Tony Wall’s Blog

Remember quality? A bit more time upfront saves a ton of trouble later ;-)

BeagleBone Black Serial Debug Connection

BeagleBone Black /

The BeagleBone Black has a built-in debug header allowing you to connect via a serial terminal emulator. Not only does it allow you to view low-level firmware pre-boot and post-shutdown/reboot messages, but it also acts as a fully interactive Linux console once the operating system has started. This post demonstrates with pictures and software links how to quickly setup …

Setting-Up Raspberry Pi for Headless Mode with X11VNC

Raspberry Pi /

If you own a Raspberry Pi and want to use it in “headless” mode (without a display) you’ll probably want more than just an SSH command shell to administer it. Many people install TightVNC however this doesn’t provide connectivity to the root display interface, only to virtual secondary interfaces. Only the root interface behaves like a …

De-Bricking a Buffalo WiFi Router with an Arduino

Arduino, Diagnostics & Repairs, Serial Communication /

My wireless router (Buffalo WZR-D1800H) failed the other day, when an apparent firmware bug caused it to go into a continuous reboot cycle. After going through the various reset options it seemed like it had been turned into an expensive plastic brick. Luckily there was a last resort method to gain debug access, see what …