Upload Mode Broadcast
With the Upload Mode Broadcast extension, you can enable a sprite to interact with a device in the Upload mode.
In the default settings, you can enable a sprite to interact with a device only in the Live mode after connecting the device to your computer through a serial port.
Let's use mBot to perform the Upload Mode Broadcast function.
Connect mBot
Use a USB data cable to connect mBot to your computer. Click the Devices tab and click + to add mBot from Device Library.
Set the mode to Upload.
Click Connect. In the dialog box that appears, choose USB and click Connect.
Use "Upload Mode Broadcast" Blocks
Let's create a new project to light up the LED indicators of mBot through Panda.
Program Panda
(1) Click the Sprites tab and click + extension at the bottom of the Blocks area. In the Extension center dialog box that appears, click + Add at the bottom of Upload Mode Broadcast.
(2) Select Panda. Drag the Events block when green flag clicked and Upload Mode Broadcast block send upload mode message ( ) to the Scripts area, and name the message light.
Program mBot
(3) Select mBot on the Devices tab and click + extension at the bottom of the Blocks area. In the Extension center dialog box that appears, click + Add at the bottom of Upload Mode Broadcast.
(4) Drag the Upload Mode Broadcast block when receiving upload mode message ( ) to the Scripts area and enter the message name light. Drag the Show block LED (all) shows ( ) to the Scripts area, and keep the default red color.
(5) Click Upload to upload the program to mBot.
(6) Click the green flag under the stage and see what happens.
