After 10 million sold to user profiles ranging from the curious to the inventor, the turned out to be an important platform for the development of home robotics projects. Although the Arduino is more ideal for this type of use, free and easy nature to use, develop and hack the Raspberry Pi just giving computers such space also among robots, as the example of the Arduino, the card is cheap and It can work together with a rich set of peripherals and compatible sensors.
Raspberry Pi is a specific type of computer, with simple, compact and inexpensive hardware, designed especially for software development projects. Currently, there are four computer models: Raspberry Pi Raspberry Pi 2, Raspberry Pi Raspberry Pi Zero and 3. In Brazil, you can find Pi 3, latest and strongest version settings, for prices starting from R $ 230 .
This design shows a robot with ultrasonic sensor capable of detecting obstacles to avoid them. The term “ultrasonic sensor” can scare, but in fact it is a HC-SR04, Raspberry-compatible sensor widely used by the community of inventors and which in Brazil is easy to find at prices below R $ 15. The problem, in fact, it is to make the sensor work, communicate with Raspberry and ensure that the Raspberry understand information about obstacles in time to correct the direction of the robot.
As we mentioned, RobotPiv 1.0 is a recurring example of a type of robot built with very Raspberry simply because it is relatively easy to assemble and ideal for beginners in electronics, development and.The project RobotPiv 1.0, in particular, is released in open source for those who want to copy and make your.
The coolest part of this project is the use of a Raspberry Pi 2 in a completely open-source construction: ie, you can download the project files to print the pieces of the robot in a 3D printer.
Associated with a Kinect, Pi Tank can be controlled by mobile and enables developers to create applications for it: with creativity, you can write a software that gives more autonomous the robot behavior.
This initiative is very cool because, in a way, is more accessible than the previous example. While Pi Tank need a 3D printer for the manufacturing of some components, Brick-pi proposal is the use of the LEGO building for furniture and structures of the robot parts. To create a robot with Lego, the applicant needs a variety of Technic kind of game to assemble pieces, a Raspberry Pi and an accessory board that connects to Raspberry and is responsible for distributing electrical signals by Lego components used in the project .
CamJam Edukit 3
The CamJam is a kit sold for those who are interested in getting in robotics: it comes with a card to drive an electric motor, wheels, two motors (one for each wheel), a stabilizer, ultrasonic sensor, sensor to identify lines, plus jumpers, resistors and other electronic components less voted.
What do you do with all this? The idea is to build a robot with the Raspberry Pi to center, powered by batteries. With a little curiosity, the user can configure the use of ultrasonic sensor for the robot to detect and avoid, obstacles in your way. The line sensor can be used for the machine to recognize lines on the floor and follow. A CamJam Edukit 3 can be found for $ 30 (US $ 97) in specialized sites.
Using the Raspberry Pi Zero, the cheapest version and compact computer, you can create an R2-D2 controlled by remote control. The project requires only a toy in the shape of the Star Wars character (which means it can be adapted to more or less anything that fits one Raspberry Pi Zero and it’s not too heavy).