DMX 512 complete solution

[rene]

Hi,

On the forum is not much to read about flowcode4 and DMX512.
Is there anyone who has a complete solution DMX512.
An example for both DMX master and slave would be helpful

Thanks ....

Rene van Dijk

[Dan81]

Hello Rene

I've made 2 years ago a Custom Code for DMX (from RS232 component) and with Flowcode3.
It's only a Master mode and the hardware SCI of the Pic.
I've made some macros for init, break, startcode, data ...

I have no Slave mode, it is a little bit more complicated.

If you can tell me what you want to do , I will search the Flowchart and change it into Flowcode4.


Daniel

[Jay Dee]

Hi Guys,
Being very lazy...but did anyone make any progress with a DMX Slave ?
I've been playing with an RGB project and realized that free software and a USB to DMX dongle are very cheap and a PC based DMX program would remove all of the complex hard coding of light patterns from a custom base unit.
I've started to read bits from the web on DMX and will have some bedtime reading on the protocol but if anyone has made progress already...

I'll be going for something tiny, light and minimal for this application but still want it reliable; circuit wise I guess i'll need,
> 3 x Pwm output drivers for the R,G,B channels.
> some voltage protection and regulation.
> RS485 driver chip.
> usual support circuit bits and PIC. I guess I would need a resonator to keep the PIC good for timing the signal in.
> optional jumpers to set DMX slave address. (I could hard code this instead)

Hard bit will be the firmware I guess.