MobileRead Forums - View Single Post - Advice sought for ereader for limited hand movement

dsmid · 09-16-2013, 10:00 AM

This should be possible with slightly modified (software-wise) Kindle 3 or 4 + Raspberry Pi + Wi-Fi dongle.
I can take care of the software changes, hardware changes involve connecting buttons/switches to GPIO pins of Raspberry Pi.
This solution requires Wi-Fi connection but no wires are needed between Kindle and Raspberry.
Alternatively you can connect Raspberry and Kindle with a USB cable and establish a USB network.

Details:
GPIO input change (detected by polling /sys/class/gpio/gpioN/value) would trigger sending command echo "send 109" > /proc/keypad (Page Up) or echo "send 104" > /proc/keypad (Page Down ) over SSH/Wi-Fi to Kindle.
See https://developer.ridgerun.com/wiki/...e_GPIO_signals

09-16-2013, 10:00 AM	#3
dsmid Linux devotee Posts: 598 Karma: 2069047 Join Date: Feb 2011 Device: Kindle 3, Kindle 4B, Kindle PW2	This should be possible with slightly modified (software-wise) Kindle 3 or 4 + Raspberry Pi + Wi-Fi dongle. I can take care of the software changes, hardware changes involve connecting buttons/switches to GPIO pins of Raspberry Pi. This solution requires Wi-Fi connection but no wires are needed between Kindle and Raspberry. Alternatively you can connect Raspberry and Kindle with a USB cable and establish a USB network. Details: GPIO input change (detected by polling /sys/class/gpio/gpioN/value) would trigger sending command echo "send 109" > /proc/keypad (Page Up) or echo "send 104" > /proc/keypad (Page Down ) over SSH/Wi-Fi to Kindle. See https://developer.ridgerun.com/wiki/...e_GPIO_signals Last edited by dsmid; 09-16-2013 at 11:11 AM.