> For the complete documentation index, see [llms.txt](https://learn.pakronics.com.au/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.pakronics.com.au/halocode-1/user-cloud-message.md).

# User Cloud Message

User Cloud Message syncs your data across devices with your mBlock 5 account. As long as your HaloCode is connected to the internet, you can program it remotely.

**Sign UP / Sign In to mBlock 5**

Click the sign in/sign up icon at the tool bar, and then follow the instructions to finish signing up or signing in.

![](/files/-Lpg3yZKJRjRst-KFFAF)

**Toggle on Upload mode**

Click to toggle on Upload mode.

![](/files/-Lpg3yZLK6IXQU4Ir0tm)

**Use Stage Button to Control HaloCode Remotely**

We will create a new project combined with Scratch Stage Programming. Use the button on stage to control HaloCode remotely.

**Add User Cloud Message Blocks**

Under "Sprites", click "+" in the Blocks area. The Extension Center page will pop up. Click "Add" to add User Cloud Message blocks.

![](/files/-Lpg3yZMVWwslvzL4-Ar)

**Step One: Program Stage Button**

1\. Under "Sprites", click "×" to delete "Panda" (the default sprite).

![](/files/-Lpg3yZNrUYI0voN66_6)

2\. Click "+" to add a new sprite. From the pop-up Sprite Library page, search and choose "Empty Button1". Click "OK".

![](/files/-Lpg3yZOjQhpqcVAI6MG)

3\. Choose "Empty Button1", and drag an Events block when this sprite clicked to the Scripts area.

![](/files/-Lpg3yZP4VpZhL6ma_cA)

4\. Add a User Cloud Message block send user cloud message () and name the message "light\_on".

![](/files/-Lpg3yZQinxOM0W-IZTG)

5\. Let's add some special effects to the button. Add a Motion block change y by () and set the value to "-2". Add a Looks block set color effect to () and set the value to "-10".

![](/files/-Lpg3yZRHT017K6GzSaK)

6\. Add a Control block wait () seconds and input "0.2". Drag another Motion block change y by () and set the value to "-2". Then add another Looks block set color effect to ().

![](/files/-Lpg3yZS3n3cYXc2FlNS)

**Step Two: Program HaloCode**

**Connect to the Internet**

1\. Under "Devices", make sure "HaloCode" is selected. Drag an Events block when HaloCode starts up to the Scripts area. Add a Wi-Fi block connect to Wi-Fi () password (). Input Wi-Fi SSID (Wi-Fi name) and password.

![](/files/-Lpg3yZTJSKCWNol7AK3)

2\. To ensure Wi-Fi is successfully connected, we need to add a Control block wait () and a Wi-Fi block Wi-Fi is connected?. We want to know when Wi-Fi is connected, so let's add a Lighting block all LEDs light up () to make the LED ring lights up green.

![](/files/-Lpg3yZUcZs3lBy_6sr8)

**Cloud Message Script**

When HaloCode receives the user cloud message "light\_on", we want the LED ring to light up red and then go off.

1\. Drag a Wi-Fi block when receiving user cloud message () and input "light\_on". Add a Lighting block all LEDs light up () and set the color to red.

![](/files/-Lpg3yZVC47uIkII1aUl)

3\. Add a Control block wait () seconds and a Lighting block light off all LEDs.

![](/files/-Lpg3yZWve7gAtPEmy9s)

4\. Click "Upload" to upload the program to HaloCode.

![](/files/-Lpg3yZXHChuq9CmfzGO)

5\. Try clicking "Empty Button1" on the stage!

As long as HaloCode is connected to the internet, you can sign in to mBlock 5 in another computer and open the same project to control HaloCode remotely.