mBot is the easiest educational robot for kids to learn programming, Arduino and robotics.
Photo from Andrew Fisher
- Install the USB Serial driver for your platform. It's in the
driversfolder. If you're using linux you don't need to do anything. Win and Mac you will need to. You'll also need to reboot your computer for it to take effect. - Build the bot
- Install the dependencies of:
- NodeJS - version 0.12.7
- Set up Git
- Install Arduino IDE
git clone git@github.com:Makeblock-official/mbot_nodebots.git && cd mbot_nodebots
npm install
- Install fimata. Open arduino and navigate to
firmware/src/mbotFirmata/mbotFirmata.inoand open it.
Compile and then upload to the board.
Connect with USB cable and install firmware using interchange (instruction
below assumes ./node_modules/.bin is on your path. You can also install interchange
with the npm install -g nodebots-interchange switch to install it globally.
npm install nodebots-interchange
You can install the firmware to work with either USB or Bluetooth with appropriate firmata using the firmata switch on interchange
To use USB:
interchange install git+https://github.com/Makeblock-official/mbot_nodebots -a uno --firmata=usb
To use Bluetooth:
interchange install git+https://github.com/Makeblock-official/mbot_nodebots -a uno --firmata=bluetooth
Examples are in the examples directory. You can run using node examples/file.js like
normal. Information about the examples is below
Use examples/motors.js this will drive the mbot around using the arrow keys on
your keyboard. You may need to change the details of the directions depending on
how you wired up the motors.
Use examples/piezo.js - this will make your mbot play some tunes.
Use examples/sonar.js to detect the distance to an object. You can use this to
stop your robot from running into this.
Your mbot has a little button that you can use to trigger something maybe. Use
examples/button.js to detect the button press and do something with it.
You can read the light level near the mbot - maybe you can make your mbot
run away from too much light or move towards more light? Use examples/light.js
There are 2 LEDs on the mbot which are RGB LEDs. These are connected in a strip
so you can use node-pixel to control them. An example is examples\leds.js
Under your mbot is a sensor which you can use to detect lines. Look at
examples\reflectance.js to see how to get the data. You can detect lines by
getting one of the two sensors to be bright and one to be dark so it can follow
an edge.
To use the BT module do the following modifications:
- Remove the bluetooth module from the mBot
- Install the bluetooth firmata with instruction below
interchange install git+https://github.com/Makeblock-official/mbot_nodebots -a uno --firmata=bluetooth
- Turn the mbot off, install the bluetooth module, turn the board on again.
- Pair the module (use whatever tool you need to make that work - usually BT settings in your control panel).
Test the connection by using a screen terminal such as:
screen /dev/tty.Makeblock-ELETSPP
If this connects you should see the blue LED on the BT module go solid. From there hit the reset button on the board and then you should see something like the following appear on your terminal.
��ymbotFirmata.ino��{�3��l�A�2�U�
If you don't get that, test your connection etc. If you do then proceed.
Now execute
node examples/leds.js /dev/tty.Makeblock-ELETSPP
And you should get blinking lights over BT. You can do the same thing with most of the examples though speed may be an issue in high data rate cases.
Install using:
npm install drivers/node-hid
Run example
node examples/wifi_motors.js