Posted by: m1paf | January 31, 2009

Pictures of completed software in operation

Hello all,

I’ve had a productive day and finished the code that sets up the serial communications. I’ve implemented this as a menu only accessible at power up, by holding the mode and Z buttons. The pictures below show all of the screens that the controller uses together with (hopefully) a short video showing the controller in action. Apologies for the slightly blurred pictures but I don’t have a tripod and using the flash on the camera is a non starter.

This is the main screen and shows the controller in automatic mode. In this case the radio frequency is 3.602MHz and the controller is showing that the current L and C values will be used from 3.600MHz to 3.620MHz. Low impedance matching is selected and the capacitor in the balanced L network is switched to the low range position.

img_0425

 

This picture shows the controller in manual mode and high impedance matching has been selected.

img_0426

 

Here, you can see that the radio frequency (3.810MHz) is outside of the amateur band so the tuner will not attempt to set the L and C values. I’ve done this to keep the number of memories high within the amateur bands so that antennas with a high Q can be used without a problem.

img_0427

 

This is the main setup menu with 2 options – set up the serial communications to the radio or clear all of the L and C settings from the tuner (this will usually only be used once on first power up).

img_0428

 

This is the communications setup menu, again with 2 options to either change the baud rate or switch between master and slave modes. Slave mode will be useful if you are using a computer with the radio and wan’t to “snoop” the serial port with a Y cable.

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Fairly self explanatory, currently supports 4800 or 38400 baud but others could be added.

img_0430

 

Screen to select master or slave mode for the serial port.

img_04321

 

This is the only setup screen that will ask for confirmation as it cannot be undone. As the tuner may take quite a while to initially set up I thought it wise to get confirmation that the memories really do need clearing.

img_0433

 

The video clip below should show the controller in operation:

 

The noise you can hear in the background of the video clip is the stepper motors moving. I need to start boxing the controller up now and sort out the RF end of the tuner.

73 Paul.

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Responses

  1. Fantastic work! do visit my blog too…….


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