When an object is detected, the robot backs away from the object and turns to avoid running into it again, then starts off forward again. Minibot ships with a very simple example program - it calibrates the light sensors to ambient, then drives the robot forward until it detects an object. These pads are perfect for attaching headers to provide tie points for external sensors, stepper motors, or other circuits you may want to add to the robot. The battery cradle mounts to the pads provided here, as does the motor, and the row of pads closest to the battery along either side is tied to a single bus. The last and largest section is the power supply and prototyping area. 156" spaced holes for screw terminals (not included) for the motor outputs and power supply connections.
1" spaced headers for all of the relevant power and control signals, as well as. The motor drive voltage is preset to 4.5V there is a spot for a through-hole resistor on the board which allows the user to adjust that voltage up or down for future applications.
#Xteam minibot reset driver
The connections to the motor controller, infrared LEDs and infrared sensors are pre-routed, so you don't have to make any of those connections on your own.īehind that section is a motor driver based on the TB6612FNG chip.
The chip is running at 5V with a 16MHz oscillator, and all of the standard pins you'd expect from a full-size Arduino board are pulled out, albeit in a smaller footprint.
#Xteam minibot reset pro
The next two sections are an Arduino Uno-compatible 5V Pro Mini and an FTDI Basic, which allow you to upload your code to the onboard Atmega328P at the higher speeds supported by the Optiboot bootloader. They can also be used with additional standoffs to mount downward-looking infrared sensors for line-following applications. Normally, the center hole is used for the standoff/screw combination which supports the front end however the two holes to either side of that one are positioned to accept the Tamiya ball caster, which we sell. When assembled, the emitter sits flush with the board surface, while the receiver sits above and behind the emitter to avoid crosstalk between the two, which could affect results.īetween the two object detection sensors you'll find an additional prototyping area. The code loaded on the board is set to calibrate out ambient light, then look for objects too close to the front of the robot and attempt to avoid them by backing away and turning in the opposite direction. The object detection sensors are placed at a 45° angle to the direction of travel to provide directional object detection. We'll start at the front of the board and work our way back. The Minibot board is broken into seven sections: a power/prototyping area, a motor driver, an Arduino Uno-compatible Pro Mini, an FTDI basic, two infrared reflective object detection sensor areas and another small prototyping area. You'll also need a few tools to finish the assembly:Ī diagonal cutter or hobby knife for cutting apart the bits in the Tamiya kitĪ SparkFun screwdriver for assembling the Tamiya kit 2 sets of infrared transmitter/receiver sensor pairsĪ standoff to keep the front edge from draggingįour wires for connecting the motors to the boardĪn assembly guide with step-by-step instructions.The Minibot kit comes with all the parts you need to build the robot:Ī 9V battery holder (battery not included) By adding some extra parts, you can make it a line follower, add remote control, or do just about anything else you can imagine!
Once you've assembled it (using the included direction booklet), you can program it to navigate mazes, avoid objects, or map a room. You'll need some basic soldering skills to assemble the kit, and basic Arduino programming skills to use it. It is Arduino-compatible and the ProtoSnap architecture means that when you've exhausted the potential of the kit as-is, you can break it apart and use the components to make other robots.įirst off, a warning to those who may not be familiar with the ProtoSnap line - don't break the board apart yet! The Minibot is designed to use the PCB as a structural element of the design and if you break it apart, well, that's not very structural, is it? The ProtoSnap Minibot is designed to be a low-cost introduction to robotics for hobbyists, students and educators.
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