micro:IoT-micro:bit IoT Expansion Board

This micro:bit-based IoT expansion board is pretty cute and delicate, on which we integrated Wi-Fi, OLED, 2-way motor drive, 6-way IO port, 2-way IIC, 1-way serial port, 1-way buzzer, 3-way RGB, 2-way servo, Li-ion battery holder, charging circuit, emergency power interface, etc.

So many resources for you to programme! Even without much background knowledge, you can build your IoT applications in few steps!

Basic Usage

• Display parameters on OLED

microIoT.microIoT_initDisplay()
basic.forever(function () {
    microIoT.microIoT_showUserText(0, "DFRobot")
    microIoT.microIoT_showUserNumber(1, 2019)
    basic.pause(1000)
    microIoT.microIoT_clear()
    basic.pause(1000)
})

• Press button A to send data to IoT

input.onButtonPressed(Button.A, function () {
    microIoT.microIoT_SendMessage("mess", microIoT.TOPIC.topic_0)
})
microIoT.microIoT_WIFI("yourSSID", "yourPASSWORD")
microIoT.microIoT_MQTT(
"yourIotId",
"yourIotPwd",
"yourIotTopic",
microIoT.SERVERS.China
)
basic.forever(function () {
	
})

• Press button A to send data to ThingSpeak

input.onButtonPressed(Button.A, function () {
    microIoT.microIoT_http_TK_GET(
    "your write api key",
    "DFRobot",
    "2020",
    "",
    "",
    "",
    "",
    "",
    0
    )
})
microIoT.microIoT_WIFI("yourSSID", "yourPASSWORD")
basic.forever(function () {
	
})

• Press A to send data to IFTTT

input.onButtonPressed(Button.A, function () {
    microIoT.microIoT_http_post(
    "",
    "",
    "",
    10000
    )
})
microIoT.microIoT_WIFI("yourSSID", "yourPASSWORD")
microIoT.microIoT_http_IFTTT("yourEvent", "yourKey")
basic.forever(function () {
	
})

• Press button A to light up RGB LEDs 0 to 3 in yellow

input.onButtonPressed(Button.A, function () {
    microIoT.microIoT_setIndexColor(microIoT.microIoT_ledRange(0, 3), 0xffff00)
})
basic.forever(function () {
	
})

• Control servo and motor

microIoT.microIoT_ServoRun(microIoT.aServos.S1, 90)
microIoT.microIoT_MotorRun(microIoT.aMotors.M1, microIoT.Dir.CW, 0)
basic.forever(function () {
	
})

License

MIT

Copyright (c) 2020, microbit/micropython Chinese community

Supported targets

• for PXT/microbit (The metadata above is needed for package search.)