importpybdefled_angle(seconds_to_run_for):# make LED objects
l1=pyb.LED(1)l2=pyb.LED(2)accel=pyb.Accel()foriinrange(20*seconds_to_run_for):# get x-axis
x=accel.x()# turn on LEDs depending on angle
ifx<-10:l1.on()l2.off()elifx>10:l1.off()l2.on()else:l1.off()l2.off()# delay so that loop runs at at 1/50ms = 20Hz
pyb.delay(50)