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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Serial Communication between RaspberryPi and CC3D?

I have built a quadcopter with a CC3D FC, using LibrePilot for configuration. Everything is smooth with the tx/rx I used to command the quad with but now I would like to effectively use the RPi as a ...
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1answer
55 views

How do I download libraries onto the Ubiquity Robotics Raspberry Pi image

I downloaded an sd card image by Ubiquity Robotics which is an Ubuntu OS with ROS preinstalled onto my Raspberry Pi. This image creates a pifi access point for the Raspberry Pi and allows me to ssh ...
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43 views

How to get position (X Y values) from a USB optical mouse

I want to use an optical mouse to measure displacement in X and Y direction of my robot. I'm using Ubuntu mate 18.04 on raspberry pi and wrote the following python code : ...
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27 views

How to access raspberry pi over wifi

I have to use raspberry with Arduino on a mobile robot. And access raspberry pi on pc through WiFi. Is it possible? Please explain how to do it.
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42 views

Is it compulsary to learn Arduino programming in order to use Udoo Neo as an IOT device?

I'm an absolute beginner, so please bear with me. I'm currently doing a project where I need to control 2 DC motors using the Udoo board. Should I first learn to use an Arduino or is it possible to ...
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1answer
34 views

What should i do to rebuild robot salto from Berkeley uni as a mechanical engineering undergrad?

What are the main components of robot salto? What are the necessary skills and knowledges to reproduce it? Also as you can see, i am a mecheng and i want to reproduce this robot as finishing project ...
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1answer
47 views

Multiple machine ROS image transmission error

I'm currently trying to establish communication between my Raspberry Pi based robot and a Cluster which are on the same network. Although I am able to ping and SSH one device using the other, I'm ...
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1answer
38 views

Target Recognition for Microcontrollers

I'm building a device using microcontrollers, and part of the device necessitates target recognition. That is to say, if there are three targets, A B and C, I want my device to know when I'm pointing ...
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1answer
125 views

Aliexpress bought BNO055 UART connection

I bought a BNO055 module from Aliexpress which is shown in the picture below. I am able to read the IMU data in an Arduino nano from this BNO055 via an I2C connection. Now, I want to connect it to a ...
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1answer
78 views

Technologies needed for indoor and outdoor navigating robot

Before I begin, I should add that I am a complete beginner in robotics and hope that I can figure out where I should start by asking this question. I am trying to make a robot that is able to ...
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36 views

Can a RPI3B+ handle all this?

I am building a robot that needs to accomplish the following tasks: Keep track of 4 quadrotor encoders, each 979.62 CPR @ ~ 500RPM, so ~ 8163.5 counts per second Read from an RPlidar A1M8, giving out ...
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1answer
111 views

Help Interpreting Raspberry Pi GPIO's allocated to Robot starter kit called AlphaBot2

I am a complete newbie to robotics, so please excuse me if this is a simple question. I bought this robot starter kit and need help understanding which features are associated to which GPIO pins: ...
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30 views

How can i connect arducopter to raspberry?

This is my school project. I would like arducopter connect to raspberry but I do not know how to do it. Please help me!
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1answer
36 views

Accuracy of hall sensor encoders on Raspberry Pi

I have 2 motors (JGA25-370) with hall-sensor encodes. They emit about 90-100 interrupts every 100ms, so 1000 a second. Which means I have an interrupt happening every 1ms. The motors are driven by ...
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34 views

Combining data from 9DOF IMU

My team and I are building an AUV and are planning to replace the existing 6DOF MPU-6050 sensor with a 9DOF Adafruit BNO055 sensor. However, we're unable to figure out how to combine the data from the ...
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1answer
130 views

Raspberry Pi Robot Car won't drive straight, right wheel is faster [duplicate]

My Raspberry Pi car bot will not drive straight at all. After examining and listening to the two motors, I noticed that the right wheel is a lot faster. I have matching wheels and the same code ...
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0answers
62 views

How rational is it to use Intel Realsense for my affordable indoor autonomous robot?

Right now, I am using ESP32 for the motors and planning to add either Raspberry Pi Zero or ARM Cortex-M4 (STM32) and use ROS with Intel RealSense RGBD camera. How sensible is it? I am not expert in ...
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1answer
121 views

Inductive Charging for Alphabot [closed]

I am looking into building a self-docking robot that can charge itself when needed. To accelerate the prototyping phase, I am considering AlphaBot2 with Raspberry Pi 3 B+ as a development platform. I ...
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2answers
303 views

How to move a Stepper Motor to a desired angle with raspberry pi?

I will be using stepper motor in 6 DOF robotic arm along with Servo motors. Unlike Servo motor ,I find difficult to control Stepper motor. I was earlier using only Servo Motors but due to lack of ...
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1answer
157 views

controlling 6-axis robotic arm with raspberry pi, what instructions can do this?

I have been trying to build a robotic arm using a PCA9685 servo controller, a 6-axis robotic arm, and a raspberry pi model b+. I wired them all together accordingly but I have no idea how to actually ...
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1answer
138 views

IRobot 690 - raw wheel encoder counts change with no movement command issued

I am using a Raspberry Pi 3, B+ pertinent libraries are WiringPi, with WiringSerial. Code is written in c. EDIT: the Serial connection is handled through GPIO 14(Tx) & 15(Rx), 5v (Tx) is stepped ...
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2answers
91 views

using motor controllers with Raspberry instead of Arduno. Is it just me or is everyone ok with bad sofftware support?

I bought a Roboclaw controller. Since then, have looked around for other. The software support seems to be the same (to me:sad) state. They all seem to provide Arduino code examples, however, then I ...
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1answer
133 views

raspberry pi operating a unipolar stepper motor with a L293D IC

I need some help with a project where I am trying to operate a unipolar stepper motor with a raspberry pi's using the 4 GPIO pins and using a L293D IC as an amp to get it to the operating 12V of the ...
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2answers
421 views

Radio triangulation with Raspberry Pi

Currently, I am thinking that since electromagnetic waves loose energy over distance, you might be able to figure out the relative distance to each of three radio "beacons" and use this information to ...
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2answers
792 views

Finding relative location of Raspberry Pi robot indoors

I would like to have a Raspberry Pi robot that can find its location in a room relative to an origin point. What methods would be cheapest? What would the most accurate be? Are there any others ...
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0answers
60 views

ROS: TurtleBot3 motors runs 60 seconds after message is seen in topic /cmd_vel

I am running ROS Kinetic, on a Turtlebot3 Burger with a Raspberry Pi3. The goal here is to remotely control the Turtlebot from another Raspberry Pi. The remote controller Pi sends movement ...
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1answer
83 views

What other equipment or hardwares I should buy along with raspberry pi [closed]

I am planning to build some primary level of project like home made robot, which I need to explore an image recognition and path recognition(using four wheels vehicle). So I am looking to buy a device ...
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2answers
53 views

Compatibility of my quadcopter build

I am building my first quadcopter and have multiple questions. I am using a Crius MWC Multiwii SE 2.6 flight controller which will get input from a Raspberry Pi Zero. I have this 4in1 ESC and this ...
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1answer
338 views

How to handle power distribution on a robot?

Our team just finished the FRC competition and I am trying to learn more about robots in general. I'm trying build a robot in a similar setting than the FRC competition. However the RobotRIO is out of ...
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1answer
247 views

Adding ROS to Raspberry Pi car and teleoperation

I just completed a Raspberry Pi car setup shown in the image below. With my car now assembled, I can run a simple Python script put the necessary GPIO pins HIGH or LOW and moves the car around ...
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0answers
630 views

How can I send commands from raspberry pi model 3B to Seriously Pro 3 Flight controller? [duplicate]

I am trying to make a quadcopter that receives commands from my android mobile phone. I currently have the following: Raspberry Pi 3 Model B running on Raspbian. Pi Camera Seriously Pro F3 Flight ...
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1answer
90 views

hard realtime signal processing

I am going to realize a real time monitoring system for medical care and finally the system should make phone calls according to the severity of the result , I would like to know is it best to perform ...
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4answers
332 views

Path of the robot

I have built a simple robot which will move from a source to destination. I want to record a 2d path which the robot has taken in real time. Something which is similar to the image I have take.(...
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1answer
49 views

How can I run Tests/Simulations of Control and Motion Planning for a Bare Metal Robot?

I am using a raspberry pi to practice low level development with a differential drive robot; bare metal without an OS underneath. I've gotten to the point where I have a very small, single purpose ...
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2answers
320 views

Using ROS to control a CMM (Coordinate Measuring machine)

i'm a senior, i really desperate to find answers here. i am building a robotic arm with bunch of low-cost sensors , motors and other actuators. i'm using PI 3 as my Microcontroller. I need helping to ...
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1answer
409 views

Can I use another GPIO pin on the Pi 3 as a RX UART?

I accidently plugged 5v in to the RX UART pin 15 on my Pi, now I'm unable to receive communication on this pin from my connected device. I was wondering if it's possible to use a different GPIO pin as ...
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0answers
189 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
92 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
364 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
29 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
251 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
656 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
109 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
231 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
142 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
107 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
248 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
82 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
838 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
142 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 ...