Projects in the topic hardware

The SMBus standard specifies an address resolution protocol (SMBus ARP.) It has two key features : * Handle I2C slave address collisions. If two SMBus slaves would use the same I2C address, ARP lets one of them pick a different address to avoid the address collision.

Building on top of <a href="http://rdimitrov.twistedsanity.net/blog/show.php?entry=Microcontroller%20Class%20D%20Amplifier,%20Rev2&quot;&gt;Rouslan Dimitrov's Microcontroller Class D Amplifier</a>, I developed the idea to feed the power amplifier with PCM data directly. Rouslan does some dithering and noise shaping, but I'm convinced that proper interpolation would sound better. The ATtiny is too slow to do even cubic interpolation so I'll move that into the host.

Recently I became a (not very proud) owner of Acer Aspire Switch 10E, a small notebook/tablet convertible based on Intel baytrail platform. Replacing preinstalled (32-bit!) Windows 8.1 with (64-bit) openSUSE proved more challenging than expected, mostly because the device is haunted by a 32-bit UEFI so that it took me a week to make it boot without an external USB flash disk. Even today, a lot of issues persist. As I do not want to waste a (partially) good hardware, I would like to make it as usable as possible. This is much less selfish than it sounds as there are many other devices based on Intel baytrail platform so that the effort is going to help their owners as well (if successful, that is).

• Complete hardware enablement on a prototype tablet that will be going to market soon as a 'pure Linux' tablet.
• Provide a custom image to the manufacturer for preinstallation of openSUSE on said tablet.

https://github.com/viccuad/gomoduino Gomoduino

The GPD Win is a Nintendo 3DS XL sized PC featuring a keyboard and gaming controls. Having openSUSE working on it would be great, unfortunately Tumbleweed doesn't work at all on it and Leap 42.2 is lacking many important features.

Just for Fun! Basically, it would be a keyboard using a straight telegraph key for taping Morse Code.

I'd like a way to have a device on my desk which lights up to indicate that I have something I should be paying attention to. Initially, I'd like this to be for Office365 calendar events and GitHub mentions, but ideally it should support arbitrary messages. The plan is to assign specific colors (ideally "patterns" consisting of a sequence of colors and time) to specific message types. I have a handful of raspberry Pi Zeroes, a couple of OLEDs, a strand of individually-addressable RGB LEDs, a power supply, and some misc electronics (like the 3.3-5v logic level shifter necessary for the 5v LED strand). I'm thinking Python is probably the way to go for the software. I'm hoping OpenSUSE actually works on the Pi zero. :D If not, there's an ESP32 with a built-in display and a few Pi 3s laying around barely used, maybe one of them will work.

Project Description

I have a box room in the garage where I store all my precious mountain gear. This project aims to create a remote alarm system using a pair of MCUs (a RaspberryPi pico and a ESP8266) connected by a LoRa PtP link.

Project Description

Device for connecting an electric guitar or bass to a computer via USB-C. It is basically just a glorified A/D converter, although with a twist. It can emulate proprietary commercial devices for use with applications such as Rocksmith. The name comes from the official device for Rocksmith, which is named Realtone Cable.

Project Description

The goal is to build a custom PCB and firmware for a smart meteostation with ESP32 at it's core. The board should have PoE available. Sparkfun Weather Meter Kit is used for the anemometer, wind vane and rain gauge.