USB device to turn the page

[tvjohn]

http://breadboardconfessions.blogspo...rfaces-to.html

may be useful? It might be worth contacting him, as he's building this to help his Sister, so you could perhaps compare notes.

I do intend to investigate the console port, but haven't as yet, as I haven't thought of a good way to bring out the 3 wires cable through the case.

I imagine forward & back page is your main goal so your Dad can just work through a book, but more switch control would be useful?

[h1uke]

Originally Posted by Robar46

Can anyone provide a list of commands that would activate different buttons?

in order to simulate key- or fiveway manipulator presses you have to write
a command to a /proc/keypad or /proc/fiveway special file, respectively.

The command can be one of the following:

• send nn
• sendshift nn
• sendalt nn

This can be done by issuing the echo command to the linux console shell:

echo "send nn" >/proc/keypad

'nn' here is a key code according to a list below:

; Alt + Row1 

1 = 2
2 = 3
3 = 4
4 = 5
5 = 6
6 = 7
7 = 8
8 = 9
9 = 10
0 = 11

; Row1 

Q = 16
W = 17
E = 18
R = 19
T = 20
Y = 21
U = 22
I = 23
O = 24
P = 25

; Row2 

A = 30
S = 31
D = 32
F = 33
G = 34
H = 35
J = 36
K = 37
L = 38
Del = 14

; Row3 

Z = 44
X = 45
C = 46
V = 47
B = 48
N = 49
M = 50
Dot = 52
Slash = 53
Enter = 28

; Row4 

Shift = 42
Alt = 56
Space = 57
aA = 90
Sym = 94

; Edge

VPlus = 115
VMinus = 114
Home = 98
< = 109
> = 124
Menu = 139
Back = 91

; FiveWay manipulator

; 
FW_Left = 105
FW_Right = 106
FW_Up = 122
FW_Down = 123
FW_Press = 92

; Kindle3-specific keys

; Row4
k3_aA =	190
k3_Sym	= 126
k3_Home	= 102
k3_Back	= 158

; Edge, left and right 
k3_> = 191
lk3_< = 193
lk3_> = 104

; bottom edge. same codes as on DXG, but generated by dev/input/event2 
k3_VPlus = 115
k3_VMinus = 114

; FiveWay manipulator 
k3_FW_Up = 103
k3_FW_Down = 108
k3_FW_Press = 194

[Robar46]

Thanks for the help, but I am not really familiar with linux at all. What does it mean to send a command to the "linux console shell"? Do I have to access it somehow before sending a command? I've soldered wires to the serial port pads according to the layout in this post: http://www.mobileread.com/forums/showthread.php?t=49942, and I've tried sending some echo commands as you suggested but I'm not getting any response (115200kbps, 8-N-1). I've also monitored the TX line with an oscilloscope when starting it up, but I didn't see any activity.

[Bricorn]

Thinking simpler, how about a low voltage solenoid (battery powered) physically clamped over the page turn button with a foot pedal to activate it?

[Sir Alex]

Tomorrow, I successfully checked my idea with serial line. So it possible to control Kindle over Serial line. You must change root password (via ssh and usbnetwork). Reboot Kindle and enter within 60 sec, root login and password when login prompt (in the terminal). After this you can send commands to console in example:
echo "send 193" > /proc/keypad
this will turn next page.
Left to do ATMEL (or other MCU) based adapter and write software for it

[twobob]

Originally Posted by h1uke

in order to simulate key- or fiveway manipulator presses you have to write
a command to a /proc/keypad or /proc/fiveway special file, respectively.

The command can be one of the following:

• send nn
• sendshift nn
• sendalt nn

This can be done by issuing the echo command to the linux console shell:

echo "send nn" >/proc/keypad

'nn' here is a key code according to a list below:

; Alt + Row1 

1 = 2
2 = 3
3 = 4
4 = 5
5 = 6
6 = 7
7 = 8
8 = 9
9 = 10
0 = 11

; Row1 

Q = 16
W = 17
E = 18
R = 19
T = 20
Y = 21
U = 22
I = 23
O = 24
P = 25

; Row2 

A = 30
S = 31
D = 32
F = 33
G = 34
H = 35
J = 36
K = 37
L = 38
Del = 14

; Row3 

Z = 44
X = 45
C = 46
V = 47
B = 48
N = 49
M = 50
Dot = 52
Slash = 53
Enter = 28

; Row4 

Shift = 42
Alt = 56
Space = 57
aA = 90
Sym = 94

; Edge

VPlus = 115
VMinus = 114
Home = 98
< = 109
> = 124
Menu = 139
Back = 91

; FiveWay manipulator

; 
FW_Left = 105
FW_Right = 106
FW_Up = 122
FW_Down = 123
FW_Press = 92

; Kindle3-specific keys

; Row4
k3_aA =	190
k3_Sym	= 126
k3_Home	= 102
k3_Back	= 158

; Edge, left and right 
k3_> = 191
lk3_< = 193
lk3_> = 104

; bottom edge. same codes as on DXG, but generated by dev/input/event2 
k3_VPlus = 115
k3_VMinus = 114

; FiveWay manipulator 
k3_FW_Up = 103
k3_FW_Down = 108
k3_FW_Press = 194

Super genuinely helpful. Thanks