Robot Arm Movement

Using Arduino UNO & Servo Motor Developed with React Javascript

What's New?

You can now run the application using a Shell Script

For Linux/Mac Users:

chmod +x start.sh
./start.sh

For Windows Users: IMPORTANT: MAKE SURE TO UNBLOCK THE POWERSHELL SCRIPT FROM THE FILE PROPERTIES

Powershell.exe -ExecutionPolicy RemoteSigned -File .\start.ps1

Database implementation to store latest movement and a database logger to store all movements using mysql

What are the benefits of using Database?

Storing latest movement and all movements in a database is a good way to keep track of the movements of the robot arm. Whenever there was any maintenance or bug fix, the database can be used to keep track of the changes

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Server

• Using express server & johnny-five to control the robot arm
• johnny-five is a library for controlling the robot arm

Client

• Using react to render the UI
• react-speech-recognition is a library for speech recognition

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NOTE: We need Arduino UNO and Arduino IDE to achieve this We will download Firmata and Arduino IDE and for the Arduino to run with the johnny-five library, we need to deploy firmata to the Arduino.

1. Open Arduino IDE

2. Create example Sketch from Files > Examples > StandardFirmataPlus

3. Upload the sketch to the Arduino

   for more troubleshooting instructions, please refer to this

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Arduino Setup

I used a Servo and Connected it to pin 8 with 5V of Power and GND.

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Starting the project

Make sure you did the Important Notice

- Server-Side

$ cd server
/server █
$ yarn
[1/4] installing dependencies...
[2/4] ...
[3/4] ...
[4/4] ...
$ yarn start
Listening on port 4000

- Client-Side

$ cd client
/client █
$ yarn
[1/4] installing dependencies...
[2/4] ...
[3/4] ...
[4/4] ...
$ yarn start
Compiled successfully !

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Walk-through

1. Open Visual Studio Code or any other text editor.
2. Start using two terminals (server & client)
3. Install Dependencies using yarn on both terminals
4. Plug up your Arduino you should receive the following output:

 #Timestamp#    #Status#           #Port#
1660235534040   Available   /dev/tty.usbserial-110
1660235534043   Connected   /dev/tty.usbserial-110

5. Start up the project using yarn start on the server terminal and yarn start on the client terminal
6. Open http://localhost:3000 in the browser if didn't opened automatically
7. Test server connection by opening http://localhost:4000/ in the browser and receive I am alive response
8. You're good to go!

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Troubleshooting

If you have a problem with node/npm/yarn, try to identify the problem and fix it.

Common Problems:

• Versioning Problems, keep everything up to date, download the latest version of Node.js LTS and Yarn
• What is yarn? yarn is a package manager for the JavaScript programming language. It is a tool for managing dependencies. to Download yarn run npm i -g yarn and you're good to go.
• Arduino Problems? Which problem? did you upload the Firmata sketch to the Arduino? If you did, try to upload the sketch again. If you still have problems, try to reset the Arduino. Press and hold the button for maybe 11 seconds or so. if the problem persist check the ports and make sure you have the correct Arduino connected. and to the same port as identified or for MacBook/Linux Users in the terminal, run ls /dev/tty.* to see which port is connected. for Windows Users, run devmgmt.msc and select Serial Ports to see which port is connected. Try to remove the port from johnny-five Board and then try to reconnect. Make sure to connect USB2.0 with a USB2.0 Serial.
• Everything is working except the Servo is not moving! What is wrong? check the Servo pin number in the johnny-five Servo and make sure it is correct.

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Just4you (peekok)