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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Raspberry Pi’ Category

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Measuring environmental aircraft noise (Zelfbouw meetstation voor meten vlieghinder.pdf – Google Drive)

Posted by jpluimers on 2022/10/12

I’ll be following this guideline (or maybe by now already have): Zelfbouw meetstation voor meten vlieghinder.pdf (Google Drive) This is what I needed: If you do not have a Raspberry Pi, then you can get it from them as a package for EUR 115 (including case, preinstalled microSD-card, charger and WiFi adapter):[Wayback/Archive.is] Raspberry Pi Zusatzkit zum Komplettpaket Lärm (with configuration manual at [Wayback] Anleitung Raspberry.pdf)
Documentation: Via: Related: –jeroen Read the rest of this entry »

Posted in Development, Hardware Development, Hardware Interfacing, Raspberry Pi, USB | Leave a Comment »

Make your Pi Zero into an OTG USB stick: Pi Zero USB Stem – KIT-14526 – SparkFun Electronics

Posted by jpluimers on 2022/08/24

Cool: [Wayback/Archive.is] Pi Zero USB Stem – KIT-14526 – SparkFun Electronics

The Pi Zero USB Stem is a PCB kit that turns a Raspberry Pi Zero into a USB dongle. Once the Stem is installed, your Raspberry Pi can be plugged directly into a computer or USB hub without any additional cables or power supplies. The Raspberry Pi then acts as a USB device using its own Linux kernel gadget drivers to get started.

The Zero Stem is designed to be soldered directly to the USB SMD test pads on the bottom of the Raspberry Pi Zero, needing no wires or pogo pins at all, just solder and a soldering iron! Attaching the stem to your Pi also allows you to create a portable VNC server, or even cluster several Raspberry Pi Zeros with just a USB hub.

The Zero Stem is compatible with the Raspberry Pi Zero v1.3 and the Raspberry Pi Zero W v1.1, but unfortunately it is not compatible with the Raspberry Pi Zero v1.2 or any full-size Raspberry Pi due to their shapes and sizes.

Note: In order for your Pi Zero to function as a USB device with this Stem, you will need to configure it to act as one. You will be able to find these instructions in the Documentations tab under “How to OTG Fast“.

Related:

Video below the signature or at [Wayback/Archive.is] Product Showcase: Pi Zero USB Stem – YouTube.

Via [Archive.is] Chris Bensen on Twitter: “Oh this is cool!”.

Related: RPIZ USB OTG Raspberry Pi Zero – Hi-Speed OTG-adapter and RPIZ USB ADAPTER Raspberry Pi Zero – Adapter van contact naar USB

Pictures:

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Posted in Development, Hardware Development, Raspberry Pi, Soldering | Leave a Comment »

Eff-Uno Racer v1 by chrisbensen – Thingiverse: Open Wheel Race Car from LEGO© and 3D printed bricks, with RC motors controlled by a Raspberry Pi and Arduino

Posted by jpluimers on 2022/08/17

This is so cool!

[Wayback/Archive.is] Eff-Uno Racer v1 by chrisbensen – Thingiverse

Welcome to the home for the things to print for the Eff-Uno Racer project ([Wayback/Archive.is] github.com/oracle-devrel/eff-uno-racer). Eff-Uno Racer is a LEGO© Open Wheel Race Car that you can build and remotely control. Most of it is made with LEGO© bricks but the motors are regular RC motors controlled by a Raspberry Pi and Arduino. Below are the extra parts needed.

The videos are via these three tweets:

List is at: [Wayback/Archive.is] Cool DevRebel Projects – YouTube

Videos when writing (by now there should be more):

  1. [Wayback/Archive.is] Cloud Car Episode 1 — Custom Breadboard for Pi Zero – YouTube
  2. [Wayback/Archive.is] Cloud Car Episode 2 — Pi Controlled Motors – YouTube
  3. [Wayback/Archive.is] Cloud Car Episode 3 — Shoving a Pi & RC Motor into a Toy Car – YouTube
  4. [Wayback/Archive.is] Episode 4: Shoving a Motor and Speed Controller into a Toy Car – YouTube
  5. [Wayback/Archive.is] Episode 5 — Next Stage: 3D Printed RC Servo Motor Adapters – YouTube

Via [Archive.is] Chris Bensen on Twitter: “If you want to build your own open source cloud connected toy race car follow this thing”

–jeroen

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Posted in 3D printing, Arduino, Development, Hardware Development, LifeHacker, Power User, Raspberry Pi | Leave a Comment »

Some @MCH2022Camp badge updates I found on Twitter

Posted by jpluimers on 2022/07/19

For all attending [Wayback/Archive] May Contain Hackers 2022 , a few things to check out:

  • their blog contains new posts with exiting news: [Wayback/Archive] Weblog | May Contain Hackers 2022 – blog
  • Tweeps and tweep-groups are fiddling with the MCH2022 badge already resulting in cool things like:
    • The MCH2022 terrain as a gameboy map (which runs on the MCH2022 badge)
    • There is a batch housing you can 3D print
    • Thumb knobs for the MCH2022 badge to it is easier on your fingers (2 models)
    • More software to run on the MCH2022 badge (like a CTF game)
    • Doom running on the badge (that of course was just a matter of time)
    • After MCH2022 there are 3 more hackercamps in Europe

More below…

Read the rest of this entry »

Posted in Conferences, Development, ESP32, Event, Hardware Development, Raspberry Pi, RP2040, Scripting, Software Development | Leave a Comment »

Last days until the May Contain Hackers 2022 camp; the badge project can still use some help on the software side: Python apps, FPGA, documentation, etc

Posted by jpluimers on 2022/07/11

After yesterdays post (which I will be editing to add some more pictures) MCH2022 badge sneak previews from tweeps that attended the Bitlair 20220709 Sweatshop (@MCH2022Camp) now a call for help:

The Badge Team needs volunteers helping them on the software side.

At the badge event, the version 1.0 firmware was flashed so the badge will function perfectly fine during the event, but it would be cool if more features are available that attendees can get when upgrading at the event or downloading from the hatchery.

There is a virtual environment to test and a GitHub projects page with open issues to get started.

See the links below on how you can help:

Read the rest of this entry »

Posted in Development, ESP32, Hardware Development, Python, Raspberry Pi, RP2040, Scripting, Software Development | Leave a Comment »

MCH2022 badge sneak previews from tweeps that attended the Bitlair 20220709 Sweatshop (@MCH2022Camp)

Posted by jpluimers on 2022/07/10

The MCH2022 badge has an ESP32 (with WiFi!), a RP2040 and an FPGA next to a full colour TFT LCD, buttons (including joystick!), LEDs, LiPo battery, USB-C connector, micro SD-card slot and more (see below) and SHA2017 badge compatibility. How cool is that!

There is a wealth on information for this at [Wayback/Archive] Badge.team (some 22 repositories and counting: [Wayback/Archive] Badge.team: search for repositories containing mch2022).

Good starts are [Wayback/Archive] MCH2022 badge | BADGE.TEAM and [Wayback/Archive] Software Development | BADGE.TEAM (yes of course you can write your own software for it and even distribute it through the [Wayback/Archive] hatchery.badge.team Hatchery).

Below are lots of tweets including some of the Twitter retrospect that organically grew (just like the sweatschop event) on Twitter the day after.

From the original announcement [Wayback/Archive] May Contain Hackers 2022: Presenting: The MCH2022 badge! , this is what hardware is in it

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Posted in Development, ESP32, Hardware Development, Raspberry Pi, RP2040, Soldering | Leave a Comment »

Jeff Geerling on Twitter: “I plug computers into my computers…” is indeed a PCIe KVM board based on a Raspberry Pi Compute Module 4

Posted by jpluimers on 2022/05/10

Last month, I wrote

Hopefully the picture below is the board of a PCIe KVM board based on a Raspberry Pi Compute Module 4 supporting Power over Ethernet (PoE). At least it seems to looking at the thread started by…

The thread was by Jeff Geerling on Twitter: “I plug computers into my computers…”.

Jeff followed up on this much sooner than I expected with [Wayback/Archive] Jeff Geerling on Twitter: “Hey look! That computer inside a computer thing is real now! It’s the PCIe version of the Blicube KVM: …”

Read the rest of this entry »

Posted in Compute Module, Development, Ethernet, Hardware, Hardware Development, KVM keyboard/video/mouse, Network-and-equipment, PiKVM / Pi-KVM, PoE - Power over Ethernet, Power User, Raspberry Pi, Wake-on-LAN (WoL) | Leave a Comment »

Jeff Geerling on Twitter: “I plug computers into my computers…”

Posted by jpluimers on 2022/04/20

Hopefully the picture below is the board of a PCIe KVM board based on a Raspberry Pi Compute Module 4 supporting Power over Ethernet (PoE).

At least it seems to looking at the thread started by [Wayback/Archive] Jeff Geerling on Twitter: “I plug computers into my computers… “:

It would also very much match the below issue that Jeff raised:

Read the rest of this entry »

Posted in Development, Ethernet, Hardware, Hardware Development, KVM keyboard/video/mouse, Network-and-equipment, PiKVM / Pi-KVM, PoE - Power over Ethernet, Power User, Raspberry Pi | Leave a Comment »

The Seven Step Process to Creating an Amazing Demo | by Chris Bensen

Posted by jpluimers on 2022/01/20

On the reading list: [Wayback/Archive.is] The Seven Step Process to Creating an Amazing Demo | by Chris Bensen | Oracle Developers | May, 2021 | Medium

So you have some crazy idea and want to build a demo. This seven step process should help you turn that idea into something amazing

Chris created the World’s Largest 3D Printed Brick Computer and was the driving force behind the Raspberry Pi Mini Super Computer [Wayback].

World’s Largest 3D Printed Brick Computer

World’s Largest 3D Printed Brick Computer

Raspberry Pi Mini Super Computer

Raspberry Pi Mini Super Computer

–jeroen

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Posted in Development, Geeky, Hardware Development, Raspberry Pi, Software Development | Leave a Comment »

GitHub – JanDerogee/TeleJukebox: A project based on the concepts of the Wonderfoon and Arduinofoon

Posted by jpluimers on 2021/11/18

[Wayback/Archive.is] GitHub – JanDerogee/TeleJukebox: A project based on the concepts of the Wonderfoon and Arduinofoon which simplfies the design of the Wonderfoon keeping the most important music playback feature down to

a simple PCB in a small case where you plug the phone in

…

The completed project works very simple:

  • Pick up the phone, you hear the “dial tone” MP3, Dial a number, you hear the MP3 0..9 playing (depending on the dialed number), When the song is over, you hear the “disconnected” MP3, You can dial another number and hear another song or hang up the phone.
  • Some phones also have a button on the front. When you press this button, the phone randomly playes one of the songe 0..9 and when that song is over, it automatically plays a new song, randomly. This will allow the person on the phone to continuously listen to the music. This may be of help to those who can’t figure out how it works but love to hear the songs over and over again.
  • You can configure the music folder from which the MP3s are played, you can use up to 10 different folders
  • You can configure the volume of the device
  • Configurations are done through the phone itself (dial 738 OR hold the button while picking up the handpiece), you hear a voice that guides you through a menu and all you need to do is dial in your settings value.

You can power this design through a USB port cable. This way the device can be fed using a simple mobilephone charger OR be connected to the PC. When connected to a PC, the TeleJukebox identifies itself like a USB-stick and you can easily modify the file without removing the card from the system. Meaning that you do no even need to open the case in order to change the collection of MP3 files. Keep in mind that when the device is in USB-stick mode, it cannot playback MP3 files meaning that in this mode it will not act like a TeleJukebox.

Music rights

Especially when using this in a professional environment. be sure the music that plays is rights free (there are music therapists for treating people with Alzheimer’s and dementia that can help you with that).

Steps, reasoning, and building instructions

A less in depth Dutch article (with 13 minute explaining video below) explaining most of the steps and all the reasoning is this multi-part one:

  1. [Wayback] .Build – Bouw een Wonderfoon – Bouw een Wonderfoon voor iemand anders – Achtergrond – Tweakers

    It works with these and younger phones as long as they can do pulse-dialing:

    De T65, W65 en T65 TDK

  2. [Wayback] .Build – Bouw een Wonderfoon – Wat is een Wonderfoon? – Achtergrond – Tweakers

    The small regular and debug boxes under the PTT/KPN phone connector box:

    .Build Wonderfoon - Twee keer TeleJukebox

  3. [Wayback] .Build – Bouw een Wonderfoon – Een goedkopere variant – Achtergrond – Tweakers
  4. [Wayback] .Build – Bouw een Wonderfoon – Slopen is zonde – Achtergrond – Tweakers

    Both boards with electronics soldered:

    .Build Wonderfoon - Beide varianten van de TeleJukebox

    The non-debug board with components to be soldered:

    .Build Wonderfoon - Onderdelen TeleJukebox

  5. [Wayback] .Build – Bouw een Wonderfoon – T65 bewerken – Achtergrond – Tweakers

    The small cleanup and modification steps (shorting the microphone) for the T65 phone:

    .Build Wonderfoon - Contact haakT65 schoonmaken.Build Wonderfoon - Contact haakT65 schoonmaken

    .Build Wonderfoon - Aansluitingen T65.Build Wonderfoon - Aansluitingen T65.Build Wonderfoon - Aansluitingen T65.Build Wonderfoon - Aansluitingen T65

  6. [Wayback] .Build – Bouw een Wonderfoon – Solderen maar! – Achtergrond – Tweakers

    Schematics:

    .Build Wonderfoon - Schema TeleJukebox

    Shopping list:

    – 1x Pcb of perf board (€ 1,01)
    – 1x Arduino Pro Micro (€ 7,95)
    – 1x DFPlayer mp3-speler(€ 0,73)
    – 1x TIL111 optocoupler (€ 0,41)
    – 2x Weerstand 4K7 Ohm (€ 0,16)
    – 7x Weerstand 2K7 Ohm (€ 0,56)
    – 1x Weerstand 560 Ohm (€ 0,08)
    – 1x Elco 1000 µF 6.3 V (€ 0,23)
    – 1x Condensator 330nF (€ 0,13)
    – 1x Condensator 100nF (€ 0,05)
    – 2x Led (€ 0,06)
    – 1x USB, type B, pcb (€ 0,67)
    – 1x Tactile switch (€ 0,09)
    – 1x Pinheader, male, 6 breed (€ 0,03)
    – 4x Jumper kabel, female (€ 1,95)
    – 1x Micro sd-kaart (€ 2,50)
    – 1x PTT-wandcontactdoos (€ 2,99)
    – 1x Behuizing (€ 1,22)
    Totaal € 20,82

    Voor de compacte pcb kun je de switch, een led, een weerstand van 2k7 Ohm en de twee weerstanden van 4k7 Ohm weglaten.

  7. [Wayback] .Build – Bouw een Wonderfoon – Voor wie gaat hij worden? – Achtergrond – Tweakers

    The inside of the non-debug box:

    .Build Wonderfoon - TeleJukebox

 

Wonderfoon got more versatile

Note that the most recent Wonderfoon products got more versatile allowing more songs, warnings for taking pills, and ring-reminders based on morse code.

[Wayback] Home | Wonderfoon

. De Wonderfoon-Centrale

–jeroen

Read the rest of this entry »

Posted in Arduino, Arduino, Development, ESP32, ESP8266, ESP8266X, Hardware, Hardware Development, Hardware Interfacing, Raspberry Pi, Software Development | Leave a Comment »

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