Python • Re: MicroPython: How to wake Pi Pico / Pico W / Pico 2 from sleep using GPIO button?

Yes, you can use Pin.irq() to wake up the Pico from sleep. For the sleep state, machine.deepsleep() is typically used for deeper power saving, while machine.lightsleep() is lighter but still reduces power consumption.

In both cases, you'll configure the buttons with Pin.irq() to trigger an interrupt on button press (using either Pin.IRQ_FALLING or Pin.IRQ_RISING depending on your setup). You don't need to worry too much about the specific sleep mode unless you're optimizing for power—deepsleep() will completely stop most of the microcontroller's processes, whereas lightsleep() keeps more peripherals active.

Here’s are a simple structure checkout :

python
Copy code
from machine import Pin, deepsleep

def wake_up(pin):
# Handle wake-up logic here
print("Button pressed, waking up!")

# Configure buttons
button = Pin(15, Pin.IN, Pin.PULL_UP) # Example pin

# Set up interrupt
button.irq(trigger=Pin.IRQ_FALLING, handler=wake_up)

# Go to deep sleep until a button is pressed
deepsleep()
This will keep the Pico in deep sleep until one of the buttons triggers the interrupt.

Statistics: Posted by Williamharry — Thu Nov 07, 2024 9:12 am

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