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
210 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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108 views

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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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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111 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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209 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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75 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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82 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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628 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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579 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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18 views

What is the best microcontroller/SBC + stepper motor controller/driver combo to build a hexapod robot?

I would like to use a set of high power stepper motor controllers and drivers (e.g. Trinamic). Communication protocol of choice is SPI and motion precision is important. What microcontroller or SBC ...
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21 views

Motion Tracking with Arduino Controlled Camera Slider

I have an Arduino-controlled 3-axis camera slider and I'm thinking of implementing a motion tracker that makes the camera move accordingly on the slider. How feasible is this during a 3-month period? (...
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1answer
162 views

Is it possible to control the speed of a hoverboard motor[BLDC motor] with a raspberry pi? If so, how?

In my project, I'm making a robot using two hover board motors, a motor control board such as this one: https://www.ebay.com/p/2242827374?iid=162674407600 and a raspberry pi. I've connected the motor ...
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1answer
71 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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45 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
529 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; extracted them ...
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1answer
41 views

How can I connect arducopter to Raspberry Pi?

This is my school project. I would like arducopter to connect to Raspberry Pi but I do not know how to do it. Please help me!
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1answer
401 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 ...