ChipMusic.org - How to add a switch to change from Normal to Inverted LCD

Re: How to add a switch to change from Normal to Inverted LCD

Mon, 22 Oct 2012 03:27:28 +0000

Telerophon says:

Justin Thursday makes a prefab kit for this, FYI.

Re: How to add a switch to change from Normal to Inverted LCD

Mon, 22 Oct 2012 01:01:10 +0000

Retrogamer09 says:

nitro2k01 wrote:

With a 74hc04, no. You need a DPDT switch for that. You could use a 74hc86 chip with a SPST chip. Described here:
http://blog.gg8.se/wordpress/2009/11/23 … d-palette/

Thanks, and how the connection goes using a 74hc04 with a DPDT, What cable from the IC connects to the DPDT switch in which order?

Re: How to add a switch to change from Normal to Inverted LCD

Mon, 22 Oct 2012 00:57:30 +0000

nitro2k01 says:

With a 74hc04, no. You need a DPDT switch for that. You could use a 74hc86 chip with a SPST chip. Described here:

http://blog.gg8.se/wordpress/2009/11/23 … d-palette/

How to add a switch to change from Normal to Inverted LCD

Mon, 22 Oct 2012 00:47:38 +0000

Retrogamer09 says:

Hello,

I want to get information on how to add a toggle switch to hex 74hc04 IC in order to switch from Normal display to Inverted display.

Basically, I want to know If I could use a SPST switch to do that, and if not, I would like to understand why.

Also, if you guys could help me giving me an idea how the connection goes, If I already have the IC installed in the motherboard, what do I do next to add the switch?, what cables to I cut and solder to the switch?

Thank you very much!