Js example

1. Parse the communication protocol and draw a curve

					(function main() {
						var str = receive.getString(); // Read the Received string
						receive.write(str); 		   // Prints the received characters
						receive.write(" -> ", "red");  // Print the arrow
						
						var buf = util.hexStringToBytes(str); 	   // Turn the received hex string into an array.
						var val1 = util.bytesToInteger(buf, 7, 2); // val1 Turn the array into integers by index and length
						var val2 = util.bytesToInteger(buf, 9, 2); // val2
						receive.write('val1=' + val1 + " ", "LawnGreen"); //Print the converted integer
						receive.write('val2=' + val2, "yellow");
						receive.write("\r\n"); //Print line breaks for easy observation.
						
						chart.write("val1=" + val1 + "\n"); // Draw to waveform interface. The name is val1
						chart.write("val2=" + val2 + "\n"); // Draw to waveform interface. The name is val2
					})();
				

2. Gets the timestamp string

					// Format  10:48:59.671  h:m:s.ms
					function timeToString() {
						let d = new Date();
						let h = d.getHours().toString().padStart(2, '0');
						let m = d.getMinutes().toString().padStart(2, '0');
						let s = d.getSeconds().toString().padStart(2, '0');
						let ms = d.getMilliseconds().toString().padStart(3, '0');
						return h + ":" + m + ":" + s + "." + ms;
					}
				

3. Convert hexadecimal string to decimal

                    /********************************
                    *
                    * Notes: Convert hexadecimal string to decimal
                    *
                    *
                    *
                    *
                    *******************************/
                    
                    {
                        let str = receive.getString();       //Read the received string
                        receive.write(str);                  //output to receiving window
                        receive.write(" -> ", "DarkOrange"); //output arrow
                        
                        let buf = util.hexStringToBytes(str);     //Convert to byte array
                        let val = util.bytesToInteger(buf, 0, 2); // convert to int16;
                        
                        console.log(val); //Print to output window
                        receive.write(val.toString(), "DarkOrange"); //Output the converted value
                    }

                    
                

4. Convert integer to string

                    val = 10;
                    let str1 = val.toString();   //Convert decimal string '10'
                    let str2 = val.toString(16); //Convert hexadecimal string 'a'
                    let str3 = val.toString(8);  //Convert octal string '12'
                    let str4 = val.toString(2);  //Convert binary string '1010'
                    let str5 = val.toString(2).padStart(8, '0'); //Convert a binary string with less than 8 digits and fill it with '0'  '00001010'
                

5. Print function source code

                                    (function main() {
                                        console.dir(util.bytesToInteger);
                                    })();