Skip to content

Instantly share code, notes, and snippets.

View ricardodeazambuja's full-sized avatar

Ricardo de Azambuja ricardodeazambuja

View GitHub Profile
@ricardodeazambuja
ricardodeazambuja / ARMonQEMUforDebianUbuntu.md
Created September 29, 2024 22:54 — forked from luk6xff/ARMonQEMUforDebianUbuntu.md
Emulating ARM with QEMU on Debian/Ubuntu

You might want to read this to get an introduction to armel vs armhf.

If the below is too much, you can try Ubuntu-ARMv7-Qemu but note it contains non-free blobs.

Running ARM programs under linux (without starting QEMU VM!)

First, cross-compile user programs with GCC-ARM toolchain. Then install qemu-arm-static so that you can run ARM executables directly on linux

If there's no qemu-arm-static in the package list, install qemu-user-static instead

@ricardodeazambuja
ricardodeazambuja / work-with-multiple-github-accounts.md
Created July 21, 2024 12:46 — forked from rahularity/work-with-multiple-github-accounts.md
How To Work With Multiple Github Accounts on your PC

How To Work With Multiple Github Accounts on a single Machine

Let suppose I have two github accounts, https://github.com/rahul-office and https://github.com/rahul-personal. Now i want to setup my mac to easily talk to both the github accounts.

NOTE: This logic can be extended to more than two accounts also. :)

The setup can be done in 5 easy steps:

Steps:

  • Step 1 : Create SSH keys for all accounts
  • Step 2 : Add SSH keys to SSH Agent
@ricardodeazambuja
ricardodeazambuja / setup.py
Created May 15, 2023 22:58 — forked from juancarlospaco/setup.py
setup.py Template, Generic but Complete, with instructions to Release to PyPI, DEB, RPM, PKGBUILD, EXE, EGG, ZIP, PYZ, and more.
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
#
# To generate DEB package from Python Package:
# sudo pip3 install stdeb
# python3 setup.py --verbose --command-packages=stdeb.command bdist_deb
#
#
# To generate RPM package from Python Package:

GCC compiler optimization for ARM-based systems

2017-03-03 fm4dd

The gcc compiler can optimize code by taking advantage of CPU specific features. Especially for ARM CPU's, this can have impact on application performance. ARM CPU's, even under the same architecture, could be implemented with different versions of floating point units (FPU). Utilizing full FPU potential improves performance of heavier operating systems such as full Linux distributions.

-mcpu, -march: Defining the CPU type and architecture

These flags can both be used to set the CPU type. Setting one or the other is sufficient.

# Cache sudo password
sudo -v
# Enable installation of 32-bit packages
sudo dpkg --add-architecture i386
# Install Adobe Reader
wget ftp://ftp.adobe.com/pub/adobe/reader/unix/9.x/9.5.5/enu/AdbeRdr9.5.5-1_i386linux_enu.deb
sudo dpkg -i AdbeRdr9.5.5-1_i386linux_enu.deb
@ricardodeazambuja
ricardodeazambuja / using-google-takeout.md
Created December 5, 2022 13:39 — forked from chabala/using-google-takeout.md
Merge and extract tgz files from Google Takeout

Recently found some clowny gist was the top result for 'google takeout multiple tgz', where it was using two bash scripts to extract all the tgz files and then merge them together. Don't do that. Use brace expansion, cat the TGZs, and extract:

$ cat takeout-20201023T123551Z-{001..011}.tgz | tar xzivf -

You don't even need to use brace expansion. Globbing will order the files numerically:

$ cat takeout-20201023T123551Z-*.tgz | tar xzivf -
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
@ricardodeazambuja
ricardodeazambuja / gist:eb668cb015055f8c91eb9ed2f5f3ee43
Created March 12, 2022 22:55 — forked from rxaviers/gist:7360908
Complete list of github markdown emoji markup

People

:bowtie: :bowtie: 😄 :smile: 😆 :laughing:
😊 :blush: 😃 :smiley: ☺️ :relaxed:
😏 :smirk: 😍 :heart_eyes: 😘 :kissing_heart:
😚 :kissing_closed_eyes: 😳 :flushed: 😌 :relieved:
😆 :satisfied: 😁 :grin: 😉 :wink:
😜 :stuck_out_tongue_winking_eye: 😝 :stuck_out_tongue_closed_eyes: 😀 :grinning:
😗 :kissing: 😙 :kissing_smiling_eyes: 😛 :stuck_out_tongue:
@ricardodeazambuja
ricardodeazambuja / Send infrared commands from the Arduino to the iRobot Roomba
Created January 23, 2022 20:34 — forked from probonopd/Send infrared commands from the Arduino to the iRobot Roomba
Send infrared commands from the Arduino to the iRobot Roomba. Use a transistor to drive the IR LED from pin D3 for maximal range.
#include <IRremote.h>
/*
Send infrared commands from the Arduino to the iRobot Roomba
by probono
2013-03-17 Initial release
@ricardodeazambuja
ricardodeazambuja / server.py
Created September 18, 2021 18:16 — forked from dragermrb/server.py
Python 3 HTTP Server with Basic Authentication
import http.server
import cgi
import base64
import json
from urllib.parse import urlparse, parse_qs
class CustomServerHandler(http.server.BaseHTTPRequestHandler):
def do_HEAD(self):