Waijung 2 User Guide

Welcome to next section of tutorial on creating a web application to control a self-balancing robot using Aimagin Connect. Aimagin Connect is a versatile web-based platform that streamlines the development process, enabling users to create web applications through an intuitive drag and drop components, making it accessible even for those with minimal programming experience. Throughout this guide, we will demonstrate how to harness the power of Aimagin Connect to develop a web application that enables remote control of the M5Stack Bala2 robot. We will incorporate push buttons and design the interface to respond to both mouse and touch actions, ensuring compatibility with a wide range of devices, including mobile phones. Get ready to embark on a journey of innovation and convenience as we bring robotics control to your fingertips.

Aimagin Connect Reference: Aimagin Connect User Guide, RC Circuit Stand-alone web-based controller

 

Aimagin Connect Model: br_Self-Balancing Robot.amgcnt

Aimagin Connect Web app: br_export.zip

 

Step 1: Sign In to the Aimagin Analytics        

Sign into your Aimagin Analytics account.

Step 2: Open the Aimagin Connect

Select Aimagin Connect form the navigation bar.

Step 3: Rename the Project

Select and Rename the Project name.

Step 4: Add a new Page

Add new Page to the project and set the name and page title.

Step 5: Add a Flex

Select Grid from the Components and drag & drop Flex in the the page. Change the Background Color parameter of the Flex.

Step 6: Add a Label        

Add a Label from the Components under the Flex (drag and drop the Label on top of the Flex to make it child component).
Set the Content, Font size, Font color and Margin and padding parameters of the Label component.

Step 7: Add a Break Line

Select Grid and drag and drop a Break line on top of the Flex component.

Step 8: Add a Flex

Select Grid from the Components and drag & drop Flex in the the page. Remove the Background Color parameter of the Flex. Change the Flex-Property according to the following image.

Step 9: Add two Columns

Select Grid from the Components and drag & drop 2 Columns on top of the Flex. Set the parameters as following figures:

 

Step 10: Add a Flex

Select Grid from the Components and drag & drop Flex on top of the column. Remove the Background Color parameter of the Flex. Change the Flex-Property according to the following image.

Step 11: Add a Flex

Select Grid from the Components and drag & drop Flex on top of the last Flex. Remove the Background Color parameter of the Flex. Change the Flex-Property according to the following image.

Step 12: Copy and paste two Flex to the second Column        

Right-Click on the Flex to copy and right-click under neath the second column to paste.

Step 13: Add        a Label

Add a Label from the Components under the Flex (drag and drop the Label on top of the Flex to make it child component).

Set the Content, Font size, Font color and Text Alignment parameters of the Label component.

Step 14: Add buttons        

Add two buttons from the Components under the Flex (drag and drop the Buttons on top of the Flex to make it child component). Change the ID of the buttons to forward and backward. Remove the Text parameter value and change the Size parameter to Large and Custom Class parameter value to pushbuttons.

Step 15: Add Icon to forward button        

Add a HTML from the Components under the Button (drag and drop the HTML on top of the Button to make it child component).
Use Fontawesome to get HTML code snippet (<i class="fas fa-angle-double-up fa-2x"></i>) for the icons (only available free and version 5.15.4 Fontawesome icons in the Aimagin Connect Library). Use beat-animation as the Custom Class Parameter value.

Step 16: Add Icon to backward button        

Add a HTML from the Components under the Button (drag and drop the HTML on top of the Button to make it child component).
Use Fontawesome to get HTML code snippet (<i class="fas fa-angle-double-down fa-2x"></i>) for the icons (only available free and version 5.15.4 Fontawesome icons in the Aimagin Connect Library). Use beat-animation as the Custom Class Parameter value.

Step 17: Add        a Label

Add a Label from the Components under the Flex (drag and drop the Label on top of the Flex to make it child component).

Set the Content, Font size, Font color and Text Alignment parameters of the Label component.

Step 18: Add a Flex

Select Grid from the Components and drag & drop Flex on top of the last Flex. Remove the Background Color parameter of the Flex.

Step 19: Add buttons        

Add two buttons from the Components under the Flex (drag and drop the Buttons on top of the Flex to make it child component). Change the ID of the buttons to left and right . Remove the Text parameter value and change the Size parameter to Large and Custom Class parameter value to pushbuttons.

 

Step 20: Add Icon to left button        

Add a HTML from the Components under the Button (drag and drop the HTML on top of the Button to make it child component).
Use Fontawesome to get HTML code snippet (<i class="fas fa-angle-double-left fa-2x"></i>) for the icons (only available free and version 5.15.4 Fontawesome icons in the Aimagin Connect Library). Use beat-animation as the Custom Class Parameter value.

Step 21: Add Icon to right button        

Add a HTML from the Components under the Button (drag and drop the HTML on top of the Button to make it child component).
Use Fontawesome to get HTML code snippet (<i class="fas fa-angle-double-right fa-2x"></i>) for the icons (only available free and version 5.15.4 Fontawesome icons in the Aimagin Connect Library). Use beat-animation as the Custom Class Parameter value.

Step 22: Add a Flex        

Select Grid from the Components and drag & drop Flex in the the page. Change the Background Color parameter of the Flex. Change the Flex-Property according to the following image.

Step 23: Add a Label

Add a Label from the Components under the Flex (drag and drop the Label on top of the Flex to make it child component).

Set the Content, Font size, Font color and Text Alignment parameters of the Label component.

Step 24: Save and Preview        

Save the Aimagin Connect model and click on Preview.

Step 25: Add Callback code

In this step, callback code is added to the page init callback . The code sets up dynamic styles for the page, including a radial gradient background and interactive button and card styling. The script initializes remoteValues for directional movements and defines functions to handle button interactions. Event listeners are attached to buttons for mouse and touch events, updating styles and remoteValues accordingly. The sendDataToBoard function sends remoteValues to a board. Developers are advised to comment out the sendDataToBoard calls for previewing without sending data to the board during development of web application.

Callback code d3.select('head').append('style').html(
 `
body {
   /* Create a radial gradient background for a more dynamic look */
   background: radial-gradient(circle at center, rgb(0, 45, 85), black);
   /* Make sure the background covers the entire page */
   height: 100vh;
   margin: 0;
   background-repeat: no-repeat;
   background-attachment: fixed;
}
@keyframes beat {
 0% { transform: scale(1); }
 50% { transform: scale(1.1); }
 100% { transform: scale(1); }
}

.beat-animation {
 animation: beat 1s infinite;
}

.pushbuttons{
   color: rgb(0, 135, 255);
   background-color: rgba(255, 255, 255,0.1);
   width: 8.0rem;
   height: 8.0rem;
   border-radius: 15%;
   box-shadow: 0px 8px 15px rgba(0, 0, 0, 0.1);
   transition: all 0.3s ease 0s;
   border: 1px solid rgba(255, 255, 255, 0.3);
   backdrop-filter: blur(10px);
}

.pushbuttons:hover {
   background-color: rgba(255, 255, 255, 0.1);
   box-shadow: 0px 15px 20px rgba(0, 135, 255, 0.4);
   color: rgb(0, 135, 255);
   transform: translateY(-7px);
   border: none;
}

.card {
   display: flex;
   flex-direction: column;
   justify-content: center;
   align-items: center;
   background-color: rgba(255, 255, 255,0.1);
   border-radius: 15px;
   box-shadow: 0px 8px 15px rgba(0, 0, 0, 0.1);
   transition: all 0.3s ease 0s;
   border: 1px solid rgba(255, 255, 255, 0.3);
   backdrop-filter: blur(10px);
   margin: 10px;
}

.card:hover {
   background-color: rgba(255, 255, 255, 0.1);
   box-shadow: 0px 15px 20px rgba(0, 135, 255, 0.4);
   color: rgb(0, 135, 255);
   transform: translateY(-7px);
   border: none;
}

.card-title {
   font-size: 24px; /* Increase the font size */
   font-weight: bold;
   margin-bottom: 10px;
   color: rgb(0, 135, 255);
   text-shadow: 2px 2px rgba(0, 0, 0, 0.2);
   text-transform: uppercase; /* Make the title uppercase */
   letter-spacing: 2px; /* Increase the spacing between letters */
}
`
);

// Initialize remote values
let remoteValues = {
 forward: 0,
 backward: 0,
 left: 0,
 right: 0
};

function sendDataToBoard() {
 AmgCnt.Esp32.getData({
   mode: 'get_input',
   data: remoteValues
 }, function(res) {
   // Handle the response here
 });
}

// Get all buttons in the document
let buttons = document.getElementsByTagName("button");
console.log("Number of buttons: " + buttons.length); // Log the number of buttons

// Convert HTMLCollection to Array and add 'mousedown' and 'mouseup' event listeners to all buttons
Array.prototype.forEach.call(buttons, function(button, i) {
 console.log("Adding event listeners to button " + (i + 1)); // Log the current button number
 button.dataset.index = i;
 button.addEventListener('mouseover', function() {
   // ...

   // Check which button was hovered over and apply the corresponding transform
   if (i === 0) { // Forward button
     this.style.transform = "translateY(-7px)";
   } else if (i === 1) { // Backward button
     this.style.transform = "translateY(7px)";
   } else if (i === 2) { // Left button
     this.style.transform = "translateX(-7px)";
   } else if (i === 3) { // Right button
     this.style.transform = "translateX(7px)";
   }
 });
 // Add both mouse and touch event listeners
 button.addEventListener('mousedown', buttonPress, false);
 button.addEventListener('touchstart', buttonPress, false);

 button.addEventListener('mouseup', buttonRelease, false);
 button.addEventListener('touchend', buttonRelease, false);

 button.addEventListener('mouseleave', buttonRelease, false);
 button.addEventListener('touchcancel', buttonRelease, false);
});

// Define the event handlers
function buttonPress(e) {
 e.preventDefault(); // Prevent the default action to stop scrolling when touch is used
 this.style.backgroundColor = "rgb(0,135,255)";
 this.style.color = "rgb(253,253,253)";
 let index = Number(this.dataset.index); // Ensure the index is a number
 console.log("Button " + (index + 1) + " pressed");

 if (index === 0) {
   remoteValues.forward = 1;
   console.log("Moving Forward");
 } else if (index === 1) {
   console.log("Moving Backward");
   remoteValues.backward = 1;
 } else if (index === 2) {
   console.log("Turning Left");
   remoteValues.left = 1;
 } else if (index === 3) {
   console.log("Turning Right");
   remoteValues.right = 1;
 }

 sendDataToBoard();// comment this to preview (also line 169)
}

function buttonRelease(e) {
 e.preventDefault(); // Prevent the default action to stop scrolling when touch is used
 this.style.backgroundColor = "rgba(255, 255, 255, 0.1)";
 this.style.color = "rgb(0,135,255)";
 this.style.transform = "translateY(0px) translateX(0px)";
 let index = Number(this.dataset.index); // Ensure the index is a number
 console.log("Button " + (index + 1) + " released");

 if (index === 0) {
   remoteValues.forward = 0;
 } else if (index === 1) {
   remoteValues.backward = 0;
 } else if (index === 2) {
   remoteValues.left = 0;
 } else if (index === 3) {
   remoteValues.right = 0;
 }

 sendDataToBoard();// comment this to preview (also line 148)
}

Comment out the sendDataToBoard() in the Line 148 and 169 for previewing without sending data to the board during development of web application.

Step 26: Save as Web App

Click in the Save as Web app button to save the web page as web app.

 

Step 27: Create web app

Select Web app from the navigation panel and select button create to create the web app. Then select the saved web app.

Step 28: Edit Permission

Select Permission from the navigation panel and select edit. Select All button to give full permission and click on the update button.

 

Step 29: Export Esp32 Webapp package

Select the Export from the navigation panel. Web app will be appear on the navigation panel after giving the permission. Select add webapp to select created web app for export.

Step 30: Copy Aimagin Connect exported data to the SD Card

Open 'server' folder in export.rar and copy all to the SD Card

•core folder

•include folder

•system folder

•server.js

Aimagin Connect Web app: br_export.zip

 

 

Insert the SD Card to M5stack BALA2 Fire.