okalachev

// Copyright (c) 2024 Oleg Kalachev <okalachev@gmail.com>

// Flip controller for the Flix drone https://github.com/okalachev/flix
// Video and details: https://t.me/opensourcequadcopter/21

#define BOUNCE_TIME 0.6
#define ACCELERATE_TIME 0.07
#define BRAKE_TIME ACCELERATE_TIME

enum {

okalachev

#!/usr/bin/env python3

# Read and parse USB data from KingKong/LDARC Tiny X8 2.4G 8CH Radio Transmitter

# Usage: ./tiny_rc.py <device_path>
# Example: ./tiny_rc.py /dev/tty.usbserial-210

# Author: Oleg Kalachev <okalachev@gmail.com>
# https://github.com/okalachev

okalachev

#!/usr/bin/env python3

import rospy
from geometry_msgs.msg import PoseStamped
from gazebo_msgs.msg import LinkStates, ModelStates

rospy.init_node('groundtruth_pose')

pose_pub = rospy.Publisher('groundtruth', PoseStamped, queue_size=1)
# uncomment to loop groundtruth pose to vision pose input:

okalachev

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""MAVLink Monitor
Monitor MAVLink packages from a serial port, UDP, or TCP link.
Usage:
  mavlink_monitor.py [--dialect=<dialect>] [-b] <url>
  mavlink_monitor.py (-h | --help)
Options:
  --dialect=<dialect>  MAVLink dialect [default: common]

okalachev

import requests

r = requests.get('http://192.168.11.136:5000', params={'foo': 123})

print(r.text)

okalachev

#!/usr/bin/env python3

# Fetch all GitHub repo stargazers
# Usage: REPO=<username>/<repo> ./stars.py
# Results are saved in JSON and TXT format into ./<username>-<repo>/ directory (by timestamp)

import os, os.path
from datetime import datetime
import requests
import json

okalachev

TAG=<tag_name> && git tag -d $TAG && git push --delete origin $TAG

okalachev

Show high CPU usage process

The plugin for xbar, thath detects a high CPU consuming process (>50% CPU by default) and shows it in the top menu bar. If there is no high CPU usage the plugin stays quiet.

okalachev

#!/usr/bin/env bash

# Usage: copy <filename>

SSH=($SSH_CONNECTION)
echo scp $1 $(whoami)@${SSH[2]}:$(pwd)

okalachev

Device Tree overlay to run OV7251 camera on CAM0 port of Compute Module 4

This will work on Raspberry Pi OS 2021-01-12 (related DT files were changed in later release).

Copy the binary device tree overlay file to /boot/overlays/:

sudo cp ov7251cam0.dtbo /boot/overlays/ov7251cam0.dtbo