39 lines
700 B
Markdown
39 lines
700 B
Markdown
|
---
|
||
|
|
title: Rasberry PI Basics
|
||
|
|
---
|
||
|
|
|
||
|
|
## Rasberry PI Basics Example
|
||
|
|
```python
|
||
|
|
## CODE THAT MAKES AN LED GLOW FOR 2 SECONDS
|
||
|
|
import time
|
||
|
|
import RPi.GPIO as GPIO
|
||
|
|
while True:
|
||
|
|
GPIO.output(2, GPIO.HIGH
|
||
|
|
time.sleep(1)
|
||
|
|
GPIO.output(2, GPIO.LOW)
|
||
|
|
time.sleep(1)
|
||
|
|
|
||
|
|
## CODE FOR PWM CONTROL OF LED BRIGHNTESS
|
||
|
|
import RPi.GPIO as GPIO from time
|
||
|
|
import sleep led_pin = 2
|
||
|
|
|
||
|
|
GPIO.setmode(GPIO.BCM)
|
||
|
|
GPIO.setup(led_pin, GPIO.OUT)
|
||
|
|
|
||
|
|
pwm = GPIO.PWM(led_pin, 100)
|
||
|
|
pwm.start(0)
|
||
|
|
|
||
|
|
try:
|
||
|
|
while True:
|
||
|
|
for x in range(100):
|
||
|
|
pwm.ChangeDutyCycle(x)
|
||
|
|
sleep(0.01)
|
||
|
|
for x in range(100, 0, -1):
|
||
|
|
pwm.ChangeDutyCycle(x)
|
||
|
|
sleep(0.01)
|
||
|
|
|
||
|
|
except KeyboardInterrupt:
|
||
|
|
pwm.stop()
|
||
|
|
GPIO.cleanup()
|
||
|
|
```
|