement of a 3D printed object, using a series of sensors and indicators at the rotational joint of the TM5 Series Robotic Arm with 6 rotational axes.

How it works

The simulator has its own different components monitoring different things around its surroundings.

Setting up Blynk

Install Blynk in your smartphone. Create an account and create a “New Project”.Enter your “Project name” (up to you), choose Arduino UNO in the “ChooseDevice” section. “Connection Type” select Wi-Fi.

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An Authentication Token will be emailed to you once that done and that Authentication Token will be used at the later part of the project.

In your Blynk project window, add all the widgets shown below by clicking the “+”sign at the top right of your smartphone. Altogether you should have 9 widgets.You can edit the layout of your project window by holding the widget and dragging it around.

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Once everything is done your project window should look like this.

And then that’s it for the Blynk application in your smartphone for now.

Configuring the ESP8266

Right out of the box the ESP8266 can be used right away but before that, we must change a few things.

Connect the ESP8266 accordingly to the picture to configure it.

**NOTE**

This is the way I connected it and it works for me. There are other ways to configure the ESP8266 safely. So, do it at your own risk.

**END NOTE**

Installing Blynk Library

Before you can program it. You need to have a Blynk Libraryadded to the program. This allows for communication between your Blynk in your smartphone, ESP8266, and the Arduino itself.

Download the zip file using this here

https://github.com/blynkkk/blynk-library/releases

Unzip it into your Arduino folder

FlowChart

Results

If you have followed the steps correctly. In the Blynk app on your smartphone, you should start to receive some values.

If you cover the Infrared Obstacle Sensor with your hand.You should be able to see an LED light-up

If you squeeze your thumb onto the Force Sensor, You should see that the values will keep increasing

If you cover the MPU 6050 with your finger, the temperature will rise slowly.

And lastly, if you move the breadboard slowly, you can seethe Acceleration and Gyroscope change its values.

(Include demo video here)

Try playing around with it! 😊

Code

#define BLYNK_PRINT Serial
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>
#include <Wire.h>

char auth[] = "jaSb-TjpYDLncLborLVE7IMo7A2xBl8i";  // enter your authentication token from your email
char ssid[] = "AndroidAP";                         // enter your wifi name
char pass[] = "mzfx7476";                          // enter your wifi password

#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3); // RX, TX

#define ESP8266_BAUD 9600       // change your ESP8266 baudrate here

ESP8266 wifi(&EspSerial);

const int MPU_addr = 0x68;      // I2C address of the MPU-6050
int16_t AcX, AcY, AcZ, Tmp, GyX, GyY, GyZ;

//coding for MPU-6050
void GetValues()
{
  Wire.beginTransmission(MPU_addr);
  Wire.write(0x3B);  // starting with register 0x3B (ACCEL_XOUT_H)
  Wire.endTransmission(false);
  Wire.requestFrom(MPU_addr, 14, true); // request a total of 14 registers

  AcX = Wire.read() << 8 | Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)
  AcY = Wire.read() << 8 | Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)
  AcZ = Wire.read() << 8 | Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)
  Tmp = Wire.read() << 8 | Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
  GyX = Wire.read() << 8 | Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44 (GYRO_XOUT_L)
  GyY = Wire.read() << 8 | Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46 (GYRO_YOUT_L)
  GyZ = Wire.read() << 8 | Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48 (GYRO_ZOUT_L)
  
  Blynk.virtualWrite(3, AcX/16384.);
  Blynk.virtualWrite(4, AcY/16384.);
  Blynk.virtualWrite(5, AcZ/16384.);
  Blynk.virtualWrite(6, GyX/131.);
  Blynk.virtualWrite(7, GyY/131.);
  Blynk.virtualWrite(8, GyZ/131.);
  Blynk.virtualWrite(9, Tmp/340.+36.53);

}

WidgetLED led1(V1);    //register to virtual pin 1
BlynkTimer timer;      // blynk timer delay
int ir = 7;            // declare ir sensor to digital pin 7
int x = HIGH;          // declare variable initally as high
int fsr = A3;          // declare fsr as A3
int fsrRead;           // initialize fsrRead
// coding for IR Sensor
void LedWidget()
{
x = digitalRead(ir);
if(x == LOW)
{
  led1.on();
}
else
{
   led1.off();
}
}



// Coding for FSR
void FSR()
{
 fsrRead = analogRead(fsr);
 Blynk.virtualWrite(V2,fsrRead);
}
void setup()
{
  Serial.begin(9600);
  pinMode(ir,INPUT);
  EspSerial.begin(ESP8266_BAUD);
  delay(10);
  Blynk.begin(auth, wifi, ssid, pass);
  Wire.begin();
  Wire.beginTransmission(MPU_addr);
  Wire.write(0x6B);                       // PWR_MGMT_1 register
  Wire.write(0);                          // set to zero (wakes up the MPU-6050)
  Wire.endTransmission(true);
  timer.setInterval(1000L, LedWidget);
  timer.setInterval(1000L, FSR);
  timer.setInterval(200L, GetValues);
}
void loop()
{
  Blynk.run();
  timer.run();
}

#define BLYNK_PRINT Serial
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>
#include <Wire.h>

char auth[] = "jaSb-TjpYDLncLborLVE7IMo7A2xBl8i";  // enter your authentication token from your email
char ssid[] = "AndroidAP";                         // enter your wifi name
char pass[] = "mzfx7476";                          // enter your wifi password

#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3); // RX, TX

#define ESP8266_BAUD 9600       // change your ESP8266 baudrate here

ESP8266 wifi(&EspSerial);

const int MPU_addr = 0x68;      // I2C address of the MPU-6050
int16_t AcX, AcY, AcZ, Tmp, GyX, GyY, GyZ;

//coding for MPU-6050
void GetValues()
{
  Wire.beginTransmission(MPU_addr);
  Wire.write(0x3B);  // starting with register 0x3B (ACCEL_XOUT_H)
  Wire.endTransmission(false);
  Wire.requestFrom(MPU_addr, 14, true); // request a total of 14 registers

  AcX = Wire.read() << 8 | Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)
  AcY = Wire.read() << 8 | Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)
  AcZ = Wire.read() << 8 | Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)
  Tmp = Wire.read() << 8 | Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)
  GyX = Wire.read() << 8 | Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44 (GYRO_XOUT_L)
  GyY = Wire.read() << 8 | Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46 (GYRO_YOUT_L)
  GyZ = Wire.read() << 8 | Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48 (GYRO_ZOUT_L)
  
  Blynk.virtualWrite(3, AcX/16384.);
  Blynk.virtualWrite(4, AcY/16384.);
  Blynk.virtualWrite(5, AcZ/16384.);
  Blynk.virtualWrite(6, GyX/131.);
  Blynk.virtualWrite(7, GyY/131.);
  Blynk.virtualWrite(8, GyZ/131.);
  Blynk.virtualWrite(9, Tmp/340.+36.53);
}

WidgetLED led1(V1);    //register to virtual pin 1
BlynkTimer timer;      // blynk timer delay
int ir = 7;            // declare ir sensor to digital pin 7
int x = HIGH;          // declare variable initally as high
int fsr = A3;          // declare fsr as A3
int fsrRead;           // initialize fsrRead
int reset = 8;         // declare esp8 to digital pin 8

// coding for IR Sensor
void LedWidget()
{
x = digitalRead(ir);
if(x == LOW)
{
  led1.on();
  digitalWrite(reset, LOW);
}
else
{
   led1.off();
}
}

void FSR()      // Coding for FSR
{
 fsrRead = analogRead(fsr);
 Blynk.virtualWrite(V2,fsrRead);
}
void setup()
{
  Serial.begin(9600);
  pinMode(ir,INPUT);
  pinMode(reset,OUTPUT);
  digitalWrite(reset,HIGH);
  EspSerial.begin(ESP8266_BAUD);
  delay(10);
  Blynk.begin(auth, wifi, ssid, pass);
  Wire.begin();
  Wire.beginTransmission(MPU_addr);
  Wire.write(0x6B);                       // PWR_MGMT_1 register
  Wire.write(0);                          // set to zero (wakes up the MPU-6050)
  Wire.endTransmission(true);
  timer.setInterval(1000L, LedWidget);
  timer.setInterval(1000L, FSR);
  timer.setInterval(200L, GetValues);
}
void loop()
{
  Blynk.run();  
  timer.run();
}

Credits

manfred12717

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Monitoring Device

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

schematic circuit diagram

Code

Arduino Coding

Arduino codes

Credits

manfred12717

Comments

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Monitoring Device

Monitoring Device

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

schematic circuit diagram

Code

Arduino Coding

Arduino codes

Credits

manfred12717

Comments

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