Internet of Things (KOI v1.9.5)
The Wifi capabilities of KOI allows it to access IoT platforms.
Connecting to IoT Platforms
Load KOI Extension: https://github.com/KittenBot/pxt-koi
Blocks for IoT:
This tutorial just serves as a general example for communicating with MQTT servers, different MQTT servers may require different credentials.
Refer to this page for ThingSpeak tutorials: ThingSpeak Tutorial
For MakerCloud Users, please refer to: MakerCloud Tutorial
1: Download the program to the Micro:bit.
2: Press A and B at the same time and wait for KOI to connect to the Wifi network.
KOI can store the Wifi and MQTT credentials, there is no need to run these blocks everytime we use these functions.
3: Press A to upload a random number to the MQTT.
4: Press B to read the data from the MQTT.
5: KOI will display the number on its screen.
Extension Version and Updates
There may be updates to extensions periodically, please refer to the following link to update/downgrade your extension.
2: Does KOI work with 3V input?
· A: No, KOI only works with 5V.