Update Usage.md

Author: bitcode-tech

extras/docs/Usage.md

@@ -229,5 +229,49 @@ Control blinking by digit. This function controls the blinking property of one d
 The following Sketch uses Serial1 as display port, displays counts from 0-999 in both decimal and hexdecimal format and a float point number starting form 1.23 increased by 0.01 each step. The display changed every second.
 
 ```c
+#include <UART_7Seg_Display.h>
 
+#define	LED_SERIAL	Serial1		// By default this code uses Serial1 as LED display port
+// If you are using Arduino with only 1 Serial (such as UNO), you may want to disable 
+// the above line and use the following setting:
+// #include <SoftwareSerial.h>
+// #define LED_SERIAL	swSerial
+// SoftwareSerial swSerial(11, 12);          // creating SoftwareSerial instance, using pin 11 as Rx, 12 as Tx (Rx not used in this example)
+
+UART_7Seg_Display      Disp(LED_SERIAL);        // creating display driver instance
+
+
+uint16_t cnt=0;
+float x=1.23;
+
+void setup()
+{
+	Serial.begin(115200);		 // Initializing printing serial port
+    LED_SERIAL.begin(9600);      // Initializing LED display serial port
+    Disp.clear();                // Clear any display contents
+}
+
+void loop()
+{
+    Serial.print("Disaplying in decimal : ");
+    Serial.println(cnt, DEC);
+    Disp.displayDec(cnt, 0, 3);        // Display cnt as decimal number on DIG0-DIG2 (3 digits wide)
+    delay(1000);
+    Serial.print("Disaplying in hexdecimal : ");
+    Serial.println(cnt, HEX);
+    Disp.displayHex(cnt, 0, 4);			// Display cnt as hexdecimal on DIG0-DIG3 (4 digits wide)
+    delay(1000);
+    Serial.print("Disaplying in float : ");
+    Serial.println(x,2);
+    Disp.displayFloat(x, 0, 3, 2);		// Display x as float number on DIG0-DIG2, 2 digits after decimal point
+    Disp.sendCmd(SEG_ON, 0x17);			// Turn on the decimal point on DIG2 (segment address 0x17, see datasheets)
+    delay(1000);
+    Disp.sendCmd(SEG_OFF, 0x17);		// Turn off the decimal point on DIG2
+    cnt = cnt + 1;
+    if (cnt == 1000)
+    {
+        cnt = 0;
+    }
+    x = x+0.01;
+}
 ```