Thomas shares makes | articles tagged "linux"

ILI9341 SPI TFT on the raspberry pi4

I've been running network services on embedded arm platforms for for more than 8 years now, and when things go wrong, had to drag around HDMI monitors to hook up. For the last years I had a pi connected to the serial console to avoid that.

I have been mounting all my networking and smarthome devices on a DIN rail, and I had some small 2.2" TFT displays around for a different project.

I thought it would be nice to create a raspberry pi enclosure that included such a display so there's a real video console on the device that can also be used as status display.

linux

Networked USB scanner

I have a USB connected flatbed scanner, a Canon CanoScan LiDE 110. I need to use it more frequently these days, and figured it would be handy if I connect it to my office-rpi and use it over the network.

raspberrypi

RFID Card Jukebox with Raspberry Pi

When a friend of mine showed the awesome little wooden Jukebox he made for his kids, I loved the idea, and knew I could make a similar contraption by recycling an old Raspberry Pi 1 I had on a shelve.

ssh

SSH MacGyver: Ssh for the Poweruser

Ssh ideas for the power user.

embedded

Debugging the free_ecb_at91 board using JTAG

For a school project early 2007 (a study of embedded Linux on the AT91RM9200 ARM9 processor) I got familiar with the GNU development tools and setup required to run a Linux based operating system.

Using the setup described here I was able to inspect the inner workings of Darrell loader in real time, set hardware breakpoints, step through the program flow and inspect values of program variables while the CPU core was halted.

linux

Notes about my old LAN server

My old server functioned as an internet gateway and DHCP and masquerading DNS server. The last two are not necessary, but it's always easy if you just have to plug you cable into the LAN, and don't have to configure your network adapters. It also ran an Apache web server, to provide an interface to some functions.

linux

Linux Screenshots

Here are some screenshots (anno 2006).

linux

Using a (Qume) serial terminal with Linux

In this text I explain how to configure a Linux server so that it can be used with a serial terminal (like the Qume qvt101). This document is not Linux distribution-specific, and applies to any recent distribution that uses agetty (other getty programs should work too, but program's parameters may differ).

networking

Using your WRT54 to secure your email connections

Fetching POP3 mail over an untrusted WiFi public access point is dangerous, as the password is transmitted unencrypted (in plain text). Anyone with a laptop and a suited program can sniff your password right out of the air, along with your email. Sending mails is also impossible most of the time, since most ISP's only relay mail from computers directly connected to their network.

These two problems are solved by fetching and sending your email via an encrypted connection between your laptop and Internet gateway at home. If you run Linux and have a WRT54G, and it's running OpenWRT, you're almost there. Just follow this guide and you'll be set in under half an hour.