20T202DA5JB VFD module

[hydrolisk1792]

Hello, this is mostly for dperrow.

I have a VFD module that I puled from a Coke Machine at my work that I would like to use in a present project however I'm having a lot of trouble with it. I would like to use it with Smartie, but I don't think I'm even hooking it up properly to the embedded PC. I have the data sheet as well as the pinout (4 pins only). One pin for power, one for ground, one for Serial Data, and one for register clock. I tried hooking up only the serial data line to the TX line on the serial port but nothing. I can't send nothing to the display. Any help would be greatly appreciated.

Here is the datasheet for it. http://www.datasheetlib.com/datasheet/1 ... ional.html

[dperrow]

Sorry, am a bit sick at the moment so may be a little while before I can respond properly.

Pretty sure this is an spi interface and won't work straight from a tx port. You will an adapter to similar.

[hydrolisk1792]

Sorry, am a bit sick at the moment so may be a little while before I can respond properly.

Pretty sure this is an spi interface and won't work straight from a tx port. You will an adapter to similar.

Okay not a problem mate you get better

[dperrow]

I think this is another i2c interface device which you won't be able to drive directly from a PC (but feel free to impress me and say - oh yes you can!)

The driver for this would be a bit more complex to do although it is possible if you interface it with an Arduino or similar.

[hydrolisk1792]

I think this is another i2c interface device which you won't be able to drive directly from a PC (but feel free to impress me and say - oh yes you can!)

The driver for this would be a bit more complex to do although it is possible if you interface it with an Arduino or similar.

I think this display might be dead because I took it back into work and plugged it back into the soda machine and it didn't do anything lol. I'll get back to you when I can scrounge another one up.