Coding Platform

• makecode：https://makecode.microbit.org

Add codebase

• Click on “Advanced” in the MakeCode Drawer to see more code sections.

• We need to add an extension for coding to the IOT. Click on the “Extension” at bottom of coding drawer, then Search for “IOT” and click on the IOT package to add it to your project. (As below picture)

Note：If you get a warning telling you some packages will be removed because of incompatibility issues, either follow the prompts or create a new project in the Project file menu.

How to drive the buzzer

• There is on-board buzzer on the IOT:bit as below picture. Let the buzzer be connected to the PO of the micro:bit to play music by the music of the makecode.

• When button A be pressed in the “input”, play a bit of music.

• Program link：https://makecode.microbit.org/_4j6PCeV087AW

How to use RTC

• There is on-board DS1307RTC timing on the IOT:bit as below picture. RTC timing need a CR1220 button cell for lasting power supply. We need the RTC timing keep accuracy in the event of a power outage.

• Press button A to set the time to the set time. On start with RTC function and the minutes be displayed on the 5*5 allay.
• Turn off the power after turning off the power for one minute, and the dot matrix display will show the number of minutes after another 1 minute.

• Program link：https://makecode.microbit.org/_e9d3vW96bPe2

How to use the internet function

• The most important function of IOT:bit is WIKI. The onboard ESP-12FWIFI module can connect WIFI and send information. To use port for communication with the micro:bit and the pin RX-P8，TX-P12 is special for IoT.
• Using thingspeak as cloud to coding and data uploding.thingspeak平台使用指南

• On start, initialize ESP8266 to default connection with P8 & P12.
• Connect your own WiFi, input the key and the password.
• Under foever loop, connect the thinkspeak and set date to send, then pause.

• Program link：https://makecode.microbit.org/_JAXAmmHq4FhW