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varlen / lcd.py
Last active February 6, 2025 21:03
Writing on LCD Display using Python and Arduino. Requires pyfirmata module.
from pyfirmata import Arduino, util, STRING_DATA
board = Arduino('COM6')
board.send_sysex( STRING_DATA, util.str_to_two_byte_iter('Hello!') )
def msg( text ):
if text:
board.send_sysex( STRING_DATA, util.str_to_two_byte_iter( text ) )
@varlen
varlen / vjoy.py
Last active February 10, 2022 15:22
Sample of direct communication with virtual game controller using Python. The first file uses PyWin32 and works directly with the Windows API, for older versions of vJoy. The second file uses the DLL of vJoy SDK to command the device.
from win32file import *
import struct, time
CONST_PPJOY_DEVICE = "\\\\.\\PPJoyIOCTL1"
CONST_LOAD_POSITIONS = 0x910
class vJoy(object):
def __init__(self):
self.handle = None
@varlen
varlen / mailTimer.js
Created December 8, 2015 11:12
Write the email then inject this JavaScript on the page to schedule an email submission.
// No Gmail, o ID do botao sempre muda quando a pagina é atualizada
// Mudar o id na linha abaixo
btnElementID = '';
btn = document.getElementById(btnElementID);
intervalID = window.setInterval( function checkTime() {
// https://developer.mozilla.org/pt-BR/docs/Web/JavaScript/Reference/Global_Objects/Date
var send_on = new Date( 2015,11,8,6,0 );
var now = new Date();
if ( now.getTime() > send_on.getTime() ) {
console.info( 'Mandei!' ); // Sent
@varlen
varlen / iHate3Dmovies.js
Last active December 4, 2015 01:15
Use este snippet para esconder as sessões 3D no site da Ingresso.com.
// 2015-12-01 - Varlen Pavani Neto
// Use este snippet para esconder as sessões 3D do site da Ingresso.com
// Esconder todas as sessões 3D
var $hateful3dSessions = $('.tipo-sessao.3D').parents('li.place-hours-it');
$hateful3dSessions.hide();
// Esconder os cinemas que só tiverem sessões 3D
var $allTheaterSessions = $hateful3dSessions.parent();
$allTheaterSessions.each( function( ) {
@varlen
varlen / fotos.ps1
Created December 2, 2015 04:55
Quick and dirty hack to rename a batch of files on Windows using PowerShell.
function Select-Folder($message='Select a folder', $path = 0) {
$object = New-Object -comObject Shell.Application
$folder = $object.BrowseForFolder(0, $message, 0, $path)
if ($folder -ne $null) {
$folder.self.Path
}
}
$Title = "Renomear Fotos Automaticamente";
@varlen
varlen / oneKeyMidiController.ino
Last active August 29, 2015 14:21
Arduino sketch for (really) minimalist MIDI controller
//One Key MIDI Piano
//This is a test for Serial MIDI output through Arduino USB port
//Used Hairless Midi as Serial->MIDI bridge and one push button on pin 53 of Arduino Mega 2560
//Connect GND|<------{|Button|}------>| Pin 53
//Plays a G#2 which is mapped to cowbell on the drums of GarageBand
#include <MIDI.h>
#include <midi_Defs.h>
#include <midi_Message.h>
#include <midi_Namespace.h>
#include <midi_Settings.h>