Making a Wireless Keyboard Using Arduino and Zigbee

1/*============================ EG LABS ===================================//
2
3   Demonstration on how to wirelessly send ps2keyboard data using Xbee
4
5
6   The circuit:
7
8 LCD:
9
10 * LCD RS pin to digital pin 12
11
12 * LCD Enable   pin to digital pin 11
13
14 * LCD D4 pin to digital pin 7
15
16 * LCD D5 pin   to digital pin 6
17
18 * LCD D6 pin to digital pin 5
19
20 * LCD D7 pin to digital   pin 4
21
22 * LCD R/W pin to ground
23
24 * 10K resistor:
25
26 * ends to   +5V and ground
27
28 * wiper to LCD pin 3
29
30 * LED anode attached to digital   output 9
31
32 * LED cathode attached to ground through a 1K resistor
33
34
35   KEYBOARD:
36
37 DATA PIN TO PIN NUMBER 8
38
39 CLOCK PIN TO PIN NUMBER 3
40
41
42   XBEE:
43
44 RX PIN OF XBEE TO TX0 PIN OF ARDUINO
45
46 SHORT THE GROUND PINS   OF ARDUINO AND XBEE
47
48============================== EG LABS ===================================*/
49
50
51#include   "PS2Keyboard.h"
52
53// include the library code:
54
55#include <LiquidCrystal.h>
56
57//   initialize the library with the numbers of the interface pins
58
59LiquidCrystal   lcd(12, 11, 7, 6, 5, 4);
60
61
62#define DATA_PIN 8
63
64PS2Keyboard keyboard;
65
66
67void   setup() 
68
69{
70
71  pinMode(9, OUTPUT);     
72
73  lcd.begin(16, 2);
74
75   lcd.print("ENGINEERS GARAGE");
76
77  lcd.setCursor(0, 1);
78
79  lcd.print("KEYBOARD   to XBEE");
80
81  
82
83  keyboard.begin(DATA_PIN);                        //   initialize the PS2 keyboard
84
85
86  Serial.begin(9600);
87
88  Serial.println("ENGINEERS   GARAGE");
89
90  delay(1000);
91
92  digitalWrite(9, HIGH);  
93
94}
95
96
97void   loop()
98
99{
100
101  if(keyboard.available())            // check if there is   any data coming from the keyboard
102
103  {
104
105    char dat = keyboard.read();              // read the data from the keyboard
106
107    Serial.write(dat);
108
109   }else;
110
111}
112
113

1/*============================ EG LABS ===================================//
2
3  Demonstration on how to wirelessly send ps2keyboard data using Xbee
4
5
6  The circuit:
7
8 LCD:
9
10 * LCD RS pin to digital pin 12
11
12 * LCD Enable  pin to digital pin 11
13
14 * LCD D4 pin to digital pin 7
15
16 * LCD D5 pin  to digital pin 6
17
18 * LCD D6 pin to digital pin 5
19
20 * LCD D7 pin to digital  pin 4
21
22 * LCD R/W pin to ground
23
24 * 10K resistor:
25
26 * ends to  +5V and ground
27
28 * wiper to LCD pin 3
29
30 * LED anode attached to digital  output 9
31
32 * LED cathode attached to ground through a 1K resistor
33
34
35  KEYBOARD:
36
37 DATA PIN TO PIN NUMBER 8
38
39 CLOCK PIN TO PIN NUMBER 3
40
41
42  XBEE:
43
44 RX PIN OF XBEE TO TX0 PIN OF ARDUINO
45
46 SHORT THE GROUND PINS  OF ARDUINO AND XBEE
47
48============================== EG LABS ===================================*/
49
50
51#include  "PS2Keyboard.h"
52
53// include the library code:
54
55#include <LiquidCrystal.h>
56
57//  initialize the library with the numbers of the interface pins
58
59LiquidCrystal  lcd(12, 11, 7, 6, 5, 4);
60
61
62#define DATA_PIN 8
63
64PS2Keyboard keyboard;
65
66
67void  setup() 
68
69{
70
71  pinMode(9, OUTPUT);     
72
73  lcd.begin(16, 2);
74
75  lcd.print("ENGINEERS GARAGE");
76
77  lcd.setCursor(0, 1);
78
79  lcd.print("KEYBOARD  to XBEE");
80
81  
82
83  keyboard.begin(DATA_PIN);                        //  initialize the PS2 keyboard
84
85
86  Serial.begin(9600);
87
88  Serial.println("ENGINEERS  GARAGE");
89
90  delay(1000);
91
92  digitalWrite(9, HIGH);  
93
94}
95
96
97void  loop()
98
99{
100
101  if(keyboard.available())            // check if there is  any data coming from the keyboard
102
103  {
104
105    char dat = keyboard.read();             // read the data from the keyboard
106
107    Serial.write(dat);
108
109  }else;
110
111}
112
113