> For the complete documentation index, see [llms.txt](https://sharinghub-eng.kittenbot.hk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sharinghub-eng.kittenbot.hk/wifibrick_iot/makecode/objectblocks.md).

# Makecode Coding and ObjectBlocks

### Foreword

The following tutorial is for WifiBrick and Robotbit, for KOI users, some programs may need adjustments to work on KOI.

### 1: Setting Up ObjectBlocks

Create an account on ObjectBlocks.

[ObjectBlocks](https://www.objectblocks.cc/)

Log in and create a new project.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object1.png)

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object2.png)

Select Channels from the menu.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object3.png)

Add a new channel.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object4.png)

Specify the type to be either text or numeric.

Remember to choose YES for the webhook option.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object5.png)

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object6.png)

The webhook option contains credentials for accessing your channel, please keep confidential.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object7.png)

Publishing and subscribing to the channels requires credentials.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object8.png)

In order to visualize the data on ObjectBlocks, we need to create a dashboard. Add a new dashboard via the menu.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object9.png)

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object10.png)

Add a tool.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object11.png)

Many kinds of representations are available, for this tutorial, text will be used.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object12.png)

Select the channel we’ve just created.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object13.png)

### 2. MakeCode Coding

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/mcbanner.png)

#### Import WifiBrick Extension

Search for Kittenbot and import KittenWifi.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object14.png)

```
For KOI user, import KOI.
```

#### 1: Connecting to ObjectBlocks platform.

Fill in the authentication credentials for ObjectBlocks.

MQTT Host: hub2.objectblocks.cc Node: Does not matter Username: Your username(Host) Password: Your password(Pass)

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object15.png)

#### 2: Publishing to ObjectBlocks

Copy and paste your ObjectBlocks topic into the publishing block.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object16.png)

#### 3: Subscribing to ObjectBlocks

Copy and paste your ObjectBlocks topic into the subscribing block.

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object19.png)

#### 4. Final Program

Press A to publish a random number to ObjectBlocks, the number is shown on the Dashboard as well as the Micro:bit.

![.](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object21.png)

#### Sample Program

![](https://kittenbothk-eng.readthedocs.io/en/latest/_images/object20.png)

[Sample Program](https://makecode.microbit.org/_3Picjj2KRChw)

### Extension Version and Updates

There may be updates to extensions periodically, please refer to the following link to update/downgrade your extension.

[Makecode Extension Update](https://kittenbothk-eng.readthedocs.io/en/latest/Makecode/makecode_extensionUpdate.html)


---

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