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start [2019/09/02 15:11]
admin [A simple Hat]
start [2022/07/04 08:00] (current)
admin [der nulleffekt]
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 ===== der nulleffekt ===== ===== der nulleffekt =====
  
-{{ :hardsyncosc_2395_stripe.jpg |}} +[[http://dernulleffekt.de/doku.php?id=start|{{ :hardsyncosc_2395_stripe.jpg |}}]]\\ 
-This is the Open Hard- and Software Wiki by [[http://wolfgang-spahn.de/|Wolfgang Spahn]] - a Berlin based light and sound artist.\\ +This is the Open Hard- and Software Wiki by Berlin based light and sound artist [[http://wolfgang-spahn.de/|Wolfgang Spahn]].\\ 
-If not mentioned otherwise, all boards, codes and designs are made by Wolfgang Spahn mainly for his art work like his [[http://wolfgang-spahn.de/doku.php/installation:main|installations]] and [[http://wolfgang-spahn.de/doku.php/performance:main|performances]].\\+If not mentioned otherwise, all boards, codes and designs are made by Wolfgang Spahn. They are mainly developed for his art [[http://wolfgang-spahn.de/doku.php/installation:main|installations]][[http://wolfgang-spahn.de/doku.php/performance:main|performances]] and his [[http://workshop.dernulleffekt.de/doku.php|workshops]].\\
  
 Except where otherwise noted, content is licensed under the following license: [[https://creativecommons.org/licenses/by-nc-sa/4.0/|CC Attribution-Noncommercial-Share Alike 4.0 International]].\\ Except where otherwise noted, content is licensed under the following license: [[https://creativecommons.org/licenses/by-nc-sa/4.0/|CC Attribution-Noncommercial-Share Alike 4.0 International]].\\
  
-<hidden **[[https://paperpcb.dernulleffekt.de/|PAPER-PCB]]**>\\+<hidden **PAPER-PCB**> 
 +[[https://paperpcb.dernulleffekt.de/|PAPER-PCB]]\\ 
 +- [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Analog Computer]]\\ 
 +- [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pop_neuron_main|Pop Neuron]]\\ 
 +- [[https://paperpcb.dernulleffekt.de/doku.php?id=arduino_clones:arduino_clones_main|Paper-Duino]]\\
 - [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:paper_synth_main|Paper Synthesizer]]\\ - [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_synth:paper_synth_main|Paper Synthesizer]]\\
 - [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:paper_bits_main|Paper Bits]]\\ - [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:paper_bits_main|Paper Bits]]\\
-- [[https://paperpcb.dernulleffekt.de/doku.php?id=arduino_clones:arduino_clones_main|Paper-Duino]]\\ +- [[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspberry_boards_main|Raspberry Pi Hats]]\\
-- [[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspberry_boards_main|Raspberry Boards]]\\ +
-- [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pop_neuron_main|Pop Neuron]]\\+
 - [[https://paperpcb.dernulleffekt.de/doku.php?id=vga_synthesizer:vga_main|VGA Synthesizer]]\\ - [[https://paperpcb.dernulleffekt.de/doku.php?id=vga_synthesizer:vga_main|VGA Synthesizer]]\\
 - [[https://paperpcb.dernulleffekt.de/doku.php?id=sound_boards:sound_boards_main|Sound Boards]]\\ - [[https://paperpcb.dernulleffekt.de/doku.php?id=sound_boards:sound_boards_main|Sound Boards]]\\
-- [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Confetti - An Analog Computer]]\\ 
 </hidden> </hidden>
-<hidden **[[https://workshop.dernulleffekt.de/|WORKSHOP]]**>\\ + 
-[[https://workshop.dernulleffekt.de/|Workshop]]\\ +<hidden **RASPBERRY PI & LINUX**> 
-</hidden> +[[raspi_and_linux|RASPBERRY PI & LINUX]]\\ 
-<hidden **[[http://embedded-artist.net/|EMBEDDED-ARTIST]]**>\\ +- [[puredata:main|Pure Data on Raspberry Pi]]\\
-- [[http://embedded-artist.net/doku.php?id=embedded_art_system|Embedded Art System]]\\ +
-</hidden> +
-<hidden **[[miscellaneous|MISCELLANEOUS]]**>\\+
 - [[raspberry:raspberry_main|Raspberry Pi Projects]]\\ - [[raspberry:raspberry_main|Raspberry Pi Projects]]\\
 - [[linux:linux_main|Linux Workarounds]]\\ - [[linux:linux_main|Linux Workarounds]]\\
-- [[frames:mainframes|Frames Bottom Plates]]\\ +- [[http://embedded-artist.net/doku.php?id=embedded_art_system|Embedded Art System]]\\ 
-- [[cnc:cnc_main|Computerized Numerical Control CNC]]\\+</hidden> 
 + 
 + 
 +<hidden **ARDUINO CO**> 
 +- [[raspberrypipico:raspberrypipico|Raspberry Pi Pico]]\\ 
 +- [[bootloader:bootloader_main|Burning Bootloader]]\\ 
 +[[arduino:arduino|ARDUINO Workarounds]]\\ 
 +- [[samd21:samd21m0_mini|SAMD21 M0-Mini]]\\ 
 +- [[seeeduino:seeeduino_xiao|Seeeduino XIAO]]\\
 - [[esp32:esp32_main|Espressif ESP32]]\\ - [[esp32:esp32_main|Espressif ESP32]]\\
 - [[stm32duino:32stm32_main|STM32duino]]\\ - [[stm32duino:32stm32_main|STM32duino]]\\
 +- [[https://paperpcb.dernulleffekt.de/doku.php?id=arduino_clones:arduino_clones_main|Paper-Duinos]]\\
 +- [[https://paperpcb.dernulleffekt.de/doku.php?id=arduino_boards:arduino_boards_main|Arduino Boards/Extensions]]\\
 +</hidden>
 +
 +<hidden **ART COOPERATION**>
 +[[art_cooperation|ART COOPERATION]]\\
 +- [[spahn_feistkorn:spahn_feistkorn|Spahn Feistkorn]]\\
 +-  [[ufo:ufo|U.F.O. Yashas Shetty & Wolfgang Spahn]]\\
 +- [[http://maailmankaikkeus.dernulleffekt.de/|Maailmankaikkeus]] 
 +D.Eggermann, A.Pussinen and W.Spahn, 2018\\ 
 +- [[symbolic_grounding:symbolic_grounding|Symbolic Grounding]] 
 +Ch.Faubel and W.Spahn, 2018\\
 +- [[beats_per_machine|Beats per Machine]] 
 +collective work lead by W.Spahn, 2017\\
 +- [[http://embedded-artist.net/doku.php|Embedded Artist]] 
 +M.Steiner and W.Spahn, 2014-16\\
 +- [[http://embeddedartist.dernulleffekt.de/doku.php?id=installation|Monitored Artwork]] M.Steiner and W.Spahn, 2015\\
 +- [[cnc:froehliche_wissenschaft|Die Fröhliche Wissenschaft]]\\
 +T.Henninger and A.Anklam in cooperation with W.Spahn, 2014\\
 +- [[http://old.wolfgang-spahn.de/Projektion_01_Index.html|Liquid State Machine]] M.Howse and W.Spahn, 2011-12\\
 +- [[http://molecule.dernulleffekt.de/|Molecule]] 
 +J.Hoffman and W.Spahn, 2010\\
 +- [[http://old.wolfgang-spahn.de/Installation_08_Index.html|Spiel-Tisch]] T.Gerwin and W.Spahn 2010\\
 +- [[http://old.wolfgang-spahn.de/Installation_06_Index.html|augen-auf-schlag]] T.Gerwin and W.Spahn 2008\\
 +</hidden>
 +
 +<hidden **WORKSHOP**>
 +- [[https://workshop.dernulleffekt.de/|Workshops & Seminars]]\\
 +</hidden>
 +
 +<hidden **MISCELLANEOUS**>
 +[[miscellaneous|MISCELLANEOUS]]\\
 +- [[frames:mainframes|Frames & Bottom Plates]]\\
 +- [[cnc:cnc_main|Computerized Numerical Control - CNC]]\\
 - [[kav:kav|Kite Aerial Video - KAV]]\\ - [[kav:kav|Kite Aerial Video - KAV]]\\
 - [[i2c_over_vga|I2C over VGA]]\\ - [[i2c_over_vga|I2C over VGA]]\\
-- [[beats_per_machine|Beats per Machine]]\\ 
-- [[symbolic_grounding:symbolic_grounding|Symbolic Grounding]]\\ 
 - [[paper_pcb_shenzhen_ready:main|Paper PCB Shenzhen Ready]]\\ - [[paper_pcb_shenzhen_ready:main|Paper PCB Shenzhen Ready]]\\
 - [[8bit_&_chiptune|8 Bit & Chiptune]]\\ - [[8bit_&_chiptune|8 Bit & Chiptune]]\\
 +- [[lenovo_to_round-jack_adapter|Lenovo Rectangular Power Adapter to 5.5mm Round Jack]]\\
 +- [[vocoder|Vocoder]]\\
 +- [[talkbox|Talkbox]]\\
 +- [[synthetic_speech|Synthetic Speech]]\\
 +- [[analogcomputation:01_chuascircuit|Chua's Circuit]]\\
 </hidden> </hidden>
 \\ \\
 +[[camp:harsh_art_cam|Border Pixel]]\\
 +
 +----
 +==== Pi Zero always On-The-Go ====
 +07. June 2021\\
 +{{ :raspberry:usb-osg_on_zero_02.jpg?400 |}}
 +[[raspberry:pi_zero_usb-otg|Pi Zero always On-The-Go]], a USB-OTG Hack\\
 +
 +----
 +==== Paspberry Pi Pico - Programmable I/Os ====
 +10. May 2021\\
 +A manual for the
 +[[raspberrypipico:pico_pio|Programmable I/O]]'s of the Paspberry Pi Pico\\
 +
 +----
 +==== Serial Wire Debug (SWD) and Raspberry PI ====
 +30.January 2021\\
 +[[bootloader:openocd|{{ :bootloader:swd-raspi_programmer_seeeduinoxiao.jpg?400 |}}]]\\
 +A workaround for [[bootloader:openocd|OpenOCD & Raspberry Pi]].\\
 +
 +----
 +
 +==== USB Soundcard Oscilloscope ====
 +16.November 2020\\
 +[[linux:oscilloscope|{{ :micoscope_210751.jpg?250 |}}]]\\
 +A simple USB sound card hack for an [[linux:oscilloscope|Linux Oscilloscope]].\\
 +
 +----
 +==== Voltage Controlled Oscillator ====
 +6.November 2020\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=sound_boards:vc_oscillator|voltage controlled oscillator]]\\
 +{{ :vc_oscillator_214607.jpg?250 |}}\\
 +A basic Voltage Controlled Oscillator for learning, experiments and development. It's designed to plug it directly in a breadboard.\\
 +
 +----
 +==== Handmade Electronic Music ====
 +30.June 2020\\
 +[[https://www.handmadeelectronicmusic.com/index.htm|Handmade Electronic Music - The Art of Hardware Hacking]]\\
 +by Nicolas Collins, [[https://www.routledge.com/Handmade-Electronic-Music-The-Art-of-Hardware-Hacking-3rd-Edition/Collins/p/book/9780367210106|Routledge]] 2020\\
 +
 +includes an article of my [[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:confetti501_confetti_neuron| Confetti Neuron]]\\ 
 +
 +[[https://www.routledge.com/Handmade-Electronic-Music-The-Art-of-Hardware-Hacking-3rd-Edition/Collins/p/book/9780367210106|{{ :handmade_electronic_music_cover.jpg?250 |}}]]
 +//copyright of the cover by [[https://www.routledge.com/Handmade-Electronic-Music-The-Art-of-Hardware-Hacking-3rd-Edition/Collins/p/book/9780367210106|routledge]], 2020//\\
 +
 +----
 +==== Raspberry Pi HQ Camera Protection ====
 +12.May 2020\\
 +[[frames:raspberry_pi_cam2_frame|Frame for the Raspberry Pi HQ Camera]]\\
 +[[frames:raspberry_pi_cam2_frame|{{ :frames:20200512_174344_b.jpg?400 |}}]]\\
 +A 3D printed frame for the latest HQ Raspi Cam.\\
 +
 +----
 +==== Analog Computation #01 - Chua's Circuit ====
 +09.May 2020\\
 +[[analogcomputation:01_chuascircuit|Analog Computation #01 - Chua's Circuit]]\\
 +[[analogcomputation:01_chuascircuit|{{ :analogcomputation:chua_s_circuit_134511.jpg?400 |}}]]\\
 +This is the first lesson about analog computation, it's about the implementation of a Chua's Circuit in the analog computer Confetti to gain a chaotic oscillation.\\
 +
 +----
 +==== Arduino Bootloader ====
 +23.Mar 2020\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=avr_bootloader:bootloader|Burning the Bootloader]]\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=avr_bootloader:bootloader|{{ :paper-avrisp_mkii_programming_board_raw.jpg?400 |}}]]\\
 +An update on burning an Arduino bootloader with all kind of AVR programming boards in the Arduino IDE and in command line.\\
 +
 +----
 +==== Raspi-Sound-Hat ====
 +04.Mar 2020\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspi-sound-hat|Raspi-Sound-Hat]]\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspi-sound-hat|{{ :raspi-sound_hat_recording_playback-440hz.jpg?400 |}}]]\\
 +A Raspberry Pi Audio Hat with two Line In and two Line Out.\\
 +
 +----
 +
 +==== Raspi-PD Control Hat ====
 +22.Feb 2020\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspbi-pd_control_hat|Raspi-PD Control Hat]]
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspbi-pd_control_hat|{{ :raspi-pd_hat.jpg?400 |}}]]\\
 +A Raspberry Pi Hat for analog and digital inputs in Pure Data.\\
 +
 +----
 +
 +==== Pure Data on the Raspberry Pi ====
 +06.Feb 2020\\
 +Here are some workarounds for Pure Data, GPIO, Arduino  and some sound cards on the Raspberry Pi 4: [[puredata:main|Pure Data on Raspberry Pi]]\\
 +[[puredata:main|{{ :puredata:pd_wiringpi_mcp3008_gpio-help_jan2020.png?400 |}}]]\\
 +
 +----
 +==== Experimental VGA Processor ====
 +11. December 2019\\
 +A new new all signal mixer (incl. VGA): the
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=vga_synthesizer:experimental_vga_processor|Experimental VGA Processor]]\\
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=vga_synthesizer:experimental_vga_processor|{{ :experimental_vga_processor.jpg?400 |}}]]\\
 +For mixing and experimenting with analog video signals.
 +
 +----
 +==== Lenovo Rectangular Power Adapter ====
 +2. October 2019\\
 +[[lenovo_to_round-jack_adapter|Lenovo Rectangular Power Adapter to 5.5mm Round Jack]]
 +[[lenovo_to_round-jack_adapter|{{ :solder_station_adapter.jpg?400 |}}]]\\
 +To use a Lenovo power supply for a T12-942 solder station.\\
  
 ---- ----
Line 44: Line 189:
 [[https://paperpcb.dernulleffekt.de/doku.php?id=sound_boards:electric_intonarumori|Electric Intonarumori]] - a noise-synth with beautiful feedback.\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=sound_boards:electric_intonarumori|Electric Intonarumori]] - a noise-synth with beautiful feedback.\\
  
-{{ :electric_intonarumori.jpg?400 |}}\\+[[https://paperpcb.dernulleffekt.de/doku.php?id=sound_boards:electric_intonarumori|{{ :electric_intonarumori.jpg?400 |}}]]\\
  
 ---- ----
Line 62: Line 207:
 I updated the [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb202_miditocv| I updated the [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb202_miditocv|
 Paper Bit 202 Midi to CV]] board. It has now 4 CV outputs and gives out the clock signal as a trigger sinal.\\ Paper Bit 202 Midi to CV]] board. It has now 4 CV outputs and gives out the clock signal as a trigger sinal.\\
-{{ :pb202_midi_to_cv_015617.jpg?400 |}}\\+[[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb202_miditocv|{{ :pb202_midi_to_cv_015617.jpg?400 |}}]]\\
  
 ---- ----
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 23.Jan. 2019\\ 23.Jan. 2019\\
 Chua's Oscillator for Paper Bits! [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb705_vccc|PB705 VCCC Voltage Controlled Chua Circuit]]\\ Chua's Oscillator for Paper Bits! [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb705_vccc|PB705 VCCC Voltage Controlled Chua Circuit]]\\
-{{ :pb705_vccc_schematic.jpg?400 |}}\\+[[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb705_vccc|{{ :pb705_vccc_schematic.jpg?400 |}}]]\\
  
 ---- ----
Line 74: Line 219:
 10.Dec 2018\\ 10.Dec 2018\\
 The all purpose signal to VGA mixer: [[https://paperpcb.dernulleffekt.de/doku.php?id=vga_synthesizer:vga_sound_blender|VGA & Sound Blender]]\\ The all purpose signal to VGA mixer: [[https://paperpcb.dernulleffekt.de/doku.php?id=vga_synthesizer:vga_sound_blender|VGA & Sound Blender]]\\
-{{ :video_sound_blender_08-47-08.jpg?400 |}}\\+[[https://paperpcb.dernulleffekt.de/doku.php?id=vga_synthesizer:vga_sound_blender|{{ :video_sound_blender_08-47-08.jpg?400 |}}]]\\
  
 ---- ----
Line 80: Line 225:
 19. Oct 2018\\ 19. Oct 2018\\
 A RS232 Controller for two Waveplayer8: [[https://paperpcb.dernulleffekt.de/doku.php?id=arduino_boards:rs232_controller|RS232 Controller]]\\ A RS232 Controller for two Waveplayer8: [[https://paperpcb.dernulleffekt.de/doku.php?id=arduino_boards:rs232_controller|RS232 Controller]]\\
-{{ :rs2323_control_front.jpg?400 |}}\\+[[https://paperpcb.dernulleffekt.de/doku.php?id=arduino_boards:rs232_controller|{{ :rs2323_control_front.jpg?400 |}}]]\\
  
 ---- ----
 ==== PB808 Kick Drum ==== ==== PB808 Kick Drum ====
 09. Oct 2018\\ 09. Oct 2018\\
-The 808 Kick Drum for the Paper Bits is online! +The[[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb808_kickdrum|PB808 Kick Drum]] for the Paper Bits is online! 
-{{ :pb808_kick_drum_schematic_03.jpg?400 |}}\\ +[[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb808_kickdrum|{{ :pb808_kick_drum_schematic_03.jpg?400 |}}]]\\
-[[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb808_kickdrum|PB808 Kick Drum]]\\+
  
 ---- ----
 ==== Pop Neuron 2 ==== ==== Pop Neuron 2 ====
 1.Sept 2018\\ 1.Sept 2018\\
-New version the Pop Neurons:\\+<del>New version the Pop Neurons:</del>\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pn012_excitatory_pop_neuron2#pn012_excitatory_pop_neuron_2|Exitatory Pop Neuron 2]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pn012_excitatory_pop_neuron2#pn012_excitatory_pop_neuron_2|Exitatory Pop Neuron 2]]\\
 [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pn013_inhibitory_pop_neuron2#pn013_inhibitory_pop_neuron|Inhibitory Pop Neuron 2]]\\ [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pn013_inhibitory_pop_neuron2#pn013_inhibitory_pop_neuron|Inhibitory Pop Neuron 2]]\\
Line 98: Line 242:
  
 ---- ----
-==== Confetti - An Analog Computer ==== 
-15.Jan 2018\\ 
-[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Confetti]] is a modular analog computing system.\\ 
-{{ :confetti708_inverting_summer_osc_200845.jpg?400 |}}\\ 
  
----- 
  
 ==== Pop Neuron ==== ==== Pop Neuron ====
Line 109: Line 248:
 the Paper PCBs: [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pop_neuron_main|Pop Neuron]]\\ the Paper PCBs: [[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pop_neuron_main|Pop Neuron]]\\
 the exhibition: [[https://dernulleffekt.de/doku.php?id=symbolic_grounding:symbolic_grounding|Symbolic Grounding]]\\ the exhibition: [[https://dernulleffekt.de/doku.php?id=symbolic_grounding:symbolic_grounding|Symbolic Grounding]]\\
-{{ :pop_neuron_00.06.46b.jpg?400 |}}\\+[[https://paperpcb.dernulleffekt.de/doku.php?id=pop_neuron:pop_neuron_main|{{ :pop_neuron_00.06.46b.jpg?400 |}}]]\\ 
 + 
 +---- 
 +==== Confetti - An Analog Computer ==== 
 +15.Sep 2017\\ 
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|Confetti]] is a modular analog computing system.\\ 
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=analog_computer:analog_computer_main|{{ :confetti708_inverting_summer_osc_200845.jpg?400 |}}]]\\
  
 ---- ----
 ==== MIDI Bit ==== ==== MIDI Bit ====
 12.Sept 2017\\ 12.Sept 2017\\
-Keyboard-compatiblility for the Paper Bit:\\ +Keyboard-compatiblility for the Paper Bit: the [[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb702_midi_synth|PB702 MIDI Synthesizer]].\\ 
-the **PB702 MIDI Synthesizer**.\\ +[[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb702_midi_synth|{{ :pb702_midi_synth_22.jpg?400 |}}]]\\
-{{ :pb702_midi_synth_22.jpg?400 |}}\\ +
-[[https://paperpcb.dernulleffekt.de/doku.php?id=paper_bits:pb702_midi_synth]]\\+
  
 ---- ----
 ==== A simple Hat ==== ==== A simple Hat ====
-12.Sept 2017+12.Sept 2017\\ 
 +[[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspberry_basic_hat|Raspberry Basic Hat]]\\
 That simple Hat for an Raspberry Pi helps if one just needs some buttons and LEDs.\\ That simple Hat for an Raspberry Pi helps if one just needs some buttons and LEDs.\\
-{{ :raspberry_basic_hat.jpg?400 |}}\\ +[[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspberry_basic_hat|{{ :raspberry_basic_hat.jpg?400 |}}]]\\
-[[https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspberry_basic_hat]]\\+
  
----- 
  
 +----
 **[[archive|<< Older Posts]]**\\ **[[archive|<< Older Posts]]**\\
  
 ---- ----
 +==== Credits & Contact ====
 **[[credits|Credits]]**\\ **[[credits|Credits]]**\\
 **[[contact|Contact]]**\\ **[[contact|Contact]]**\\
  
 ---- ----
-If not other mentioned all boards are designed and developed by [[https://wolfgang-spahn.de/doku.php|Wolfgang Spahn]].\\+==== License ==== 
 +If not other mentioned all software, boards, web-sides and manuals are written, designed and developed by [[https://wolfgang-spahn.de/doku.php|Wolfgang Spahn]] 2008-21.\\ 
 + 
 +Except where otherwise noted, content is licensed under the following license: [[https://creativecommons.org/licenses/by-nc-sa/4.0/|CC Attribution-Noncommercial-Share Alike 4.0 International]].\\
  
 <html><div align=left> <html><div align=left>
 <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a>  <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a> 
 </div></html> </div></html>
-Except where otherwise noted, content is licensed under the following license: [[https://creativecommons.org/licenses/by-nc-sa/4.0/|CC Attribution-Noncommercial-Share Alike 4.0 International]].\\ 
  
 ---- ----