Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
{
"metadata": {
"name": "BlinkenPi"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": "Import the GPIO module and set the board layout:"
},
{
"cell_type": "code",
"collapsed": false,
"input": "import random\nimport time\nimport RPi.GPIO as GPIO\nGPIO.setmode(GPIO.BCM)",
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 25
},
{
"cell_type": "markdown",
"metadata": {},
"source": "Initialize the Pins:"
},
{
"cell_type": "code",
"collapsed": false,
"input": "red=27\nblue=18\nyellow=22\npins = [red,blue,yellow]\n\nGPIO.setup(red, GPIO.OUT)\nGPIO.setup(blue, GPIO.OUT)\nGPIO.setup(yellow, GPIO.OUT)\n\ndef turn_off():\n for pin in pins:\n GPIO.output(pin, False)\n\nturn_off()",
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 26
},
{
"cell_type": "markdown",
"metadata": {},
"source": "Now switch the LEDs:"
},
{
"cell_type": "code",
"collapsed": false,
"input": "GPIO.output(red, True)\nGPIO.output(yellow, False)\nGPIO.output(blue, True)",
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 27
},
{
"cell_type": "code",
"collapsed": false,
"input": "for i in range(100):\n pin = random.choice(pins)\n mode = random.choice((True, False))\n GPIO.output(pin, mode)\n time.sleep(0.1)\nprint 'done'\nturn_off()",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "done\n"
}
],
"prompt_number": 28
},
{
"cell_type": "code",
"collapsed": false,
"input": "",
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 28
}
],
"metadata": {}
}
]
}