diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..9068464
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,10 @@
+all: deploy
+
+build:
+	pxt build
+
+deploy:
+	pxt deploy
+
+test:
+	pxt test
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..4d04be3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,63 @@
+# Grove
+
+A Microsoft MakeCode package for for Seeed Studio Grove module.
+
+## Basic usage
+
+Grove - Gesture
+```blocks
+// Create gesture events
+grove.onGesture(GroveGesture.Up, () => {
+    basic.showString("Up")
+})
+
+grove.onGesture(GroveGesture.Down, () => {
+    basic.showString("Down")
+})
+```
+
+Grove - Ultrasonic Ranger
+```blocks
+// Measure distance in centimeters, specify the signal pin
+let distance = Grove_Ultrasonic_Ranger.measureInCentimeters(DigitalPin.P0);
+
+// Measure distance in inches, specify the signal pin
+let distance = Grove_Ultrasonic_Ranger.measureInInches(DigitalPin.P0);
+```
+
+Grove - 4 digital display
+```blocks
+// Create a 4 Digital Display driver, specify the clk and data pin
+let display = Grove_4_Digital_Display.create(DigitalPin.P0, DigitalPin.P1);
+
+// Set the brightness level
+display.set(BrightnessLevel.LEVEL_7);
+
+// Start display value
+display.show(1234);
+```
+
+## More operation
+
+Grove - 4 digital display
+```blocks
+// After create a 4 Digital Display driver, it can display number "1234" one by one
+display.bit(0, 1);
+display.bit(1, 2)
+display.bit(2, 3);
+display.bit(3, 4)
+```
+
+Use ``point()`` to open or close point dispay.
+
+Use ``clear()`` to clean display.
+
+## License
+
+MIT
+
+## Supported targets
+
+* for PXT/microbit
+(The metadata above is needed for package search.)
+
diff --git a/main.ts b/main.ts
new file mode 100644
index 0000000..82cef39
--- /dev/null
+++ b/main.ts
@@ -0,0 +1,417 @@
+
+const initRegisterArray: number[] = [
+    0xEF, 0x00, 0x32, 0x29, 0x33, 0x01, 0x34, 0x00, 0x35, 0x01, 0x36, 0x00, 0x37, 0x07, 0x38, 0x17,
+    0x39, 0x06, 0x3A, 0x12, 0x3F, 0x00, 0x40, 0x02, 0x41, 0xFF, 0x42, 0x01, 0x46, 0x2D, 0x47, 0x0F,
+    0x48, 0x3C, 0x49, 0x00, 0x4A, 0x1E, 0x4B, 0x00, 0x4C, 0x20, 0x4D, 0x00, 0x4E, 0x1A, 0x4F, 0x14,
+    0x50, 0x00, 0x51, 0x10, 0x52, 0x00, 0x5C, 0x02, 0x5D, 0x00, 0x5E, 0x10, 0x5F, 0x3F, 0x60, 0x27,
+    0x61, 0x28, 0x62, 0x00, 0x63, 0x03, 0x64, 0xF7, 0x65, 0x03, 0x66, 0xD9, 0x67, 0x03, 0x68, 0x01,
+    0x69, 0xC8, 0x6A, 0x40, 0x6D, 0x04, 0x6E, 0x00, 0x6F, 0x00, 0x70, 0x80, 0x71, 0x00, 0x72, 0x00,
+    0x73, 0x00, 0x74, 0xF0, 0x75, 0x00, 0x80, 0x42, 0x81, 0x44, 0x82, 0x04, 0x83, 0x20, 0x84, 0x20,
+    0x85, 0x00, 0x86, 0x10, 0x87, 0x00, 0x88, 0x05, 0x89, 0x18, 0x8A, 0x10, 0x8B, 0x01, 0x8C, 0x37,
+    0x8D, 0x00, 0x8E, 0xF0, 0x8F, 0x81, 0x90, 0x06, 0x91, 0x06, 0x92, 0x1E, 0x93, 0x0D, 0x94, 0x0A,
+    0x95, 0x0A, 0x96, 0x0C, 0x97, 0x05, 0x98, 0x0A, 0x99, 0x41, 0x9A, 0x14, 0x9B, 0x0A, 0x9C, 0x3F,
+    0x9D, 0x33, 0x9E, 0xAE, 0x9F, 0xF9, 0xA0, 0x48, 0xA1, 0x13, 0xA2, 0x10, 0xA3, 0x08, 0xA4, 0x30,
+    0xA5, 0x19, 0xA6, 0x10, 0xA7, 0x08, 0xA8, 0x24, 0xA9, 0x04, 0xAA, 0x1E, 0xAB, 0x1E, 0xCC, 0x19,
+    0xCD, 0x0B, 0xCE, 0x13, 0xCF, 0x64, 0xD0, 0x21, 0xD1, 0x0F, 0xD2, 0x88, 0xE0, 0x01, 0xE1, 0x04,
+    0xE2, 0x41, 0xE3, 0xD6, 0xE4, 0x00, 0xE5, 0x0C, 0xE6, 0x0A, 0xE7, 0x00, 0xE8, 0x00, 0xE9, 0x00,
+    0xEE, 0x07, 0xEF, 0x01, 0x00, 0x1E, 0x01, 0x1E, 0x02, 0x0F, 0x03, 0x10, 0x04, 0x02, 0x05, 0x00,
+    0x06, 0xB0, 0x07, 0x04, 0x08, 0x0D, 0x09, 0x0E, 0x0A, 0x9C, 0x0B, 0x04, 0x0C, 0x05, 0x0D, 0x0F,
+    0x0E, 0x02, 0x0F, 0x12, 0x10, 0x02, 0x11, 0x02, 0x12, 0x00, 0x13, 0x01, 0x14, 0x05, 0x15, 0x07,
+    0x16, 0x05, 0x17, 0x07, 0x18, 0x01, 0x19, 0x04, 0x1A, 0x05, 0x1B, 0x0C, 0x1C, 0x2A, 0x1D, 0x01,
+    0x1E, 0x00, 0x21, 0x00, 0x22, 0x00, 0x23, 0x00, 0x25, 0x01, 0x26, 0x00, 0x27, 0x39, 0x28, 0x7F,
+    0x29, 0x08, 0x30, 0x03, 0x31, 0x00, 0x32, 0x1A, 0x33, 0x1A, 0x34, 0x07, 0x35, 0x07, 0x36, 0x01,
+    0x37, 0xFF, 0x38, 0x36, 0x39, 0x07, 0x3A, 0x00, 0x3E, 0xFF, 0x3F, 0x00, 0x40, 0x77, 0x41, 0x40,
+    0x42, 0x00, 0x43, 0x30, 0x44, 0xA0, 0x45, 0x5C, 0x46, 0x00, 0x47, 0x00, 0x48, 0x58, 0x4A, 0x1E,
+    0x4B, 0x1E, 0x4C, 0x00, 0x4D, 0x00, 0x4E, 0xA0, 0x4F, 0x80, 0x50, 0x00, 0x51, 0x00, 0x52, 0x00,
+    0x53, 0x00, 0x54, 0x00, 0x57, 0x80, 0x59, 0x10, 0x5A, 0x08, 0x5B, 0x94, 0x5C, 0xE8, 0x5D, 0x08,
+    0x5E, 0x3D, 0x5F, 0x99, 0x60, 0x45, 0x61, 0x40, 0x63, 0x2D, 0x64, 0x02, 0x65, 0x96, 0x66, 0x00,
+    0x67, 0x97, 0x68, 0x01, 0x69, 0xCD, 0x6A, 0x01, 0x6B, 0xB0, 0x6C, 0x04, 0x6D, 0x2C, 0x6E, 0x01,
+    0x6F, 0x32, 0x71, 0x00, 0x72, 0x01, 0x73, 0x35, 0x74, 0x00, 0x75, 0x33, 0x76, 0x31, 0x77, 0x01,
+    0x7C, 0x84, 0x7D, 0x03, 0x7E, 0x01
+];
+
+let TubeTab: number [] = [
+    0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07,
+    0x7f, 0x6f, 0x77, 0x7c, 0x39, 0x5e, 0x79, 0x71
+];
+
+/**
+ * Grove Gestures
+ */
+enum GroveGesture {
+    //% block=None
+    None = 0,
+    //% block=Right
+    Right = 1,
+    //% block=Left
+    Left = 2,
+    //% block=Up
+    Up = 3,
+    //% block=Down
+    Down = 4,
+    //% block=Forward
+    Forward = 5,
+    //% block=Backward
+    Backward = 6,
+    //% block=Clockwise
+    Clockwise = 7,
+    //% block=Anticlockwise
+    Anticlockwise = 8,
+    //% block=Wave
+    Wave = 9
+}
+
+/**
+ * Functions to operate Grove module.
+ */
+//% weight=10 color=#9F79EE icon="\uf108" block="Grove"
+namespace grove {
+    const gestureEventId = 3100;
+    let lastGesture = GroveGesture.None;
+    let paj7620: PAJ7620 = undefined;
+
+    /**
+     * Do something when a gesture is detected by Grove - Gesture
+     * @param gesture type of gesture to detect
+     * @param handler code to run
+     */
+    //% blockId=grove_gesture_create_event block="on Gesture|%gesture"
+    export function onGesture(gesture: GroveGesture, handler: Action) {
+        control.onEvent(gestureEventId, gesture, handler);
+        if (!paj7620) {
+            paj7620.init();
+            control.inBackground(() => {
+                const gesture = paj7620.read();
+                if (gesture != lastGesture) {
+                    lastGesture = gesture;
+                    control.raiseEvent(gestureEventId, lastGesture);
+                }
+            })
+        }
+    }
+    
+    /**
+     * Create a new driver of Grove - Ultrasonic Sensor to measure distances in cm
+     * @param pin signal pin of ultrasonic ranger module
+     */
+    //% blockId=grove_ultrasonic_centimeters block="Ultrasonic Sensor (in cm) at|%pin"
+    export function measureInCentimeters(pin: DigitalPin): number
+    {
+        let duration = 0;
+        let RangeInCentimeters = 0;
+        
+        pins.digitalWritePin(pin, 0);
+        control.waitMicros(2);
+        pins.digitalWritePin(pin, 1);
+        control.waitMicros(5);
+        pins.digitalWritePin(pin, 0);
+        
+        duration = pins.pulseIn(pin, PulseValue.High);
+        
+        RangeInCentimeters = duration * 153 / 29 / 2 / 100;
+        
+        return RangeInCentimeters;
+    }
+    
+    /**
+     * Create a new driver Grove - Ultrasonic Sensor to measure distances in inch
+     * @param pin signal pin of ultrasonic ranger module
+     */
+    //% blockId=grove_ultrasonic_inches block="Ultrasonic Sensor (in inch) at|%pin"
+    export function measureInInches(pin: DigitalPin): number
+    {
+        let duration = 0;
+        let RangeInCentimeters = 0;
+        
+        pins.digitalWritePin(pin, 0);
+        control.waitMicros(2);
+        pins.digitalWritePin(pin, 1);
+        control.waitMicros(5);
+        pins.digitalWritePin(pin, 0);
+        
+        duration = pins.pulseIn(pin, PulseValue.High);
+        
+        RangeInCentimeters = duration * 153 / 74 / 2 / 100;
+        
+        return RangeInCentimeters;
+    }
+    
+    /**
+     * 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 dislay(clkPin: DigitalPin, dataPin: DigitalPin): TM1637
+    {
+        let display = new TM1637();
+        
+        display.clkPin = clkPin;
+        display.dataPin = dataPin;
+        display.brightnessLevel = 0;
+        display.pointFlag = false;
+        
+        return display;
+    }
+    
+    /**
+     * 
+     */
+    export class PAJ7620 {
+        private paj7620WriteReg(addr: number, cmd: number) {
+            let buf: Buffer = pins.createBuffer(2);
+
+            buf[0] = addr;
+            buf[1] = cmd;
+
+            pins.i2cWriteBuffer(0x73, buf, false);
+        }
+
+        private paj7620ReadReg(addr: number): number {
+            let buf: Buffer = pins.createBuffer(1);
+
+            buf[0] = addr;
+
+            pins.i2cWriteBuffer(0x73, buf, false);
+
+            buf = pins.i2cReadBuffer(0x73, 1, false);
+
+            return buf[0];
+        }
+
+        private paj7620SelectBank(bank: number) {
+            if (bank == 0) this.paj7620WriteReg(0xEF, 0);
+            else if (bank == 1) this.paj7620WriteReg(0xEF, 1);
+        }
+
+        private paj7620Init() {
+            let temp = 0;
+
+            this.paj7620SelectBank(0);
+
+            temp = this.paj7620ReadReg(0);
+            if (temp == 0x20) {
+                for (let i = 0; i < 438; i += 2) {
+                    this.paj7620WriteReg(initRegisterArray[i], initRegisterArray[i + 1]);
+                }
+            }
+
+            this.paj7620SelectBank(0);
+        }
+
+        /**
+         * Create a new driver of Grove - Gesture
+         */
+        //% blockId=grove_gesture_init block="%strip|initiate the Grove - Gesture"
+        //% advanced=true
+        init() {
+            this.paj7620Init();
+            basic.pause(200);
+        }
+
+        /**
+         * Detect and recognize the gestures from Grove - Gesture
+         */
+        //% blockId=grove_gesture_read block="%strip|get gesture"
+        //% advanced=true
+        read(): number {
+            let data = 0, result = 0;
+
+            data = this.paj7620ReadReg(0x43);
+            switch (data) {
+                case 0x01:
+                    result = GroveGesture.Right;
+                break;
+
+                case 0x02:
+                    result = GroveGesture.Left;
+                break;
+
+                case 0x04:
+                    result = GroveGesture.Up;
+                break;
+
+                case 0x08:
+                    result = GroveGesture.Down;
+                break;
+
+                case 0x10:
+                    result = GroveGesture.Forward;
+                break;
+
+                case 0x20:
+                    result = GroveGesture.Backward;
+                break;
+
+                case 0x40:
+                    result = GroveGesture.Clockwise;
+                break;
+
+                case 0x80:
+                    result = GroveGesture.Anticlockwise;
+                break;
+
+                default:
+                    data = this.paj7620ReadReg(0x44);
+                    if (data == 0x01)
+                        result = GroveGesture.Wave;
+                break;
+            }
+
+            return result;
+        }
+    }
+    
+    /**
+     * 
+     */
+    export class TM1637
+    {
+        clkPin: DigitalPin;
+        dataPin: DigitalPin;
+        brightnessLevel: number;     
+        pointFlag: boolean;
+
+        private writeByte(wrData: number) 
+        {
+            for(let i = 0; i < 8; i ++)
+            {
+                pins.digitalWritePin(this.clkPin, 0);
+                if(wrData & 0x01)pins.digitalWritePin(this.dataPin, 1);
+                else pins.digitalWritePin(this.dataPin, 0);
+                wrData >>= 1;
+                pins.digitalWritePin(this.clkPin, 1);
+            }
+            
+            pins.digitalWritePin(this.clkPin, 0); // Wait for ACK
+            pins.digitalWritePin(this.dataPin, 1);
+            pins.digitalWritePin(this.clkPin, 1);
+        }
+        
+        private start()
+        {
+            pins.digitalWritePin(this.clkPin, 1);
+            pins.digitalWritePin(this.dataPin, 1);
+            pins.digitalWritePin(this.dataPin, 0);
+            pins.digitalWritePin(this.clkPin, 0);
+        }
+        
+        private stop()
+        {
+            pins.digitalWritePin(this.clkPin, 0);
+            pins.digitalWritePin(this.dataPin, 0);
+            pins.digitalWritePin(this.clkPin, 1);
+            pins.digitalWritePin(this.dataPin, 1);
+        }
+        
+        private coding(dispData: number): number
+        {
+            let pointData = 0;
+            
+            if(this.pointFlag == true)pointData = 0x80;
+            else if(this.pointFlag == false)pointData = 0;
+            
+            if(dispData == 0x7f)dispData = 0x00 + pointData;
+            else dispData = TubeTab[dispData] + pointData;
+            
+            return dispData;
+        } 
+
+        /**
+         * Show a 4 digits number on display
+         * @param dispData value of number
+         */
+        //% blockId=grove_tm1637_display_number block="%strip|show number|%dispData"
+        show(dispData: number)
+        {       
+            if(dispData < 10)
+            {
+                this.bit(3, dispData);
+                this.bit(2, 0x7f);
+                this.bit(1, 0x7f);
+                this.bit(0, 0x7f);
+            }
+            else if(dispData < 100)
+            {
+                this.bit(3, dispData % 10);
+                this.bit(2, (dispData / 10) % 10);
+                this.bit(1, 0x7f);
+                this.bit(0, 0x7f);
+            }
+            else if(dispData < 1000)
+            {
+                this.bit(3, dispData % 10);
+                this.bit(2, (dispData / 10) % 10);
+                this.bit(1, (dispData / 100) % 10);
+                this.bit(0, 0x7f);
+            }
+            else
+            {
+                this.bit(3, dispData % 10);
+                this.bit(2, (dispData / 10) % 10);
+                this.bit(1, (dispData / 100) % 10);
+                this.bit(0, (dispData / 1000) % 10);
+            }
+        }
+        
+        /**
+         * Set the brightness level of display at from 0 to 7
+         * @param level value of brightness level
+         */
+        //% blockId=grove_tm1637_set_display_level block="%strip|brightness level to|%level"
+        //% level.min=0 level.max=7
+        set(level: number)
+        {
+            this.brightnessLevel = level;
+        }
+        
+        /**
+         * Show a single number from 0 to 9 at a specified digit of Grove - 4-Digit Display
+         * @param bitAddr value of bit number
+         * @param dispData value of number
+         */
+        //% blockId=grove_tm1637_display_bit block="%strip|show single number|%dispData|at digit|%bitAddr"
+        //% bitAddr.min=0 bitAddr.max=3
+        //% dispData.min=0 dispData.max=9
+        //% advanced=true
+        bit(bitAddr: number, dispData: number)
+        {
+            let segData = 0;
+            segData = this.coding(dispData);
+            this.start();
+            this.writeByte(0x44);
+            this.stop();
+            this.start();
+            this.writeByte(bitAddr | 0xc0);
+            this.writeByte(segData);
+            this.stop();
+            this.start();
+            this.writeByte(0x88 + this.brightnessLevel);
+            this.stop();
+        }
+        
+        /**
+         * Turn on or off the colon point on Grove - 4-Digit Display
+         * @param pointEn value of point switch
+         */
+        //% blockId=grove_tm1637_display_point block="%strip|turn|%point|colon point"
+        //% advanced=true
+        point(point: boolean)
+        {
+            this.pointFlag = point;
+        }
+        
+        /**
+         * Clear the display
+         */
+        //% blockId=grove_tm1637_display_clear block="%strip|clear"
+        //% advanced=true
+        clear()
+        {
+            this.bit(0x00, 0x7f);
+            this.bit(0x01, 0x7f);
+            this.bit(0x02, 0x7f);
+            this.bit(0x03, 0x7f);
+        }
+    }
+}
\ No newline at end of file
diff --git a/pxt.json b/pxt.json
new file mode 100644
index 0000000..4c55cc6
--- /dev/null
+++ b/pxt.json
@@ -0,0 +1,17 @@
+{
+    "name": "Grove",
+    "version": "0.1.0",
+    "description": "A Microsoft MakeCode package for Seeed Studio Grove module",
+    "license": "MIT",
+    "dependencies": {
+        "core": "*"
+    },
+    "files": [
+        "README.md",
+        "main.ts"
+    ],
+    "testFiles": [
+        "test.ts"
+    ],
+    "public": true
+}
\ No newline at end of file
diff --git a/test.ts b/test.ts
new file mode 100644
index 0000000..2161c70
--- /dev/null
+++ b/test.ts
@@ -0,0 +1,55 @@
+grove.onGesture(GroveGesture.Up, () => {
+    basic.showString("U")
+})
+grove.onGesture(GroveGesture.Down, () => {
+    basic.showString("D")
+})
+grove.onGesture(GroveGesture.Right, () => {
+    basic.showString("R")
+})
+grove.onGesture(GroveGesture.Left, () => {
+    basic.showString("L")
+})
+grove.onGesture(GroveGesture.Wave, () => {
+    basic.showString("W")
+})
+grove.onGesture(GroveGesture.Clockwise, () => {
+    basic.showString("C")
+})
+grove.onGesture(GroveGesture.Anticlockwise, () => {
+    basic.showString("A")
+})
+
+{
+    let display = grove.dislay(DigitalPin.P2, DigitalPin.P16);
+    let data = 0;
+
+    display.point(true);
+    display.clear();
+    display.bit(3, 3);
+    basic.pause(500);
+    
+    display.point(false);
+    display.clear();
+    display.bit(2, 2);
+    basic.pause(500);
+    
+    display.point(true);
+    display.clear();
+    display.bit(1, 1);
+    basic.pause(500);
+    
+    display.point(false);
+    display.clear();
+    display.bit(0, 0);
+    basic.pause(500);
+    
+    display.set(7);
+    while(true)
+    {
+        display.show(data ++);
+        let distance = grove.measureInCentimeters(DigitalPin.P0);
+        basic.showNumber(distance);
+        basic.pause(500);
+    }
+}
\ No newline at end of file
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..a2079ff
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,9 @@
+{
+    "compilerOptions": {
+        "target": "es5",
+        "noImplicitAny": true,
+        "outDir": "built",
+        "rootDir": "."
+    },
+    "exclude": ["pxt_modules/**/*test.ts"]
+}