seeed-studio/pxt-grove 0.7.3 GitHub

Grove

A Microsoft MakeCode package for for Seeed Studio Grove module.

Basic usage

Grove - Gesture

get gesture model.

grove.onGesture(GroveGesture.Up, () => {
    basic.showString("Up");
})
grove.onGesture(GroveGesture.Down, () => {
    basic.showString("Down");
})


grove.initGesture()
basic.forever(function () {
    if (grove.getGestureModel() == 1) {
        basic.showLeds(`
            . . # . .
            . . . # .
            # # # # #
            . . . # .
            . . # . .
            `)
    }
    if (grove.getGestureModel() == 2) {
        basic.showLeds(`
            . . # . .
            . # . . .
            # # # # #
            . # . . .
            . . # . .
            `)
    }
    if (grove.getGestureModel() == 3) {
        basic.showLeds(`
            . . # . .
            . # # # .
            # . # . #
            . . # . .
            . . # . .
            `)
    }
    if (grove.getGestureModel() == 4) {
        basic.showLeds(`
            . . # . .
            . . # . .
            # . # . #
            . # # # .
            . . # . .
            `)
    }
    basic.pause(100)
})

all the model

/**
 * 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
}

Grove - Ultrasonic Ranger

Measure distance in centimeters, specify the signal pin.

let distance = grove.measureInCentimeters(DigitalPin.P0);

Measure distance in inches, specify the signal pin.

let distance = grove.measureInInches(DigitalPin.P0);

Grove - 4 digital display

Create a 4 Digital Display driver, specify the clk and data pin, and set the brightness level, then start display value.

let display = grove.createDisplay(DigitalPin.P0, DigitalPin.P1);
display.set(7);
display.show(1234);

Use ||bit|| to display one bit number.

Use ||point|| to open or close point dispay.

Use ||clear|| to clean display.

Grove - UART WiFi V2

Connect to a WiFi and send data to ThinkSpeak or IFTTT, specify the UART tx and rx pin.

grove.setupWifi(
    SerialPin.P15,
    SerialPin.P1,
    BaudRate.BaudRate115200,
    "test-ssid",
    "test-passwd"
)

basic.forever(() => {
    if (grove.wifiOK()) {
        basic.showIcon(IconNames.Yes)
    } else {
        basic.showIcon(IconNames.No)
    }
    grove.sendToThinkSpeak("write_api_key", 1, 2, 3, 4, 5, 6, 7, 8)
    grove.sendToIFTTT("ifttt_event", "ifttt_key", "hello", 'micro', 'bit')
    basic.pause(60000)
})

Grove - LCD 16x2

Show string and number after initialize LCD.

grove.lcd_init()
grove.lcd_show_string("Hello", 0, 0)
grove.lcd_show_number(12345, 0, 1)

Grove Temperature & Humidity Sensor (DHT11)

Read the temperature and humidity from the Grove Temperature & Humidity Sensor.

serial.redirectToUSB();

let dht11 = grove.connectToDHT11(DigitalPin.P1, false);

basic.forever(function () {
    if (grove.readTemperatureHumidity(dht11)) {
        serial.writeLine("New data received:");
        serial.writeValue("humidity", grove.getHumidity(dht11));
        serial.writeValue("temperature", grove.getTemperatureCelsius(dht11));
    } else {
        serial.writeLine("Fail to read, try again later");
    }
    basic.pause(2000);
})

Grove - Color Sensor

This demo shows how to get the red color level from Grove Color Sensor and display the number on serial port and the LED matrix of Microbit.

let veml6040 = grove.connectToVEML6040(false)
basic.forever(function () {
    serial.writeString("red color level:")
    serial.writeLine("" + (grove.readColorRed(veml6040)))
    basic.showNumber(grove.readColorRed(veml6040))
    basic.pause(1000)
})

Grove - Vision AI Module V2

Connect the Grove Vision AI Module V2 through I2C and get AI inference results.

Before uploading the code, make sure you have deployed the model on the AI Module V2. Click here to deploy.

We use People Detection model and Gesture Detection model as examples.

This demo shows how to get the number of detected gesture of Rock, Paper, Scissors, and dispay the number on the LED matrix of Microbit.

let person_num = 0
serial.redirectToUSB()
grove.connectAndSetupGroveVisionAIV2(
true
)
while (!(grove.startAIInference())) {
    serial.writeLine("Fail to initialize")
    basic.pause(5000)
}
basic.forever(function () {
    if (grove.fetchAIInferenceResults()) {
        if (grove.containsObjectName(["Rock", "Paper", "Scissors"])) {
            person_num = grove.countObjectByName(["Rock", "Paper", "Scissors"])
            basic.showNumber(person_num)
            basic.pause(2000)
        } else {
            basic.showIcon(IconNames.No)
        }
    }
    basic.pause(1000)
})

This demo will teach you how to use callback functions to print the recognized information in the serial port.

grove.onReceiveDetectionResult(function (detectionResults) {
    for (let detectionResult of detectionResults) {
        serial.writeLine(detectionResult.toString())
    }
})

let persons = 0

serial.redirectToUSB()
grove.connectAndSetupGroveVisionAIV2(true)

while (!(grove.startAIInference())) {
    serial.writeLine("Failed to start inference")
    basic.pause(1000)
}

basic.forever(function () {
    if (grove.fetchAIInferenceResults()) {
        serial.writeLine("Fetch inference result success")
        if (grove.containsObjectName(["person"])) {
            persons = grove.countObjectByName(["person"])
            serial.writeString("Detected persons: ")
            serial.writeNumber(persons)
            serial.writeLine("" + ("\n"))
        }
    }
    basic.pause(100)
})

License

MIT

Supported targets

• for PXT/calliopemini

Grove=github:seeed-studio/pxt-grove#v0.7.3