building process #2 – solder tablet control wires


since the tablet will be within a frame, we won’t have access to the hard keys.

so i came up with a solution of controling the tablet with wires interface, using the CD4066BE chip, activated by capacitive sensores (AKA capsense)

read on CD4066BE: http://car-android.com/research-6-cd4066be-quad-bilateral-switch/

read on capsense: http://playground.arduino.cc//Main/CapacitiveSensor?from=Main.CapSense

so, i opened up the tablet and solder all the hard keys terminals. (and in this tablet it was sooo easy since it had a big side by side 5 terminal points for the hard keys..)

soldering points

soldering points

 

IMAG0985

the green wire need to be connected to the positive side of reset button.

IMAG0987

 

 

that it.. easy, we done- add some female header to the wires..

tablet control wires

tablet control wires

 

 

it works like that:

screen on/off – connect BLUE + BLACK

for shut down – connect GREEN+BLACK

volume down – connect WHITE+GRAY

volume up – connect PURPLE + GRAY

 

so we got 6 wire to manipulate: black, white, gray, purple, blue, green.

we will control the tablet using the CD4066BE chip controlled by ATMEGA328 IC.

 

 

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