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#1
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![]() So I bought new PCB boards with the drop down resistor to prevent the LED's from going full 100% if the board looses the pwm signal. Thanks to Scubasteve for that modification! I'm sure this will save many a coral from being baked.
But, that also means I have to de-solder all my old boards and resolder everything on the new ones... wheeeeeee! Here's the new baord and the start of soldering the drop down resistor: ![]() And if anyone doubts the teeny tinniness of these resistors: ![]() All the resistors in on one board and the dip sockets: ![]() And with the terminals and jumper pins soldered in: ![]() |
#2
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![]() is there a way to add a potentiometer to this?
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Wow! That's Crazy! Why would you spend that much and go through all that trouble? ![]() |
#3
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![]() Sorry of this is a stupid question, but add a potentiometer to do what?
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#4
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![]() To manually control the brightness of the LEDs rather than going to the software.
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Wow! That's Crazy! Why would you spend that much and go through all that trouble? ![]() |
#5
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![]() I was confused too but now I see...
With these particular drivers, no. The LDD drivers are controlled with a PWM signal rather than a 0-5 or 0-10V source. If you got a simple IC, like a 555, you could add a potentiometer to that to vary the PWM signal to the drivers. It's not difficult to implement if you want to forgo a controller. There are simpler controllers than the Jarduino if that's what you are looking for. I use a Typhon but will hopefully be experimenting soon with a cool new controller that Spencer at Blue World Victoria is working on. |
#6
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![]() It's OK now. I just add another screen for individual LED brightness and save it to eeprom.
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Wow! That's Crazy! Why would you spend that much and go through all that trouble? ![]() |
#7
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![]() Glad you got it figured out. I'm out camping and doing this on my phone with my big dumb thumbs
![]() Trying not to have to put long posts up, lol. |
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