CrossRoads:
Here's the connections you want.
This code was written for IDE 00223 and is kinda long, but it gets the job done.
Need to declare all the variables with addresses per the MAX7219 datasheet, Table 2.
May have to change "SS" to "SSpin" or similar.
Great thanks a million. Sorry for cross threading but felt could get more answers faster and would have deleted after anyways as I know no one likes a know nothing cluttering good forums, again apologies for my ignorance this is just a project where our teachers really have thrown us in the deep end and expect too much as design students given the time they give us. Alas I have the entire matrix and MAX wired except for 2 things:
- What do i do with pin 24 if the matrix is all I want to rig?
- As per my calculations-although I don't think I fully understand variables
I need a 30K resistor to be safe http://www.adafruit.com/datasheets/BL-M07C881.PDF
Instead of the code writing the brightness of the matrix I believe I may try the "bar graph" way of lighting LEDs
to simulate dimming and brightening by just changing the number of LED rows that are lit.
This guy is doing without a MAX??
Does that mean I will get more power to matrix?
Will get resistor tomorrow and try it all out! Excited.