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Chrisk

Senior Member

Joined: 21/12/2014
Location: Australia
Posts: 137

Posted: 12:58pm 23 Sep 2017

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Hi everyone

Is it possible to use the simple 16X2 or 16X4 LCD display on the MM+
I can see it handles the fancy stuff but I only need this simple display.
Is there a routine written for it somewhere?

Chris K

mikeb

Senior Member

Joined: 10/04/2016
Location: Australia
Posts: 177

Posted: 01:09pm 23 Sep 2017

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Hi Chris,

Check page 28 of the Micromite manual. You will find all you need there.
Make sure you declare pins undefined for anything else.

The MM+(and X) can do everything it's predecessors can......and some.

Regards, Mike B.Edited by mikeb 2017-09-24

There are 10 kinds of people in the world.
Those that understand binary and those that don't.

Alastair
Senior Member

Joined: 03/04/2017
Location: Australia
Posts: 161

Posted: 02:51pm 23 Sep 2017

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Chris,
I have used a few 1602 & 2004 LCDs as cheap readouts on monitor & logging units. It is nice to have a simple way to see what is going on. I drive the back light from a pwm pin and include a timeout in the s/w so that after say 3 mins it clears the screen and turns off the backlight. Not only does this save power but it gives the lcd long life rather than having burn in by being on all the time. Have a push button that causes an interrupt and turns the display on again.

If you are having a pin count crisis there are variants of these displays that have an I2C/serial piggy back board for not much more. They are easy to drive too.

Cheers, Alastair

Chrisk

Senior Member

Joined: 21/12/2014
Location: Australia
Posts: 137

Posted: 11:06pm 24 Sep 2017

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Hi Mike and Alistair, thanks for your support.

Mike your suggestion to look at page 28 made me look for manuals other than the MM+ manual which had limited info about my display application.
I then downloaded the micromite manual and found all the required info.
Should have looked at it first but thought it would all be in the MM+ manual.

Alistair
Your suggestion of the PWM pin is a good one. I will give it a go.

Thanks Guys

Chris K

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