Is it possible? I've seen some posts that it's not. But not sure why. There is even a section in the docs that talk about it, but I don't get the drift of it well. Point is, they are way too bright. Help. As a side note; I'm using a prototype board with a adrino mega.
#Karl's Chorno 7 segment dimming
white garnet
inner nest
Is it possible? I've seen some posts that it's not. But not sure why. There i...
If you are using Mobiflight firmware and MF Connector with Max7219 7 segment modules, then yes, you can control the brightness to 15 discrete levels.
Look for the "Brightness Reference" option in the output config, display tab. When activated, the brightness of the 7-segment display is set according to the value of the output config designated as brightness reference in the range 0 to 15.
white garnet
OK, I see that. It does a pull down and references another position. Mine are labeled UL, UR, LL, LR. So when I want to set the value on the UL, its not in the drop down. Only the other 3. And I don't get where to set that value of 0-15. I set the value to dim globally and it did nothing. I have no other LEDS running off the board through the Arduino. Those run to a 12v dimmer. Just buttons and 7 segment. I created a dummy output just for dimming, but again, don't know how to set the 0-15 value. Thanks for your help.
inner nest
You need to create another output and call it say 7 SEG BRT... Set that as your brightness reference. Now, the value you set this output to determines the brightness. This is a per max7219 chip setting, so to prevent different outputs from overwriting each other, set the same brightness reference to all 7 segments displays.
white garnet
Yes, I did add an output. But Im certainly missing something. Where do you define the value of 0-15. Just like in the picture above?
inner nest
The value of the output designated as brightness reference should be set to a range 0 to 15
It is a separate output from the 7 segment display output
inner nest
I already said the brightness reference is a separate output config you need to create.
It is not any of the 7 segment display output configs.
inner nest
Create the output, set the value in the range 0 to 15 via any method, then bind the output as config reference in the 7 segment display tab option.
white garnet
This is what I thought the documentation said, yet it changes nothing.
inner nest
What is the value of the Sim var being read by this output in the Sim Variable tab? You seem to be setting UL Chrono Digits as config reference but not using it.
The interpolation sets a range 0 to 15,but then you multiply it by 2, why?
white garnet
Sim variable is Capt chrono. The config reference I'm not even sure is needed. Didn't know I was multiplying by 2 but see that now. I actually thought that was the setting of 2 of 0-15. So I still am clueless on how to set that.
white garnet
I got it to dim to what I want using the global slider of the seven segment display. I'm happy now. Thanks for al your help and understanding Jamie.