This DEMO displays the action of an EM87 Magic Eye tuning indicator using a standard Python 2.6.x or greater install. It is for at least Windows Vista 32 Bit and at least Debian Linux 6.0.0.

It is for FUN only and shows how to generate yet another analogue display using a default text mode install.

With careful thought and viewing between Code Page 850, (Windows Vista onwards), and Code Page 437, (EFFECTIVELY Linux), one can pick the "graphics" characters to generate some interesting old style text mode displays on screen.

Enjoy finding simple solutions to often very difficult problems...

Bazza...

This is a two channel version of the "Four Bit Vertical Coloured Analogue Bar Graph Generator DEMO...".

These are DUAL LED style "VU" meters in the vertical plane...

This is for standard Python 3.x.x.

It has different overload beeps for each channel, and has all the unwanted code has been removed.

It demonstrates how to obtain multichannel ability, (it is possible to add more channels).

Enjoy finding simple solutions to often very difficult problems...

Bazza...

This is a(n) LED style "VU" meter in the vertical plane instead of the horizontal one in the recipe below:-

http://code.activestate.com/recipes/577612-seven-bit-colored-analogue-bar-graph-generator-dem/?in=lang-python

It is another "AT A GLANCE" display with an overload error beep too.

This is for Linux only and tested on Python 2.6.x although it should work on earlier 2.x.x versions.

A Python 3.x.x version can be found here:-

http://www.linuxformat.com/forums/viewtopic.php?t=13637

This is issued as Public Domain and you may do with it as you please.

Enjoy finding simple solutions to often very difficult problems...

..For STANDARD Python 2.6 and above...

This code will display a horizontal full colour analogue "VU" style meter. It displays green for normal, yellow for warning and red for danger with a critical error beep near the end of full scale, at value 120+.

This version is for Python 2.6 and above and only for the Linux, (*nix?), platform.

It is an "at a glance" display that is in colour rather than having to read say a digitally generated number.

A Python 3.x version can be found here:-

http://www.linuxformat.com/forums/viewtopic.php?t=13443

This has uses "for at a glance" voltmeters, ammeters, data-loggers, anemometers etc, etc...

Watch for wordwrapping etc...

NOTE:- This is Public Domain and you may do with it as you please.

73...

Bazza, G0LCU...

Team AMIGA...

I needed a simple standard Python analogue and digital display along with an overload beep when used as a basic voltmeter.

Analogue readout, for quick glance. Digital readout, for better accuracy. Beep, to warn me of impending doom... ;o)

This was my starter code and works from Python 1.4.x to 2.7.x on MINIMUM platforms, AMIGA A1200, MS Windows ME and Knoppix 5.1.1. It is a stand alone program and the easiest way to start it is to import it as though it is a module.

(I DO have a Python 3.x.x version too and WILL be uploaded here in the future.)

Although this is a DEMO it did access, (home built), HW from various ports on differing platforms.

This module IS needed for it to work:-

http://code.activestate.com/recipes/577588-clear-screen-and-beep-for-various-platforms/?in=lang-python

These simple HW access modes using standard Python code WILL be released in the future.

This DEMO is released as Public Domain and you may modify it as you please...

Enjoy finding simple solutions to often very difficult problems...

73...

Bazza, G0LCU...

Team AMIGA...