Starting this build with the LEDG dimming tutorial using an ESP32, 100 Ohm resistor, and PC817 optocoupler, and connecting the Dim+/- as shown - works great for a single LED Driver.
Questions:
1) Is it possible/safe to connect more than one drivers Dim+/- wires in parallel and use the described dimming circuit above to control those drivers?
2) Referencing this document for 1-10 & 0-10 dimming drivers, https://prolightinggroup.com/wp-content ... rivers.pdf.
In our tutorial example - we are delivering 20 mA of control supply for 1 driver/led. If I want to control 5 LED drivers would I need to deliver 20mA x 5 = 100mA on voltage control line? In this case I now surpass max 50mA input for the PC817, so I'd blow it out. I can look for a higher rated optocoupler but am I on the right track to controlling multiple drivers?"When using this dimming method, it is important to check the current required to provide the analogue signal. For example, you may find that need a current of 0.1ma per LED power supply. Therefore, if you are controlling 3 LED drivers one dimming controller, you will need a current of 0.3ma on the voltage control line."
3)Last - This dimming controller would need power, ideally not plugged into a socket 100% of the time. Has anyone found a method to add a battery and charger to the ESP controlled dimming circuit? Would be cool to hold at least a 30 day charge on the controller.
Thanks for any help - I'm pretty new to circuitry so advice is very appreciated.
