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paper_bits:pb704_raspi-bit [2017/11/23 14:38] admin [change the PWM audio pins] |
paper_bits:pb704_raspi-bit [2020/02/14 16:22] admin [Pure Data] |
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| ===== Raspberry Bit ===== | ===== Raspberry Bit ===== | ||
| - | a Raspberry Pi Zero board. | + | |
| + | 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 ==== | ==== Schematic ==== | ||
| <html> | <html> | ||
| - | <img src="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> | ||
| + | </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> | ||
| Line 13: | Line 31: | ||
| [[https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=86609]]\\ | [[https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=86609]]\\ | ||
| [[https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=39138]]\\ | [[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 ==== | ==== Links ==== | ||
| [[https://learn.adafruit.com/introducing-the-raspberry-pi-zero/audio-outputs]]\\ | [[https://learn.adafruit.com/introducing-the-raspberry-pi-zero/audio-outputs]]\\ | ||
| + | [[https://othermod.com/raspberry-pi-zero-audio-circuit/]]\\ | ||
| ---- | ---- | ||