openmv/scripts/examples/OpenMV/02-Board-Control/vsync_gpio_output.py
2021-02-14 21:19:37 +02:00

23 lines
976 B
Python

# VSYNC GPIO output example.
#
# This example shows how to toggle a pin on VSYNC interrupt.
import sensor, image, time
from pyb import Pin
sensor.reset() # Reset and initialize the sensor.
sensor.set_pixformat(sensor.RGB565) # 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.