Difference between revisions of "Itty Bitty Buggy: Getting Started (mDesigner)"

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Revision as of 20:49, 25 October 2018

mDesigner software installation must be completed before proceeding to this guide.

The mDesigner software installation guide can be found here for Windows / for Mac

This tutorial will get you getting started with programming Itty Bitty Buggy with mDesigner.

The following topics will be covered:

  • Hardware preparation
  • Overview of mDesigner's user interface.
  • Configuring mDesigner for use with Itty Bitty Buggy.
  • Assembling code blocks (creating a program)
  • Online vs. Offline Mode

Hardware Preparation

Assemble Itty Bitty Buggy into it's default Buggy mode with mCenter+ on top of Buggy Base. Ensure the cable is connected to pin D2/D3 on mCenter+ and the other end connected to to Buggy Base. Attached the wheels onto Buggy Base. This hardware configuration will be used in the remaining tutorials.

image.png

Connect the USB cable to Buggy and the other end to your computer's USB port. Switch on Buggy with the power switch.

image.png

mDesigner's User Interface

Here is a quick overview of mDesigner's User Interface. A more in-depth description can be found here.

File:Overview of mDesigner Interface.png

Configuring mDesigner for Itty Bitty Buggy

Under the kit selection, select Buggy.

IBB mDesigner Configuration Setup.png

This allows access to the Buggy control blocks.

IBB mDesigner Configuration Blocks.png

Connecting to Itty Bitty Buggy to mDesigner (Online mode)

Ensure Itty Bitty Buggy is connected to your computer with the USB cable and powered on.

Ensure mDesigner is in Online mode. (If mDesigner is in Offline mode, click on the slider to switch it to Online mode.)
Note: The difference between Online and Offline modes will be covered later.

IBB mDesigner Configuration Online Mode.png

Click on the Port Selector. This will list serial devices connected to your computer.

Windows Mac OS
Port will be listed as COM__ (w/ a number). Port will be listed as /dev/tty.SLAB_USBtoUART

IBB mDesigner Configuration Port Selection.png


Click to select the port. The text box will now change from disconnected to connected (or ready).

Note: If you do not see any ports or similar ports, please check if Itty Bitty Buggy is connected to your computer and turned on.

IBB mDesigner Configuration Connected.png

A special program needs to be uploaded onto Itty Bitty Buggy in order to use it with mDesigner in Online mode.
To upload the special program, use your mouse to hover on the Connected text. This will bring up an option to Flash firmware. Click to upload the special program.

IBB mDesigner Configuration Flash Firmware.png

An upload dialog will appear and Upload Completed will appear when done. Click OK to close the dialog.

IBB mDesigner Configuration Flash Firmware Progress.png
IBB mDesigner Configuration Flash Firmware Completed.png

The Connected text will now change to Ready.

IBB mDesigner Configuration Online Mode Ready.png

Note: The text on the port selector determines the current status of Buggy's connectivity to your computer.

  • Disconnected: Port has not been selected.
  • Connected: Port has been selected. Not Online mode ready. Flash firmware if you wish to use Online mode.
  • Ready: Port has been selected and Online mode is ready to be used.

Itty Bitty Buggy is now connected and ready to be programmed in mDesigner!

Assembling A Program

To create a program in mDesigner. Simply drag blocks from the Blocks section into the Script section.

First Example

Clicking on a Block Category such as Events or Buggy will bring up the Blocks in that category. This allows you to quickly find the Blocks you need.

For this example, first click on Events under the Block Categories section. Then drag the MDesigner When Click Green Flag block new.png (When Green Flag clicked) block into the Scripts section.

image.png

Next, click on the Buggy category.

image.png

Then drag the IBB mDesigner ColorLED Set Color NoLabels.png (ColorLED - Set Color) block into the Scripts section and snap it under the MDesigner When Click Green Flag block new.png (When Green Flag clicked) block as shown.

image.png

Now, change the color on the IBB mDesigner ColorLED Set Color NoLabels.png (ColorLED - Set Color) block by clicking on the color. Set it to red or to a color of your liking.

image.png

Click anywhere on the assembled code Blocks to run it.

image.png

After activating the code Blocks, ColorLED "A" on Itty Bitty Buggy will turn on!

image.png

Select a different color, and activate the code Blocks again. What happens?

image.png

"Online" vs. "Offline" modes

mDesigner can operate in two different modes: "Online" and "Offline" modes.

In the example above, "Online" mode was demonstrated.

mDesigner can interact with Itty Bitty Buggy in two different modes. Each mode has its own pros and cons. It is recommended to use Online mode initially before exploring Offline mode.

Online mode is Scratch, but with added blocks which are designed to interact with Itty Bitty Buggy and Microduino modules. This means the user has access to the stage and actor blocks. Projects (hardware, such as Itty Bitty Buggy) need to be connected to the computer running mDesigner. mDesigner communicates with the project (hardware), namely the Core+ module (embedded inside mCenter+), in "real time" over the USB connection by sending commands for the Core+ module to perform. This means that "Online" mode requires a constant connection with the computer running mDesigner.

Offline mode acts as a "visual" drag and drop coding editor. The script (code) is converted to "Arduino" (text code) code and then compile and uploaded to the attached the Core+ module (embedded inside mCenter+). This means that code can run even when detached from the computer. The stage and actor are disabled in this mode since the code runs independent of mDesigner.

Capability Online Mode Offline Mode
Drag & Drop programming Yes Yes
Supports Microduino modules Yes Yes
Stage and actor enabled Yes No
Real time code testing Yes No
Code compiled and uploaded No Yes
Can run WITHOUT being connect to computer No Yes
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