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Open Hardware/Modding: From Arduino to ESP32 and IGEL OS

Submitted by Roy Schestowitz on Wednesday 22nd of December 2021 12:33:45 AM Filed under
Hardware
  • Making music with a Nano 33 IoT-based MIDI keyboard | Arduino Blog

    As part of an assigned project in his class, Peter Ashmore and a partner were tasked with making some kind of interactive object, so they decided to go with a MIDI keyboard due to their shared enjoyment of music production. Modeled somewhat after the typical Launchpad, the team’s system incorporated a set of 13 buttons spanning one octave, as well as two buttons for controlling the current octave and a knob that regulates the volume.

    The team went with an Arduino Nano 33 IoT as the brains of the operation and wired up the 15 push buttons in a pull-down configuration. After they had finished soldering each component to pieces of perfboard, each element was then assembled into a custom-built chassis that was laser cut from plywood and coated in black spray paint.

  • Turing-ring is a DIY Turing machine consisting of an Arduino and an RGB LED ring | Arduino Blog

    With just an infinite tape, a head that can read or write, a state, and some rules, Turing machines (TMs) are capable of running any computer program. So, after winning a NeoPixel ring in a competition, Mark Wilson wanted to implement his own Turning machine using just a few RGB LEDs and a single Arduino Nano.

    When his aptly named Turing-ring starts up, an initial state and cell values on the tape can be loaded from either internal program storage or over a USB serial connection. From there, the TM can be further modified or run in order to perform a given task. Furthermore, a user can input their own states (denoted by LED colors) onto the tape by turning a rotary encoder and pressing down to confirm their choice. The speed at which the machine iterates through each step is controlled from either the menu or by rotating the dial when a program is running.

  • TTGO T-CAN485 - An ESP32 board with RS485, CAN bus interfaces - CNX Software

    LilyGO is regularly bringing ESP32 boards to market for specific applications, and their latest TTGO T-CAN485 connects ESP32 to CAN bus and RS485 industrial control interfaces.

    The board also takes 5 to 12V power input via a 2-pin terminal, comes with a microSD card for data storage, a USB Type-C port and CH340K serial chip for programming and debuggging, plus a 12-pin GPIO header, some buttons, and an RGB LED.

  • The Inspirer Keeps Your Mood Up With Inspirational Quotes And Soothing Music | Hackaday

    While some people enjoy the cold weather and long, dark nights in the Northern Hemisphere these days, others may find it hard to keep a positive mindset all through the winter. [Michael Wessel] decided he needed to do something about that and came up with The Inspirer, a desktop display that shows inspirational quotes and plays soothing music.

    The design is deliberately bare-bones: a strip of wood, standing upright thanks to two metal brackets, onto which a bunch of components have been screwed, glued and taped. The actual display consists of a row of 14-segment LED modules that can show basic alphanumeric characters; these displays emit white light, but [Michael] added a red color filter in front to give them a more “retro” look.

  • LG All-in-One Thin Clients Preloaded with IGEL OS for Release in 2022

    LG All-in-One thin clients preloaded with IGEL OS will ship on select LG hardware with support for Citrix, VMware Workspace ONE, Windows 365 and more.

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