Questions tagged [raspberry-pi]

The Raspberry Pi is a credit-card sized general purpose computer. Questions about Raspberry Pi but not related to robotics are off-topic, but may be asked on Raspberry Pi Stack Exchange.

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196 views

Kinect V2 (Arm/Hand Reading) to G-Code

I am very new to this space and would greatly appreciate some clear guidance. I have a Raspberry Pi 3, Arduino Mega 2560+Shield, and Kinect v2 + PC USB cable adapter. I am currently building the ...
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1answer
108 views

How's robot vacuum cleaner back to charger when battery is low? [closed]

What's technology robot vacuum cleaner used to locate it's charger when battery is low ?
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1answer
440 views

Build a drone with a raspberry pi 2 as receiver for the CC3D-LibrePilot

I tried to get the yaw, roll, pitch and throttel integers from the pi to the CC3D with python and c++ as PWM signal over the GPIOs but the output didn't seem to be right or it was delayed. Could ...
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1answer
32 views

Raspberry PI with HKpilot32

I would like to connect my RP3 to the HKpilot. While most connections are pretty straightforward, I would like to know how ca I power the PI: It is stated in the above link that "The RPi can be ...
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2answers
294 views

How can I stream Kinect V2 tracking data from PC to Raspberry Pi 3 through WiFi?

I'm currently working with Kinect v2. I can do all sort of stuff on PC with it. What I want to do next is, to get the data I want on PC and control the Raspberry Pi with that data (for example, I will ...
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2answers
935 views

Nuc, custom pc or raspberry pi?

For our Minor “Robotics and Vision” we need to use ROS to create a system that can navigate to and from a coffee machine. The available hardware consists of a robotic platform from "Dr Robot", and a ...
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1answer
203 views

Daisy chaining resistors for an LED circuit

Please note: although this question involves a Raspberry Pi (hereafter RPi), it is really a pure robotics question at heart! I am trying to connect my RPi 1 Model A to a breadboard with a single, ...
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1answer
267 views

Any open source simulation software which is able to simulate robots and their movements?

I am searching for an open source simulation software which is able to simulate robots and their movements in a factory. I would like to send control signals and receive sensor data back. This ...
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1answer
180 views

Calculating the resistor for a buzzer

Please note: Although this question tangentially involves a Raspberry Pi, this is really more just a pure robotics question at heart. I'm trying to connect my Raspberry Pi 1 Model A to this buzzer. I'...
2
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1answer
111 views

Raspberry Pi and Buzzers: Simple solution [duplicate]

I have a Raspberry Pi 1 Model A and am interested in attaching a buzzer to its GPIO pins so that the software (running on the pi) can turn the buzzer on/off by sending signals to the GPIO pins. I'm ...
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2answers
270 views

Fire Fighting robot searching for fire in arena algorithm

i am working on a firefighting robot and i am struggling to find a way to search all rooms in an arena like this i thought of using the Wall follower rule but it will miss a room , if i am ...
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2answers
97 views

Are robot's codes usually compiled or interpreted?

I would bet that usually these are compiled for better performance, and of lawful reasons (make it harder for any user to save code without decompiling), though I'm not sure. In any case, I believe ...
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2answers
907 views

ROS + SLAM + kinect. which platform to use?

I am doing a project where I've robot which will be using kinect + ROS for Simultaneous Localization and Mapping. Which board should I use? I've heard that Raspberry pi , beaglebone are not sufficient....
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0answers
186 views

How to make ROS enabled Quadrotor with raspberry pi? [closed]

I am working on a project "ROS enabled Quadcopter", and am using hector_quadrotor package. But I am facing problems in Flight controller. My world and quadcopter is running in gazebo but I don't ...
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1answer
6k views

Quadcopter controlled by Raspberry Pi

I have: Raspberry Pi 3. Pi camera. CC3D flight controller. I have already developed a Python script that decides whether the quadcopter dron has to turn left/right, move straight on or to stop. Is ...
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1answer
564 views

Programming Roomba other than Create 2 using RaspberryPi [duplicate]

Do other Roombas have an Open Interface like the Create2? Can I send commands to my 780 like the Create 2? I am trying to control my Roomba 780 I made a 8pin FDTI connector to USB and my roomba beep ...
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2answers
324 views

Localization within a map with gyro, accelerometer and magnetometer

My goal is to locate precision within a known map. If the size of the map is known, a rectangle 4 x 3 m, and I know the initial position and orientation of the robot, after a certain period of time ...
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0answers
61 views

Stepper Motor For “Cable Car” System

I am a programmer with a lot of experience in IoT but somewhat new to actuators and robotics. I would like to create a "Cable Car" which consists of two stepper motors and a pulley. The motors would ...
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0answers
436 views

Obstacle avoiding by Pi camera [closed]

I designed a mobile robot with my colleagues for our graduation project, the purpose of it is to detect mines (metals) in a specific area We are programming the robot using Python on Raspberry Pi 3 ...
3
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1answer
80 views

iRobot Create 2 -language set error type 2

I have an iRobot Create 2 and I am connected to it with the 7-pin connector to a desktop machine via USB. Serial communication is working fine under that configuration. I can tell it to restart with ...
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1answer
3k views

Hector SLAM in ROS with RPLidar

Trying to set up Hector SLAM with the RPLidar A2. I downloaded both rplidar_ros-master and hector_slam-catkin; extracted them ...
4
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2answers
815 views

How can i connect two adafruit 16-channel 12-bit PWM/Servo Driver I2C interface (pac9685) to Raspberry or Arduino

I need to control 24 servos but I do not know how to do with I2C. I saw some componentes that do it with USB, but I need to do it with I2c. I am working in a robot with 8 legs and 3 degree of freedom ...
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1answer
184 views

How to pick up a card from a pile

I don't know if this is a purely "robot" question or a more DIY/hackish one, but let's give it a try. I currently have a set of cards that I want to sort based on several criteria. My setup includes: ...
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1answer
126 views

Recreating Roomba behavior in a spherical robot

Disclaimer: I am a beginner, both to this forum and to robotics. I work in IT, and the guys in my department have decided we would like to build a robot for the office, as a sort of hobby/team-...
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1answer
290 views

Compact 4 Node Raspberry Pi 3 Cluster for Robots?

Can a Compact 4 Node Raspberry Pi 3 Cluster be enough powerful to elaborate videostreaming input data in real time for a drone? Thank you for any answer
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1answer
802 views

How to check lane departure in OpenCV?

I'm using OpenCV 3 in Python 2.7 on a Raspberry Pi 3. My project's aim is to build an autonomous lane departing robot that can detect the two lanes on its sides and continuously correct itself to ...
5
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1answer
296 views

Why to combine a Raspberry Pi (or similar board computer) and an Arduino for controlling motors?

I am planning to build a omnidirectional holonomic robot, and checking what I should use for the hardware, I saw many people using a Raspberry to compute most stuff, which in turn calls an Arduino to ...
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2answers
477 views

How to measure pull force on a (kite) rope?

I'm building a kite flying robot, in which I've already got some sensors built in. I now also want to measure the pulling force on the rope which is attached to the kite. So I thought of attaching a ...
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1answer
199 views

How to mock a device during development?

I am coding a little robot controlled by a raspberry pi zero. Disclaimer: This is a more general development question, and only indirectly related to raspberry pi. Background: I don't want to test ...
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1answer
97 views

1 motor and 180 degree servo or just 2 motors?

I am planning to use this motor: http://www.adrirobot.it/robot_kit/feetech_FT-DC-002/TGP01D-A130_TT-Motor.pdf Model: TGP01DA130 12215-48. But I have some questions: How much a robot will be slower if ...
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4answers
97 views

Reliability of Raspberry Pi in Wild Life Guardian Drone project

I'm new here, my name is Mark, I'm 24 years old and I'm a Linux lover, by 2020 I intend to build up a wildlife guardian drone based on the Raspberry pi which will be connected to the internet but that ...
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2answers
641 views

Line follower for coloured lines

I am building a line-following robot with a Raspberry Pi Zero, using the explorer PHat. The robot is supposed to follow black, red, green and blue lines and react to the colour, so it should drive ...
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2answers
300 views

Should I use an arduino to control my balancing robot's motors?

I'm building a 2-wheel balancing robot from old parts. DC motors from an old printer, wheels from a BBQ, bodywork from an old optical drive etc. The brain of the robot is a Raspberry Pi 3. I'm using ...
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3answers
1k views

Do I need the 5V to 3.3V level shifter?

I would like to follow the instructions here, to allow myself to control the Create2 with a Raspberry Pi 3. However, this source, says that I need a level shifter to protect my Pi's circuitry from ...
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0answers
305 views

Irobot Create 2 drawing power from Pi [closed]

I am controlling an IRobot Create 2 with a raspberry pi, which I am powering with one of these: https://www.adafruit.com/product/1566 (I know, I know, I should have just gotten power from the ...
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2answers
666 views

Need a pushing mechanism

I'm new to robotics (and maybe it's not even robotics), and want to build a "pushing mechanism" to automatically push a "pop up stick" up from my kitchen bench (see product here: http://www.evoline.no/...
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3answers
1k views

Power solution for Raspberry Pi robot

I am building a Pi car with 4 gear motors (190-250mAh each max). Now I want to use my 10000mAh USB power bank to power up raspberry pi along with the 4 gear motors. I can power up the raspberry pi ...
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2answers
662 views

What is the difference between ROSberry Pi builds?

I went to go install ROS for my Rassberry Pi and found that there are 5 different variants. What is the difference between them and where can I go to learn about these differences for future updates? ...
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1answer
456 views

Need help regarding odometry using Encoder motor and raspberry pi

I am doing project on odometry using raspberry pi. I know that encoder motor will tell me how much distance my robot has covered, but I have no idea ho to implement completely. I just need guideline ...
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1answer
95 views

Find object using only distance

I'm working on a extremely simple robot (very first project) that attempts to find the source of a Bluetooth signal. There are two motors that drive the platform and each has an encoder. We've already ...
2
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1answer
1k views

CC3D PWM control signal characteristic (to be simulated by Raspberry PI)

My goal is to control drone by Raspberry PI. The Raspberry PI uses camera and OpenCV, sends control commands to AVR microcontroller which will generate the PWM control signal. Meaning that it will ...
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1answer
153 views

What does internal sparking in a motor mean?

My Arduino + Raspberry Pi robot was working fine in the morning. I tested it, it ran perfectly, and then I switched it off. Now in the evening when I'm trying to run it again, with the same ...
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1answer
100 views

Quadcopter that can carry heavy things? [closed]

So, while I was out drinking with a couple of my friends, one of us said something like 'man, wouldn't it be cool if the beer just came to us?' and that got me thinking. We all have seen some crazy ...
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3answers
2k views

Arduino or Raspberry Pi?

I want to make a object tracking quadcopter for a project. While I'm using the Arduino Mega 2560 as the flight controller, I was thinking of using an additional offboard microcontroller/board for ...
3
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1answer
689 views

Choice of a motor for robotic arm

This is my first post here, so hello all. I really hope I can learn a lot from you guys. I am trying to build a robotic arm to carry an object and put it inside of different boxes that are placed in ...
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1answer
135 views

First build - Quadcopter , need help deciding hardware and connections [closed]

I am building my first drone, Objective: - Need to control drone by wifi on phone or laptop using ground station software of Openpilot I have a Arduino 2560 , cc3d Openpilot flight controller , ...
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1answer
771 views

Quadcopter: X-Y Velocity PID Controller

Good day, Introduction I am currently working on an autonomous quadcopter project. I have currently implemented a cascaded PID controller consisting of two loops. The inner rate loop takes the ...
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1answer
65 views

Which mechanical device could repeatedly present an ID tag to a card-reader

I'm trying to build a test-automation robotic arm which can repeatedly present an ID-tag (such as RFID or NFC card or fob) to a card reader. I suspect our reader fails either (a) after hundreds of ...
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1answer
810 views

Designing Ackerman's Steering Principle for an autonomous robot [closed]

I am working on a high speed autonomous robot (about 6-7 m/s), which does obstacle detection as well as senses traffic lights (I have used Raspberry Pi 3 and Arduino Uno). For the steering ...
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2answers
110 views

Smart Home Model with Raspberry Pi

I'm still new to RPi and I am currently trying to do a smart home model. I planned to use RPi only to control 5 servos (which will be controlling the open/close of the doors by setting the angle) ...