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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Waking Up Roomba Over Serial

Sorry if this is a noobie question, it's my first time posting on this forum... I've been trying to mod an old Roomba 400 series (model #4220) by adding a raspberry pi to it. (I know real original ...
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1answer
168 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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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
163 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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Power to Raspberry Pi and DC motors from a single USB power bank

I'm running a simple robot involving a Raspberry Pi 3 and 2 JGA25-370 motors. The system is powered from a single Powerbank (EasyAcc 10000MAh) which has 2 2A ports. DIY USB cable has data pins ...
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1answer
30 views

How do I convert centre-returning joystick values to dual hobby-motor direction?

Currently my setup is: 2x hobby TT motors connected to a Pi Zero with a motor HAT Python script running on the Pi which runs a Blynk python client and controls motors via the gpiozero library Blynk ...
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3answers
63 views

I wanna make a raspberry pi car using an RC car. I would like to know if the servo multiplexer is necessary?

So I'm working on a project and it involves making a raspberry pi car, be it from scratch or with the help of can rc car. I chose the latter. Now the problem is I don't really have servo multiplexers ...
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32 views

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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74 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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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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59 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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78 views

how to actuate pneumatic muscle by the signals received by emg sensors interfaced with raspberry pi?

My aim is to actuate a pneumatic muscle based on signals received by EMG sensors placed on the biceps. Is there any Matlab code which can process the received EMG signals and convert them into any ...
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609 views

CC3D OpenPilot - Communication port

I am building a quadrotor with a CC3D (OpenPilot) and a RPi. My first idea is trying to communicate the CC3D with the RPi using the main port of the first one but I can't find any information about ...
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453 views

RNN instead of a PID controller

I am building a drone using the raspberry pi and I am using 6*PID controllers to control the speed and the value for each angle, can I use a recurrent neural network (RNN) or other neural network to ...
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192 views

Raspberry Pi finer servo control

I'm usig RPI and Servoblaster to control servos. I've set the --step-size to 2 us, but I'd like to decrease it to 1us. I've tried to set the ...
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Using Scratch with Waveshare Alphabot pi robot

I am trying to find out if and how i could use Scratch to control Waveshare's Alphabot kit. I want to be used as an entry level robotics training for kids 8-10 that already manage standard Scratch. ...
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Controlling high torque servo motors with Raspberry Pi

I need to control 10 Standard Servo Motors (operating at 4.8-7V/300mA-1A/2.5kg-5kg torque) in my project. I'm using RPi as my processor and I was looking for a servo driver. I came across PCA9685 16-...
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Raspberry pi 3b+: any recommendarion for a tube wind speed sensor for raspberry

I am looking for a tube wind speed sensor compatible with raspberry pi 3 b+. I found some on internet, but i dont know if they are compatible, most are for flying devices, i will use the sensor for ...
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9 views

audio_play dst parameter

I am testing audio_capture and audio_play node on raspberr yp 4B. Here when i tested it by capturing audio on pi and playing in remote computer with audio_play it is playing the audio on my headphone. ...
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8 views

Get detections from picamera and control drone accordingly

I am working on a project where I built a drone, with a Navio 2 and RPi3B+, and now I want to be able to control it based on inputs from an object detection program. I wrote the program in Python ...
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15 views

Creating a Raspberry Pi drone without Navio

I'm very interested in developing software to run an autonomous drone. Preferably using the raspberry pi. There is a lot of information on the internet, much of it is outdated and is extremely ...
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29 views

Pi 3 drone that can be automated using Python

For the final project of my computer science class I would like to build a 3D printed drone using a Raspberry Pi 3 that can be automated using python script. I am at a loss regarding what parts I ...
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how to integrate apm 2.8 and raspberry pi 3 for object tracking

Please I want to carry out a project on object tracking, I have an APM 2.8 and a raspberry pi 3 how do I command the flight controller to takeoff directly from my pi interface?, any advice on how I ...
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1answer
53 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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43 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
489 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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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 and extracted them into my catkin_ws/src folder and ran catkin_make. Then I edited the ...
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1answer
32 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
252 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 ...