For my project i’m using 4x max7219 ic’s.
On every website/ google/ image or so, I found schematics using Rset 27k ohm resistor for each module.
But when I look up for pre modules they don’t use 27k ohm resistor but a 10k ohm resistor.
For my previous project I had a comparable project where I use one adjustable resistor between 0 to 30k ohm for all te modules, this way i could adjust the brightness, but this time i want to use an LDR.
Do I still need to place a resistor with that high value?
I can’t find the 10k Load resistor on any pre module.
On any website that sells those modules with a schematic, they show me the module with only Rset resistor, but on the schematic it shows with a 10k load resistor.
Are those resistor even needed? Or are they indirectly connected with the Arduino/ ground and Load?
I have attachment as example.