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possan / rotozoom.c
Created February 7, 2025 22:54
Playbit rotozoom test
// build with
// cc -lplaybit -g -o /tmp/rotozoom rotozoom.c
#include <playbit/playbit.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
struct AppState
{
@possan
possan / TrellisM4LaunchPad.ino
Created June 10, 2024 20:48
Trellis launchpad midi colors
// Trellis M4 MIDI Keypad CC
// sends 32 notes, pitch bend & a CC from accelerometer tilt over USB MIDI
#include <Adafruit_Sensor.h>
#include <Adafruit_ADXL343.h>
#include <Adafruit_NeoTrellisM4.h>
#define MIDI_CHANNEL 0 // default channel # is 0
// Set the value of first note, C is a good choice. Lowest C is 0.
// 36 is a good default. 48 is a high range. Set to 24 for a bass machine.
@possan
possan / Autostart on pi hacky hack.md
Created January 25, 2022 19:54

start.sh

#!/bin/sh
cd ~/dmx-playback/apps/build/
artnet-playback/artnet-playback sample-config.json

Append to ~/.bashrc:

@possan
possan / react-static yarn.lock working after create
Created February 25, 2021 16:37
# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
# yarn lockfile v1
"@babel/cli@^7.5.5":
version "7.12.13"
resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.12.13.tgz#ae2c6a75fa43f3db4bca0659799b0dfca3f5212b"
integrity sha512-Zto3HPeE0GRmaxobUl7NvFTo97NKe1zdAuWqTO8oka7nE0IIqZ4CFvuRZe1qf+ZMd7eHMhwqrecjwc10mjXo/g==
dependencies:
commander "^4.0.1"
@possan
possan / react-static yarn.lock not working
Created February 25, 2021 16:36
# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
# yarn lockfile v1
"@babel/cli@^7.5.5":
version "7.13.0"
resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.13.0.tgz#48e77614e897615ca299bece587b68a70723ff4c"
integrity sha512-y5AohgeVhU+wO5kU1WGMLdocFj83xCxVjsVFa2ilII8NEwmBZvx7Ambq621FbFIK68loYJ9p43nfoi6es+rzSA==
dependencies:
commander "^4.0.1"
@possan
possan / polarmovieconverter.py
Created January 27, 2021 21:33
polar movie converter
# Converts polar image to small led filmstrip
# Convert movie to images: ffmpeg -i a1-2.mov frames/outb-%4d.jpg
INPUTFORMAT = 'frames/oute-{:04d}.jpg'
FRAMES = 2000
OUTPUT = 'a5-filmstrip.png'
OUTPUT2 = '.hitarea.png'
SAMPLES = 30
import math
@possan
possan / gist:fdaae45f307ffd4d2c219465e3991675
Last active January 7, 2021 23:16
Wordpress malware
#
# Wordpress injected malware/worm - go objdump of binary
#
# Authors computers' username still left in binary.
#
# Injects redirect code, linking to sites like:
# transandfiestas
# chatwithgreenbar
# lovegreenpencils
#
@possan
possan / zybo eth test mii.c
Created December 25, 2020 22:08
/******************************************************************************
*
* Copyright (C) 2010 - 2019 Xilinx, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
@possan
possan / lan8720 phy test arduino.ino
Created August 2, 2020 20:39
uint8_t txpin1 = 4;
uint8_t txpin2 = 5;
uint8_t txpen = 6;
uint8_t powerpin = A3;
uint32_t counter = 0;
uint8_t phy_address = 1; // apparently hardcoded on board
uint8_t smi_clock = 8;
uint8_t smi_data = 9;
@possan
possan / DomeTester.pde
Created March 24, 2020 21:17
Dome projection animation tester
// Install and run processing 3 from processing.org
// Open Sketch menu > Click Import library > Add library...
// Install SelectFile plugin (v0.0.2)
// Install Video plugin (v1.0.1)
// Paste this code and hit Run
import select.files.*;
import processing.video.*;
static int IMAGE_DURATION = 3000;