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davedarko

Web developer and arduino tinkering, LEDs blinking sci-fi nerd - "I'm a peacock, you gotta let me fly"

Berlin, Germany, Europe, Earth
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47.9k Followers
362 Following
114 Projects
2.5k Likes
  • Projects 114
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  • Contributions 27
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  • Lists 1
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  • Pages 74
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  • Following 3527
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  • Bits 274
davedarko
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Who I Am

Landed on my feet at -removed company name- when I was thrown out of university. My dad is responsible for my interest in electronics. I saw smoke and things exploded and I heard him cursing... didn't know it wasn't supposed to be that way but it was interesting to watch :)

Why I'm on Hackaday.io

Follow me on Mastodon!

arduino javascript php mysql mqtt ESP12 ESP8266 led Blinking game boy LAMEBOY
  • GitHub
  • OSHpark
  • YouTube
  • Instagram
  • mastodon

This user joined on 03/24/2014.

Hackaday Prize Collaboratorium: 1

My Projects

3.8k
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29
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Space Invaders inspired PCB art thing
Project Owner Contributor

LED handheld

davedarkodavedarko

868
18
0
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inofficial conference badge for 35c3
Project Owner Contributor

Penghicorn

davedarkodavedarko

5.4k
74
24
74
whowhow. whowhow. - formally known as purple rider
Project Owner Contributor

K.I.T.T. - KNIGHT RIDER badge/brooch

davedarkodavedarko

9.6k
410
18
102
30ml jam jars turned into beautiful LED displays - nixietube like looking without the higher voltage fuzz
Project Owner Contributor

Fixietube - Fake Nixie Tube displays

davedarkodavedarko

  • The 2017 Hackaday Prize
23k
192
16
149
fully portable ESP12 project with battery charging and power muxing
Project Owner Contributor

LAMEBOY - another ESP12 handheld

davedarkodavedarko

745
22
5
31
We're going for it now, 612 LEDs, 51 of them controlled by a single IS31FL3733 chip
Project Owner Contributor

LEDodecahedron

davedarkodavedarko

View all 114 projects

Projects I Contribute To

  • The 2017 Hackaday Prize
415k
1.9k
155
1.4k
Pi Zero-based open-source mobile phone (that you can assemble for 50$ in parts)
Project Owner Contributor

ZeroPhone - a Raspberry Pi smartphone

AryaArya

  • Tindie
6.9k
424
7
253
A place for Tindie sellers and the community to meet and stretch their legs
Project Owner Contributor

Tindie Dog Park

TindieTindie

12.6k
504
88
140
Hackaday Europe SuperCon // Belgrade, Serbia // April 9 2016
Project Owner Contributor

Hackaday | Belgrade

Aleksandar BradicAleksandar Bradic

5.1k
216
44
132
[ an open-access peer-reviewed journal ]
Project Owner Contributor

Hackaday Journal of What You Don't Know

Aleksandar BradicAleksandar Bradic

5.8k
402
44
94
Official hackaday.io API project
Project Owner Contributor

Hackaday API

Ivan LazarevicIvan Lazarevic

21.3k
144
80
91
A contest to create awesome, useful square inch boards. Entries are closed.
Project Owner Contributor

The Square Inch Project

alpha_ninjaalpha_ninja

View all 27 projects

My Lists

Simple Add-on badges

SAO / Simple Add-on badges

Curated by davedarko

39
2

My Pages

  • getting the pico usb host example compiled correctly

    12/01/2022 at 19:51 • 2 comments

    I couldn't find the picoprobe with openOCD until I flashed it with a pre compiled picoprobe.uf2 file instead of compiling it myself. If it works, it works - I guess.

    found the related issue where I got the working picoprobe.uf2 got from: https://github.com/raspberrypi/openocd/issues/71
    Basically pointing to this site where you can download the probe firmware:

    https://www.raspberrypi.com/documentation/microcontrollers/raspberry-pi-pico.html#debugging-using-another-raspberry-pi-pico


    So apparently there's a tinyusb bug that will break the usb hid example and throw something like this at you:

    assertion "ep->active" failed: file "~/Projects/pico/pico-sdk/lib/tinyusb/src/portable/raspberrypi/rp2040/hcd_rp2040.c", line 164, function: hw_trans_complete

    This has something to do with the debug mode and you need a flag to run cmake first before compiling:

    PICO_SDK_PATH=~/Projects/pico/pico-sdk cmake .. -DCMAKE_BUILD_TYPE=Release
    make -j8

    I have yet to find out what the difference between -j8 and -j4 means but hey, that up their worked.

    link that helped: https://github.com/raspberrypi/pico-sdk/issues/649

    video that helped: 

  • Building openOCD for picoprobe on M1 mac

    12/01/2022 at 12:35 • 0 comments

    Had some trouble compiling the openOCD version for the picoprobe on the M1 macbook. This is based on a thread on github and the official guides, plus some blog posts that basically copied from each other.  

    https://github.com/raspberrypi/openocd/issues/7 

    #install additional brew libraries
    brew install libtool automake texinfo wget gcc pkg-config libusb
    
    # some path magic so compilers know where to look for stuff 
    export PATH="$(brew --prefix)/opt/texinfo/bin:$PATH"
    
    # download openocd files with picoprobe branch
    git clone https://github.com/raspberrypi/openocd.git \
      --branch picoprobe --depth=1
    
    cd openocd
    ./bootstrap
    
    # this enables the picoprobe and deactivates other modules that fail to compile otherwise
    CAPSTONE_CFLAGS="-I$(brew --prefix)/include" \                      
      ./configure --prefix="$(brew --prefix)"  \
      --enable-picoprobe --disable-presto --disable-werror --disable-openjtag
    
    make -j4
    
    # this will probably overwrite your current installation
    # and will break openjtag
    make install
    
    # optionally remove the installation folder
    cd ~/git
    rm -rf openocd
    
    

  • burning firmware onto an ST-Link to burn firmware onto anything else

    06/07/2021 at 18:37 • 0 comments

    at least I'm trying to find that out. The clones from aliexpress are supposed to be only able to program st chips. But I want to use it to program some SAMD-21 chips. Never done that as well. So this is a link drop first. Figuring it out for MAC OS.

    install open-OCD via homebrew

    for unlocking the stm for new firmware go here

    https://hackaday.io/project/162597-st-link-clone-repurposing/log/156668-programming

    install new firmware called cmsis-dap

    https://mvdlande.wordpress.com/2015/10/05/cmsis-dap-on-a-cheap-st-link-v2-mini-adapter/

    get this file

    https://raw.githubusercontent.com/x893/CMSIS-DAP/master/Firmware/STM32/hex/CMSIS-DAP-STLINK21.hex

    install with this line

    openocd -f interface/stlink.cfg -f target/stm32f1x.cfg -c "init" -c "halt" \
    
        -c "flash write_image ./CMSIS-DAP-STLINK21.hex" -c "shutdown"


    doing this to flash arturos latest keyboard firmware, had to install arm gcc first. Brew doesn't work as it's not trusted. Downloading here helped.

    https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads

    to compile arturos fine firmware, you need to add the ARM stuff to your path, otherwise you compile and wonder why he wont find "gcc-arm-none-eabi" again. 

    export PATH="$PATH:/Applications/ARM/bin/"

View all 74 pages

Things I've Built

Tampermonkey scripts for hackaday.io

Some annoying things like the feedback button and design stuff. https://gist.github.com/davedarko/f6ef86c89c4d1df4cd36

Batman LED caps

Put a cap on a strawhat LED and you will get a small batman projector.

IKEA Expedit LED plug

Throw in some WS2812 LEDs and snap it on the crossings.

PiMac

3D printed case for the raspberry pi in a not so common but very known shape. Inspired by http://hackaday.com/2014/01/16/hackintosh-mac-pro-replica-using-a-trash-can/

Fubarino Contest: Game Boy Printer

A little library for the gameboy printer for an easy intergation into arduino sketches. Cross the serial streams (watchout Egon) on startup, it will print the had url. http://hackaday.com/2013/12/17/fubarino-contest-game-boy-printer/

Projects I Like & Follow

3.4k
56
7
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Step-by-Step guide on how Lithium Battery charger circuit works and full assitance for DIY protect charger through USB port.
Project Owner Contributor

DIY Protected Lithium Battery Charger (TP4056)

DIY GUY ChrisDIY GUY Chris

  • Supplyframe DesignLab: 2023 Hackada…
1.7k
7
2
12
Each line of the breadboard has an LED that glows based on the voltage on that line
Project Owner Contributor

Lightup breadboard

rasmusviil0rasmusviil0

1.3k
8
3
11
Is it a Ghost Sensor? That depends on if there are ghosts. It is definitely an environmental sensor and thermal camera in a 3d-printed case.
Project Owner Contributor

Ghost Sensor

YourAverageMakerYourAverageMaker

827
14
0
11
Fluffbug, but with a Pi Cow
Project Owner Contributor

Moo Bug

deʃhipudeʃhipu

682
4
0
2
A hacked OBEGRÄNSAD LED wall lamp, driven by an ESP32
Project Owner Contributor

IKEA OBEGRÄNSAD LED wall lamp + ESP32

Ates GoralAtes Goral

561
70
0
7
Fully magnetic equivalent of a kinetic sand art table
Project Owner Contributor

Magnetic Kinetic Art Display

Moritz v. SiversMoritz v. Sivers

517
8
0
9
Fluffbug but smaller
Project Owner Contributor

Wee Bug

deʃhipudeʃhipu

443
14
5
10
Minimal quadrupedal robot with gripper
Project Owner Contributor

Miniature quadrupedal robot

Kiyotaka AkasakaKiyotaka Akasaka

388
0
0
2
Minimal ATtiny85-based watch with OLED Display
Project Owner Contributor

Dumbwatch V2

MasoMaso

340
2
0
4
An arm for Astro, a snack dispenser and a cool can dispenser--3 ways to make Astro more useful.
Project Owner Contributor

Astro Robot Accessories

Mike RigsbyMike Rigsby

314
10
2
15
A 4ft tall metal frame spinning at high speeds to draw a Christmas tree(and anything else) in the air using Persistence of Vision
Project Owner Contributor

Spinning Holographic Christmas Tree of Death

Sean HodginsSean Hodgins

256
8
1
5
Raspbery Pi PICO and CircuitPython
Project Owner Contributor

PICOmputer&Armachat TOUCH

bobriciusbobricius

198
2
0
2
A custom Feather with SAM L21 microcontroller, paired with wings that let us interactively explore its integrated op amp peripheral.
Project Owner Contributor

Feather Op Amp Lab

joey castillojoey castillo

159
3
0
4
Basically an all in one Arduboy + Serial Flash with IO broken out onto an edge 0.1" double row header
Project Owner Contributor

ArduPak (formerly Arducart)

sjm4306sjm4306

145
2
4
4
Handheld RISC-V Mini Game Console with OLED Display
Project Owner Contributor

CH32V003 Mini Game Console

Stefan WagnerStefan Wagner

138
3
4
5
An attempt at a DIY watch focused on low-power, high performance operation
Project Owner Contributor

Time Machine Mk. 8

Eric MinEric Min

114
3
2
4
PineTree Light made with Engineering Student at Sammamish High School
Project Owner Contributor

PineTree - Sammamish High School

Stanislas BertrandStanislas Bertrand

91
7
0
1
Initially I didn't want to post this project - there are so many implementations already. But... Why not, they are always beautiful :)
Project Owner Contributor

Yet another Nixie Clock

SebastianSebastian

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Morning.Star wrote 12/14/2018 at 08:27 • point

Hey Dave ;-) Thanks for #Five Cubed dude, much appreciated.

Man was that tough not copying your #Skeleton Attiny85 Handheld , I had to breakout the old copper tape. ;-D

  Are you sure? yes | no

davedarko wrote 12/14/2018 at 10:32 • point

it's weird, some people on twitter came with analog heroes who used the technic, others said I'm copying someone else who wasn't the first one to do it :D I feel weird that people applaud me while attiny85 + OLED handhelds aren't new... just do what you want to do, don't get distracted by the noise like I was the last 3-4 days :D

Good luck with the contest and may the force be with you. It's almost Christmas, so I'm in a Star Wars mood.

  Are you sure? yes | no

Craig Hissett wrote 11/18/2018 at 07:51 • point

Thanks for liking my #Modular Multi fx Stomp Box project mate :)

  Are you sure? yes | no

Kris Winer wrote 10/18/2018 at 21:04 • point

Thanks for liking my Compact, $25 spectrometer project!

  Are you sure? yes | no

Dr. Cockroach wrote 10/08/2018 at 11:37 • point

Good morning Dave and thanks for the follow and like for #Light Logic  :-)

  Are you sure? yes | no

Bharbour wrote 09/17/2018 at 23:31 • point

Thanks for Liking my Hex Display project  https://hackaday.io/project/161282-homebuilt-led-displays. Thanks for the heads up on other work in this, I didn't realize other people had jumped into this too!

  Are you sure? yes | no

davedarko wrote 09/18/2018 at 06:50 • point

There's something about these LED displays people love :) I hope you don't feel discouraged by it, that wasn't my intention!

  Are you sure? yes | no

Bharbour wrote 09/18/2018 at 13:09 • point

They are appealing. I'm not discouraged at all by other people pursuing it. Thanks.

  Are you sure? yes | no

Josh Starnes wrote 08/07/2018 at 19:18 • point

Thankyou for the follow, be sure to skull anything you like :)
https://hackaday.io/project/159520-p-cell-urea-electrical-power-harvesting-device

  Are you sure? yes | no

Josh Starnes wrote 08/07/2018 at 19:12 • point

Thankyou for the follow, be sure to skull anything you like :)
https://hackaday.io/project/159232-phytoplankton-power-hybrid-microbial-fuel-cell

  Are you sure? yes | no

Josh Starnes wrote 08/07/2018 at 18:51 • point

Thankyou for the follow, be sure to skull anything you like :)

  Are you sure? yes | no

david.reid wrote 04/20/2018 at 12:57 • point

Thanks Dave for the 'like'for my Cool replacement for nixie tubes. I think your jamjar nixie's are cool too.

Cheers from The Netherlands

  Are you sure? yes | no

Franck GALLIAT wrote 04/13/2018 at 07:55 • point

thanks for liking my #Xts-uBASIC POCKET v3 project, log updates will come soon (I hope !)

  Are you sure? yes | no

Craig Hissett wrote 04/12/2018 at 09:43 • point

Thanks for following #Digibone mate!

  Are you sure? yes | no

davedarko wrote 04/12/2018 at 10:23 • point

I thought I did already, must be the unfollow bug that goes around here - good luck! :)

  Are you sure? yes | no

Craig Hissett wrote 04/12/2018 at 10:29 • point

:-) Thanks mate!

  Are you sure? yes | no

Eric Hertz wrote 03/31/2018 at 08:20 • point

Hey Davey-D! Thanks for the like, and good luck with that hurdy-gurdy!

  Are you sure? yes | no

davedarko wrote 03/31/2018 at 11:40 • point

thanks mate :)

  Are you sure? yes | no

Dennis wrote 03/14/2018 at 01:42 • point

Thanks for following my project Wheeled Walker Hybrid Bot!

  Are you sure? yes | no

David H Haffner Sr wrote 03/12/2018 at 21:23 • point

Thanks for the follow + like my man :)

  Are you sure? yes | no

Kris Winer wrote 03/03/2018 at 07:22 • point

Thanks for liking my ESP module project! Maybe you can use one of these in one of your upcoming projects...

  Are you sure? yes | no

Chris Slothouber wrote 01/11/2018 at 22:16 • point

Hello from Canada. Thank you for liking my first Hackaday.io project. :)

  Are you sure? yes | no

Dusan Petrovic wrote 10/16/2017 at 16:25 • point

Hello and thanks for the follow :-)

  Are you sure? yes | no

Dr. Cockroach wrote 10/11/2017 at 08:36 • point

Good morning Dave and thanks for another follow ( profile ) :-)

  Are you sure? yes | no

davedarko wrote 10/11/2017 at 12:28 • point

Sure :) Hope your gofundme goes well!

  Are you sure? yes | no

Jacob wrote 10/09/2017 at 01:20 • point

Thanks for the like #Roadrunner (the Arduino-Tiva) !

  Are you sure? yes | no

Kris Winer wrote 07/30/2017 at 20:24 • point

Thanks for liking my SensorTile project!

  Are you sure? yes | no

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