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paper_bits:pb704_raspi-bit [2017/11/23 14:48]
admin [change the PWM audio pins]
paper_bits:pb704_raspi-bit [2020/06/11 22:13] (current)
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-===== Raspberry ​Bit ===== +===== Raspi Bit ===== 
-Raspberry Pi Zero board.+ 
 +Raspberry Pi Zero board for the [[paper_bits:​paper_bits_main|Paper-Bits]] to rule all GPIOs in Pure Data.\\ 
 +{{:​paper_bits:​pb205_raspi_bit_155332.jpg?​600|}}\\ 
  
 ---- ----
Line 7: Line 10:
 <a href="​https://​cdn-learn.adafruit.com/​assets/​assets/​000/​028/​850/​original/​raspberry_pi_audio.png?​1449170282">​ <a href="​https://​cdn-learn.adafruit.com/​assets/​assets/​000/​028/​850/​original/​raspberry_pi_audio.png?​1449170282">​
 <img src="​https://​cdn-learn.adafruit.com/​assets/​assets/​000/​028/​850/​original/​raspberry_pi_audio.png?​1449170282"></​a>​ <img src="​https://​cdn-learn.adafruit.com/​assets/​assets/​000/​028/​850/​original/​raspberry_pi_audio.png?​1449170282"></​a>​
 +</​html>​
 +
 +<​html>​
 +<a href="​http://​www.softwaresamurai.org/​wp-content/​uploads/​2017/​10/​rpiZ-GPIO.png">​
 +<img src="​http://​www.softwaresamurai.org/​wp-content/​uploads/​2017/​10/​rpiZ-GPIO.png"></​a>​
 +</​html>​
 +
 +<​html>​
 +<a href="​https://​people.ece.cornell.edu/​land/​courses/​ece4760/​FinalProjects/​s2003/​gsh7/​ECE476/​DAC0808.gif">​
 +<img src="​https://​people.ece.cornell.edu/​land/​courses/​ece4760/​FinalProjects/​s2003/​gsh7/​ECE476/​DAC0808.gif"></​a>​
 +</​html>​
 +
 +<​html>​
 +<a http://​www.circuitstoday.com/​wp-content/​uploads/​2011/​06/​MC-1408-Digital-to-Analog-Converter.jpg">​
 +<img src="​http://​www.circuitstoday.com/​wp-content/​uploads/​2011/​06/​MC-1408-Digital-to-Analog-Converter.jpg"></​a>​
 </​html>​ </​html>​
  
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 Or like on [[https://​othermod.com/​raspberry-pi-zero-audio-circuit/​]]\\ Or like on [[https://​othermod.com/​raspberry-pi-zero-audio-circuit/​]]\\
 Open: Open:
-   $ sudo nano config.txt+   $ sudo nano /boot/config.txt
 Add: Add:
    ​dtoverlay=pwm-2chan,​pin=18,​func=2,​pin2=13,​func2=4    ​dtoverlay=pwm-2chan,​pin=18,​func=2,​pin2=13,​func2=4
  
 ---- ----
 +==== DAC ====
 +DAC0808: [[http://​www.ti.com/​lit/​ds/​symlink/​dac0808.pdf]]\\
 +MC1408: [[http://​pdf.datasheetcatalog.com/​datasheet/​philips/​MC1408-8_3.pdf]]\\
 +Example: [[https://​people.ece.cornell.edu/​land/​courses/​ece4760/​FinalProjects/​s2003/​gsh7/​ECE476/​archive.htm]]\\
  
 +----
 +==== Negative Voltage Source ====
 +[[https://​www.allaboutcircuits.com/​projects/​build-your-own-negative-voltage-generator/​]]\\
 +[[http://​www.stephenhobley.com/​blog/​2011/​03/​28/​creating-a-negative-voltage-from-a-positive-one/​]]\\
 +
 +----
 +==== Pure Data ====
 +**PD WiringPi:​**\\
 +[[http://​dernulleffekt.de/​doku.php?​id=puredata:​gpio]]\\
 +
 +----
 ==== Links ==== ==== Links ====
 [[https://​learn.adafruit.com/​introducing-the-raspberry-pi-zero/​audio-outputs]]\\ [[https://​learn.adafruit.com/​introducing-the-raspberry-pi-zero/​audio-outputs]]\\