Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | |||
|
paper_bits:pb204_raspi-bit [2020/02/14 16:26] admin removed |
— (current) | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | ===== Raspi Bit ===== | ||
| - | A 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|}}\\ | ||
| - | |||
| - | |||
| - | ---- | ||
| - | ==== Schematic ==== | ||
| - | <html> | ||
| - | <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> | ||
| - | </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> | ||
| - | |||
| - | ---- | ||
| - | ==== change the PWM audio pins ==== | ||
| - | [[https://www.raspberrypi.org/documentation/configuration/pin-configuration.md]]\\ | ||
| - | [[https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=86609]]\\ | ||
| - | [[https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=39138]]\\ | ||
| - | |||
| - | Or like on [[https://othermod.com/raspberry-pi-zero-audio-circuit/]]\\ | ||
| - | Open: | ||
| - | $ sudo nano /boot/config.txt | ||
| - | Add: | ||
| - | 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 ==== | ||
| - | [[https://learn.adafruit.com/introducing-the-raspberry-pi-zero/audio-outputs]]\\ | ||
| - | [[https://othermod.com/raspberry-pi-zero-audio-circuit/]]\\ | ||
| - | |||
| - | |||
| - | ---- | ||