Doodle Bot is a very simple beginners robot that can write messages using white board markers, jumbo chalk or crayons. The kit comes with all parts including an Arduino compatible controller and a screwdriver. The DoodleBot is a very simple robotic platform for beginners, students and hobbyist.
The Chassis is a simple laser cut panel with two ball raced geared motors and a servo for raising and lowering a white board marker, jumbo chalk or crayon. Each wheel is fitted with an 8-pole magnet that is monitored by hall effect sensors to form two simple wheel encoders. The kit includes an Arduino compatible controller with an ATmega8A processor, USB interface (CP2102) and FET, dual "H" bridge. Sample code allows the user to write simple alpha-numeric text messages.
Resources and Documentation:
- Arduino compatible robot controller (ATMEGA8A) with USB interface.
- Laser cut, transparent Acrylic base plate.
- 2x LBD geared motors with ball bearing.
- 2x Wheel Encoders for precise movement and drawing
- 1x Miniature servo with ball bearing.
- Rubber tires and pen gripper.
Pen not included; any large pen, crayon or chalk stick can be used to draw.
Want to do more?
The Mini Driver PCB has a socket for a Bluetooth or Xbee wireless transceiver module. Connect it to your phone or PC and control the robot remotely.
Do more than draw!
If you need more memory or functionality then you can replace the Mini Driver with a Micro Magician. The controllers are the same size but the Micro Magician offers more memory, a 3-axis accelerometer and an IR receiver built in. The IR receiver will allow the robot to be controlled with a universal TV remote or any IR remote using SIRC (SONY IRCode).
I have currently fitted the Doodle Bot with a RTC (Real Time Clock) and an SD card reader for some A.I. (Artificial Inteligence) experiments. You can follow it's progress here: http://letsmakerobots.com/node/34226