Adrian Pistol vifino

A common name for the interface is HUB75

The displays use shift registers for columns and two sets of row multiplexers.

Typical organization

32x32 panel

Organized in two halfs of 16x32 tiles
32 bit long RGB column drive shift registers
4 bit to 16 row drive demultiplexers

This was a huge hassle to figure out, so I wrote up a little guide in hopes that others would find it helpful:

How to convince macOS to do IPv6 DNS lookups when your only IPv6 address is via a VPN or tunnel of some sort

The Problem

macOS's domain name resolver will only return IPv6 addresses (from AAAA records) when it thinks that you have a valid routable IPv6 address. For physical interfaces like Ethernet or Wi-Fi it's enough to set or be assigned an IPv6 address, but for tunnels (such as those using utun interfaces) there are some extra annoying steps that need to be taken to convince the system that yes, you indeed have an IPv6 address, and yes, you'd like to get IPv6 addresses back for DNS lookups.

I use wg-quick to establish a WireGuard tunnel between my laptop and a Linode virtual server. WireGuard uses a utun user-space tunnel device to make the connection. Here's how that device gets configured:

	2 tone
	2-step garage
	4-beat
	4x4 garage
	8-bit
	acapella
	acid
	acid breaks
	acid house
	acid jazz

	from selenium import webdriver
	from selenium.webdriver.common.keys import Keys
	from selenium.webdriver.chrome.options import Options

	import xml.dom.minidom as minidom
	import pycountry
	import traceback

	chrome_options = Options()
	chrome_options.add_argument("--headless")