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[Paparazzi-devel] Re: Futaba T6EXAP 3 Position Switch Hacking

From: cory barton
Subject: [Paparazzi-devel] Re: Futaba T6EXAP 3 Position Switch Hacking
Date: Wed, 6 Aug 2008 20:23:02 -0400

I added a 3 position switch to my Futaba transmitter. I have added the instructions to the wiki here:

I wanted to add the switch to channel 5, but channel 5 does not appear to have an ADC attached to it. Each channel, and the Dual Rate and Trainer switch is connected to a BU4051BCF IC.

From the datasheet: "The BU4051BC, BU4051BCF and BU4051BCFV are analog multiplexers / demultiplexers which use three-input digi-tal signals for control via an 8-channel analog switch. These products feature high on / off output voltage ratio and low crosstalk between analog switches."

As part of the process of determining if it is possible to connect the 3 position switch to channel 5, I documented the connections to the 4051 IC. I have uploaded that diagram to the wiki in the hope that it may prove useful to someone else.


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