This is how to connect.
* Though, this can be assigned anyway, for this application of the
Arduino, we will make the following
* assignment
* A2 will connect to the PTT line, which is the usually a part of the mic
connector
* A3 is connected to a push button that can momentarily ground this line.
This will be used to switch between different modes, etc.
* A6 is to implement a keyer, it is reserved and not yet implemented
* A7 is connected to a center pin of good quality 100K or 10K linear
potentiometer with the two other ends connected to
* ground and +5v lines available on the connector. This implments the
tuning mechanism
73 Matjaz
S56ZVD
On Wed, 15 Mar 2017 17:06:39 +0100, "matjaz via Groups.Io"
<matjaz_zejn@...> wrote:
Wednesday, March 15, 2017 3:46 PM Re: [BITX20] Bitx40 another
Raduino(?) problem
Go to
The photo at the end of the section "Step 4: Volume Control" is correct,
follow that example.
On Wed, Mar 15, 2017 at 04:11 am, matjaz wrote:
I have a problem how to connect the 10k pot. on arduino board.
In this scheme it is not clear.
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[4] /mt/4526026?uid=180494
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