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raspberrypipico:raspberrypipico [2021/03/12 13:21]
admin [Programmable I/O] 		raspberrypipico:raspberrypipico [2021/05/28 09:51]
admin [WS2812]
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 ==== Pinout ==== ==== Pinout ====
 {{:raspberrypipico:pico-r3-sdk11-pinout.jpg?600|}}\\ {{:raspberrypipico:pico-r3-sdk11-pinout.jpg?600|}}\\
 +// schematic from [[https://www.raspberrypi.org/documentation/rp2040/getting-started/#board-specifications|raspberrypi.org]]//\\
  
 On ADC 04 is a temperature sensor.\\ On ADC 04 is a temperature sensor.\\
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 [[https://datasheets.raspberrypi.org/pico/raspberry-pi-pico-python-sdk.pdf|Raspberry Pi Pico Python SDK]]\\ [[https://datasheets.raspberrypi.org/pico/raspberry-pi-pico-python-sdk.pdf|Raspberry Pi Pico Python SDK]]\\
  
-Plug in the RP Pico with pressed BOOTESL button + 
-Download Micro Python for the RP Pico: +Plug in the RP Pico with pressed BOOTESL button.\\ 
-  wget "https://www.raspberrypi.org/documentation/rp2040/getting-started/static/f70cc2e37832cde5a107f6f2af06b4bc/rp2-pico-20210205-unstable-v1.14-8-g1f800cac3.uf2"+Download the [[https://micropython.org/download/rp2-pico/|Pico Firmware]]:\\ 
 +  wget "https://micropython.org/resources/firmware/rp2-pico-20210510-unstable-v1.15-89-gd0de16266.uf2"
 Copy it to the RP Pico Copy it to the RP Pico
  
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 More sound with [[https://github.com/benevpi/pico_pio_buzz|PicoBuzz]] by benevpi.\\ More sound with [[https://github.com/benevpi/pico_pio_buzz|PicoBuzz]] by benevpi.\\
 +
 +----
 +==== Power ====
 +
 +   VBUS – USB power, 5V
 +   VSYS – power in (2-5V)
 +   3V3 – power out 3.3V, 300mA
 +   3V3_EN – disable internal voltage regulator
 +   RUN – enable, disable or reset
  
 ---- ----
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 one can change the duty cycle, 0 to 65535 one can change the duty cycle, 0 to 65535
   pwm.duty_u16(duty)   pwm.duty_u16(duty)
 +
 +----
 +==== ADC ====
 +The Raspberry Pi Pico has four 12bit analog to digital converter:
 +  ADC_VREF    (voltage reference)
 +  GP28 - ADC2
 +  AGND        (analog ground)
 +  GP27 - ADC1
 +  GP27 - ADC0
 +The fourth ADC is internally wired to a temperature sensor.\\
 +[[https://pico-adc.markomo.me/|Characterizing the Raspberry Pi Pico ADC]] by Mark Omo.\\
  
 ---- ----
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 ---- ----
-==== WS2812 ====+==== Links & Projects ====
  
 +
 +**WS2812**\\
 [[https://makersportal.com/blog/ws2812-ring-light-with-raspberry-pi-pico]]\\ [[https://makersportal.com/blog/ws2812-ring-light-with-raspberry-pi-pico]]\\
 +
 +**Usb Micro**\\
 +[[https://www.hackster.io/sandeep-mistry/create-a-usb-microphone-with-the-raspberry-pi-pico-cc9bd5]]\\
  
 ---- ----