# This work is licensed under the MIT license. # Copyright (c) 2013-2023 OpenMV LLC. All rights reserved. # https://github.com/openmv/openmv/blob/master/LICENSE # # VSYNC GPIO output example. # # This example shows how to toggle a pin on VSYNC interrupt. import sensor import time from pyb import Pin sensor.reset() # Reset and initialize the sensor. sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to RGB565 (or GRAYSCALE) sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240) # This pin will be toggled on/off on VSYNC rising and falling edges. led_pin = Pin("LED_BLUE", Pin.OUT_PP, Pin.PULL_NONE) sensor.set_vsync_callback(lambda state, led=led_pin: led_pin.value(state)) clock = time.clock() # Create a clock object to track the FPS. while True: clock.tick() # Update the FPS clock. img = sensor.snapshot() # Take a picture and return the image. print(clock.fps()) # Note: OpenMV Cam runs about half as fast when connected # to the IDE. The FPS should increase once disconnected.