1. Solution.
# rotate_leds_leds_off from microbit import * pin = [pin13, pin14, pin15] time = [200, 200, 200] index = 0 state9 = 0 state6 = 0 display.off() pin9.set_pull(pin9.NO_PULL) pin6.set_pull(pin6.NO_PULL) while True: state9 = pin9.read_digital() state6 = pin6.read_digital() if state9 is 1: index = index + 1 if index > 2: index = 0 pin[index].write_digital(1) sleep(time[index]) pin[index].write_digital(0) if state6 is 1: index = index - 1 if index < 0: index = 2 pin[index].write_digital(1) sleep(time[index]) pin[index].write_digital(0)
2. Solution.
#project_solution from microbit import * pin = [pin13, pin14, pin15] time = [1500, 1000, 500] index = 0 state9 = 0 state6 = 0 display.off() pin9.set_pull(pin9.NO_PULL) pin6.set_pull(pin6.NO_PULL) while True: state9 = pin9.read_digital() state6 = pin6.read_digital() if state9 is 1: index = index + 1 if index > 2: index = 0 pin[index].write_digital(1) sleep(time[index]) pin[index].write_digital(0) sleep(time[index]) if state6 is 1: index = index - 1 if index < 0: index = 2 pin[index].write_digital(1) sleep(time[index]) pin[index].write_digital(0) sleep(time[index])
3: Solution.
# buttons_with_leds_and_zip from microbit import * pin_list = [pin13, pin14, pin15] time_list = [500, 1000, 1500] state9 = 0 display.off() pin9.set_pull(pin9.NO_PULL) while True: state9 = pin9.read_digital() for pin, time in zip(pin_list, time_list): if state9 is 1: pin.write_digital(1) sleep(time) pin.write_digital(0) sleep(time)