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pxt-DFRobot_Environment_Science

MBT0034 Environment Science Expansion Board V2.0 for micro:bit

This micro:bit-based expansion board, specially designed for STEAM education, allows students to measure environmental conditions for scientific experiments by using rich on-board sensors that cover all basic aspects of nature and science in daily life, which helps them explore the related science knowledge and understand nature phenomenon. It aims to provide a platform for students to learn science theory with practices and bring science education closer to daily life!

Integrated sensors include UV sensor, temperature sensor, humidity sensor, air pressure sensor, sound sensor, light sensor, water temperature sensor, and a TDS (Total Dissolved Solids) water quality sensor, soil moisture sensor, TVOC, CO2 sensor, etc.

Basic usage

Request sensor data


    basic.forever(function () {
        naturalScience.requstdata()
    })

Control the speed and direction of motor, or stop the motor


    basic.forever(function () {
        naturalScience.mototRun(DIR.CW, 100)
        basic.pause(1000)
        naturalScience.mototStop()
        basic.pause(1000)
    })

Control RGB LEDs to display various colors


    naturalScience.microIoT_setBrightness(100)
    basic.forever(function () {
        naturalScience.microIoT_setIndexColor(naturalScience.microIoT_ledRange(0, 3), 0xffff00)
        basic.pause(1000)
        naturalScience.ledRainbow(1, 360)
        basic.pause(1000)
        naturalScience.microIoT_ledBlank()
        basic.pause(1000)
    })

OLED Screen module can be used to display sensor data, number, and string.


    basic.forever(function () {
        naturalScience.setOLEDShowString(1, 16, 1, "Hi DFRobot")
        naturalScience.setOLEDShowNumber(1, 16, 1, 2020)
    })

Clear number or string on the OLED sreen, clear specific number/string or clear entire row.


    basic.forever(function () {
        naturalScience.clearOLED(1, 16, 1)
        naturalScience.clearOLEDRow(1)
    })

Display sensor data on the OLED sreen


    basic.forever(function () {
        naturalScience.requstdata()
        naturalScience.setOLEDShowString(1, 7, 1, "UV:" + naturalScience.getUltraviolet())
        naturalScience.setOLEDShowString(8, 16, 1, "-SOD:" + naturalScience.getSound())
        naturalScience.setOLEDShowString(1, 7, 2, "TC:" + convertToText(naturalScience.getTVOC(CT.TVOC)))
        naturalScience.setOLEDShowString(8, 16, 2, "-CO2:" + convertToText(naturalScience.getTVOC(CT.CO2)))
        naturalScience.setOLEDShowString(1, 7, 3, "TE:" + naturalScience.getBME(BME.TEMP))
        naturalScience.setOLEDShowString(8, 16, 3, "-WTE:" + naturalScience.getWatertemp())
        naturalScience.setOLEDShowString(1, 7, 4, "LI:" + convertToText(naturalScience.getLight()))
        naturalScience.setOLEDShowString(8, 16, 4, "-TDS:" + convertToText(naturalScience.getTDS()))
        naturalScience.setOLEDShowString(1, 16, 5, "HU:" + naturalScience.getBME(BME.HUM))
        naturalScience.setOLEDShowString(1, 16, 6, "PE:" + naturalScience.getBME(BME.PRESSURE))
    })

IOT control module, access to IoT platforms like IFTTT, Thingspeak, SIOT, EasyIOT via configuration


    input.onButtonPressed(Button.A, function () {
        naturalScience.microIoT_SendMessage("78", naturalScience.TOPIC.topic_0)
    })
    input.onButtonPressed(Button.AB, function () {
        naturalScience.microIoT_http_post("12", "344", "44", 10000)
    })
    input.onButtonPressed(Button.B, function () {
        naturalScience.microIoT_http_TK_GET(
        "GX8STNEAUFMWNBDG",
        "95",
        "12",
        "8",
        "",
        "",
        "",
        "",
        10000
        )
    })
    naturalScience.microIoT_WIFI("hitest", "12345678")
    naturalScience.microIoT_http_IFTTT("BBB", "dtpfTlU3Wqa8y0HRh77xXE")
    naturalScience.microIoT_MQTT(
    "rHpr0RcWR",
    "9NtrAg5ZRz",
    "DN5FYlDZR",
    "192.168.",
    naturalScience.SERVERS.China
    )

License

MIT

Supported targets

for PXT/microbit