1+ # ===========================================================================
2+ # This is the library for Hover.
3+ #
4+ # Hover is a development kit that lets you control your hardware projects in a whole new way.
5+ # Wave goodbye to physical buttons. Hover detects hand movements in the air for touch-less interaction.
6+ # It also features five touch-sensitive regions for even more options.
7+ # Hover uses I2C and 2 digital pins. It is compatible with Arduino, Raspberry Pi and more.
8+ #
9+ # Hover can be purchased here: http://www.justhover.com
10+ #
11+ # Written by Emran Mahbub and Jonathan Li for Gearseven Studios.
12+ # BSD license, all text above must be included in any redistribution
13+ # ===========================================================================
14+ #
15+ # INSTALLATION
16+ # Place the Hover_library.py file in the same folder as the Hover_example.py file.
17+ # Then run Hover_example.py by typing: sudo python Hover_example.py
18+ #
19+ # SUPPORT
20+ # For questions and comments, email us at [email protected] 21+ # ===========================================================================
22+
23+ import smbus
24+ import time
25+
26+ #For Raspberry Pi rev1, change this to smbus.SMBus(0). Raspberry Pi rev2 uses smbus.SMBus(1)
27+ bus = smbus .SMBus (1 )
28+
29+ dict = {'00100010' :'Right Swipe' , '00100100' :'Left Swipe' , '00101000' :'Up Swipe' , '00110000' :'Down Swipe' , '01001000' :'East Tap' , '01000001' :'South Tap' , '01000010' :'West Tap' , '01000100' :'North Tap' , '01010000' :'Center Tap' }
30+
31+ class Hover (object ):
32+
33+ def __init__ (self , address , ts , reset ):
34+ print "Initializing Hover...please wait."
35+ self .address = address
36+ self .ts = ts
37+ self .reset = reset
38+
39+
40+ import RPi .GPIO as GPIO
41+
42+ self .GPIO = GPIO
43+ self .GPIO .setmode (GPIO .BCM )
44+ self .GPIO .setup (self .ts , GPIO .IN ) #ts
45+ self .GPIO .setup (self .reset , GPIO .OUT ) #mclr
46+ self .GPIO .output (self .reset , False )
47+
48+ time .sleep (5 )
49+
50+ self .GPIO .output (self .reset , True )
51+ self .GPIO .setup (self .reset , GPIO .IN )
52+
53+ time .sleep (5 )
54+ print "Hover is ready! To exit the program, hit Ctrl+C"
55+
56+
57+ def getStatus (self ):
58+
59+ if (self .GPIO .input (self .ts )):
60+ return 1
61+ else :
62+ self .GPIO .setup (self .ts , self .GPIO .OUT ) #ts
63+ self .GPIO .output (self .ts , self .GPIO .LOW )
64+ return 0
65+
66+ def getEvent (self ):
67+
68+ busData = bus .read_i2c_block_data (self .address ,0 ,18 )
69+
70+ gestureEvent = busData [10 ]
71+ touchEvent = (((busData [14 ] & 0b11100000 ) >> 5 ) | ((busData [15 ] & 0b00000011 ) << 3 ))
72+
73+ if gestureEvent > 1 :
74+ event = "{:08b}" .format ((1 << (busData [10 ]- 1 )) | 0b00100000 )
75+ return event
76+ elif touchEvent > 0 :
77+ event = "{:08b}" .format (touchEvent | 0b01000000 )
78+ return event
79+
80+
81+ def setRelease (self ):
82+
83+ self .GPIO .output (self .ts , self .GPIO .HIGH )
84+ self .GPIO .setup (self .ts , self .GPIO .IN ) #ts
85+
86+ def end (self ):
87+
88+ self .GPIO .cleanup ()
89+
90+ def getEventString (self , event ):
91+ return dict [event ]
92+
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