Introduction
After the quick start of QuecPython, this document introduces how to light an LED.
Light an LED
Hardware Connection
- Prepare one LED and two Dupont lines
- Connect the ground end (flag end) of the LED to GND with Dupont line
- Connect the other end of the LED to GPIO with Dupont line
Here is an example:
Software Code
import utime # import utime module
from machine import Pin # import Pin module
gpio_x = Pin(Pin.GPIO4, Pin.OUT, Pin.PULL_PU, 0) # GPIO is configured in output mode with 0 output by default
count = 30
state = 1
while count:
gpio_x.write(state)
print(‘LED state: {}’.format(state))
if state == 1:
state = 0
else:
state = 1
utime.sleep_ms(500)
count -= 1
