Add VSYNC GPIO output example.

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iabdalkader 2018-11-02 00:19:04 +02:00
parent 6103fb0c92
commit 7997d02e52

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# VSYNC GPIO output example.
#
# This example shows how to toggle the IR LED 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)
sensor.skip_frames(time = 2000) # Wait for settings take effect.
# IR LED pin object
ir_led_pin = Pin('LED_IR', Pin.OUT_PP, Pin.PULL_NONE)
# This pin will be toggled on/off on VSYNC (start of frame) interrupt.
sensor.set_vsync_output(ir_led_pin)
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.
# Turn off the IR LED after snapshot.
ir_led_pin.off()
print(clock.fps()) # Note: OpenMV Cam runs about half as fast when connected
# to the IDE. The FPS should increase once disconnected.