Here's a little example on how to adapt an old analog dimmer into a DMX-capable dimmer.
The schematic shows the changes:
I've build Christian's schematic for the DMX-part.
The nice thing about it is, I can use the analog faders as pre-heat settings, since both analog and DMX work in parallel on the output channels.
The end-result, with build-in PCB in a small corner of the dimmer:
I've change Christian's firmware a littlebit, so that also my opto-triac can be controlled, since mine is switched to GND, instead of to VCC. The change is in Dimmerpacks firmware 4.4, if you use the compiler-directive 'invertphase'?
Good luck if anybody wants to build one too.
Alles was mit der PC_DIMMER Hardware zu tun hat
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