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ENG-CANSAT-PICO-USER-GUIDE (voir la source)
Version du 20 février 2022 à 22:15
, 20 février 2022 à 22:15→Power Pins
[[fichier:ENG-CANSAT-PICO-PINOUT-30.png]]
[[fichier:ENG-CANSAT-PICO-PINOUT-30.png]]
* '''VBUS''' - (GP24 is HIGH)
* '''VBUS''' - Does have 5V when the Pico micro USB is plugged onto a computer (or PSU). Python code also detect VBUS by querying the GP24 pin (goes HIGH when 5V is present).
* '''VSYS''' - (GP26 = VSYS/3)
* '''VSYS''' - allows to power-up the Pico from an external power source from 1.8 to 5.5V (lipo battery). The voltage on this pin can be monitored with analog pin GP26 (=VSYS/3). It is quite useful to warn the user when the battery must be refill. GP26 is not exposed on the GPIO connector.
* '''3V3''' -
* '''3V3''' - Output of the 3.3V onboard regulator. That pin can deliver up to 300mA to your project. This step-up/step-down 3.3V regulator is powered from VSYS.
* '''3V3_EN''' -
* '''3V3_EN''' - Tied this pin to the ground to disable the 3.3V regulator and shutdown the Pico.
* '''GND''' -
* '''GND''' - common ground.
=== Digital Pins ===
=== Digital Pins ===