tejashah88

ROS 2 - Calculator

Part 1 - Setting up service definitons

1. Open a new terminal and source the workspace

cd ~/ros2_helloworld_ws
source install/local_setup.bash

tejashah88

Set locale to UTF-8

sudo apt update && sudo apt install locales -y
sudo locale-gen en_US en_US.UTF-8
sudo update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
export LANG=en_US.UTF-8

Update system

tejashah88

ROS 2 - Hello World Part 2 - Mouse Sensor

1. Open a new terminal and source the workspace

cd ~/ros2_helloworld_ws
source install/local_setup.bash

2. Create a new package

tejashah88

Part 1 - Preparing the workspace

1. Install needed tools

sudo apt install python3-colcon-common-extensions -y
sudo apt install python3-rosdep2 -y

# !!! NEW Needed Tools !!!
sudo apt install python3-pip
pip install setuptools==58.2.0

tejashah88

Original setup guide: https://rebrand.ly/ros/install

NOTE: I recommend opening this guide up within the VirtualBox. Here's the short link for easy access: rebrand.ly/ros/quick-install

Fix sudo access

su
adduser <username> sudo
exit

tejashah88

Create a new package

cd ~/ros2_ws/src
ros2 pkg create monitor_station --build-type ament_python --dependencies rclpy
code monitor_station/

Install extra dependencies

tejashah88

Part 1 - Preparing the project workspace

1. Install needed tools

sudo apt install git -y
sudo apt install python3-colcon-common-extensions -y
sudo apt install python3-rosdep2 -y

2. Create a new directory for your workspace and "change directory" (cd) to it in terminal

tejashah88

import random

CHOICES = ['R', 'P', 'S']

# Ask user for input (rock, paper, or scissors)
user_input = input('Rock, paper or scissors (type R, P, or S): ')

# Check if user input is valid
if user_input not in CHOICES:
    print('Invalid choice')

tejashah88

#!/bin/bash

# Source: OpenSSL Certificate Authority: https://jamielinux.com/docs/openssl-certificate-authority/index.html

# A function which pauses execution until 'Enter' is pressed
# If at least one parameter is given, that parameter will be displayed instead
pause() {
    if [ $# -eq 0 ]
        then
            read -rsp $'Press enter to continue...\n'

tejashah88

// Credits go to @Anjuna5 for original code: https://stackoverflow.com/a/39838257/9779148

const mode = arr => [...new Set(arr)]
  .map(value => [value, arr.filter((v) => v === value).length])
  .sort((a,b) => b[1] - a[1])
  .filter((v, i, a) => v[1] === a[0][1])
  .map(v => v[0]);