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==== Raspberry Pico ====

[[https://projects.raspberrypi.org/en/projects/getting-started-with-the-pico|getting started with the pico]] \\
[[https://leanpub.com/rpitandt/read|libro "Raspberry Pi Pico Tips and Tricks"]] \\
[[https://randomnerdtutorials.com/raspberry-pi-pico-interrupts-micropython/|Pico: Interrupts and Timer Interrupts (MicroPython)]] \\
[[https://randomnerdtutorials.com/raspberry-pi-pico-guides-sensors-modules/|Pico: 20 Free Guides for Sensors and Modules]] \\

[[https://picockpit.com/raspberry-pi/es/todo-sobre-la-frambuesa-pi-pico-w/]]\\
[[https://docs.micropython.org/en/latest/rp2/quickref.html#|microPython en raspberry pico]]\\
[[https://electrocredible.com/category/embedded-systems/raspberry-pi-pico/]]\\
\\
[[https://peppe8o.com/raspberry-pi-pico-ethernet-port-adding-the-wiznet-ethernet-hat/]]\\


   Raspberry Pico RP2040
   GPIO 0 = pin 1 = UART-TX 
   GPIO 1 = pin 2 = UART-RX 
            pin 3 = ground
   GPIO 2 = pin 4 = Dig INPUT 1 
   GPIO 3 = pin 5 = Dig INPUT 2 
   GPIO 4 = pin 6 = Dig INPUT 3 
   GPIO 5 = pin 7 = Dig INPUT 4 
            pin 8 = ground
   GPIO 6 = pin 9 = Dig INPUT 5 
   GPIO 7 = pin 10 = Dig INPUT 6 
   GPIO 8 = pin 11 = I2C-SDA 
   GPIO 9 = pin 12 = I2C-SCL 
            pin 13 = ground
   GPIO 10 = pin 14 = Dig INPUT 7 
   GPIO 11 = pin 15 = Dig INPUT 8 
   GPIO 12 = pin 16 = Dig INPUT 9 
   GPIO 13 = pin 17 = Dig INPUT 10 
             pin 18 = ground
   GPIO 14 = pin 19 = Dig INPUT 11 
   GPIO 15 = pin 20 = Dig INPUT 12 
   
   GPIO 16 = pin 21 = Dig OUT 7 
   GPIO 17 = pin 22 = Dig OUT 6 
             pin 23 = ground
   GPIO 18 = pin 24 = Dig OUT 5 
   GPIO 19 = pin 25 = Dig OUT 4 
   GPIO 20 = pin 26 = Dig OUT 3 
   GPIO 21 = pin 27 = Dig OUT 2 
             pin 28 = ground
   GPIO 22 = pin 29 = Dig OUT 1  
             pin 30 = RUN | Reset
   GPIO 23 = OP wireless power on signal  
   GPIO 24 = OP/IP wireless SPI data/IRQ  
   GPIO 25 = OP wireless SPI CS when high (LED) 
   GPIO 26 = pin 31 = ANALOG In 0 
   GPIO 27 = pin 32 = ANALOG In 1 
             pin 33 = Analog Ground
   GPIO 28 = pin 34 = ANALOG In 2 
   GPIO 29 = OP/IP wireless SPI CLK/ADC (ADC3 := VSYS/3) 
             pin 35 = Analog Volt Reference
             pin 36 = power +3,3 volt (out max 300mA)
             pin 37 = 3,3v Enable
             pin 38 = power ground
             pin 39 = power +5 volt (in)
             pin 40 = power USB bus volt