remove onGesture and onJoystick event

main.ts

@@ -490,6 +490,26 @@ namespace grove {
         return RangeInInches;
     }
     
+    /**
+     * Create a new driver Grove - 4-Digit Display
+     * @param clkPin value of clk pin number
+     * @param dataPin value of data pin number
+     */
+    //% blockId=grove_tm1637_create block="4-Digit Display at|%clkPin|and|%dataPin"
+    export function createDisplay(clkPin: DigitalPin, dataPin: DigitalPin): TM1637
+    {
+        let display = new TM1637();
+        
+        display.buf = pins.createBuffer(4);
+        display.clkPin = clkPin;
+        display.dataPin = dataPin;
+        display.brightnessLevel = 0;
+        display.pointFlag = false;
+        display.clear();
+        
+        return display;
+    }
+ 
     /**
      * init Grove Gesture modules
      * 
@@ -517,4 +537,5 @@ namespace grove {
     export function getJoystick(xpin: AnalogPin, ypin: AnalogPin): number {
         return joystick.read(xpin, ypin);
     }
+
 }