I have 12F1840 which is connected to MAX7219. As amount of ports is quite low, 3 ports are wasted on driving that IC. I would like to be able to use any of these pins for reading a button...
using that code it takes about 1mS to send data to 24 ws2812's . so if your main program can tolerate 1mS gaps in processing every 50mS it would work ok
Thank you very much Richard , your advice fixed my problem.
I am so happy 'cause I really like this chip.
Now I can apply my mind to getting an interrupt every minute which
appears to be quite...
The easiest way to identify signal activity on a line is the digital logic probe that sounds a beeper when it identifies a logic low. So, some train of beeps present on probing the line will...
Is there a really easy to use method to see if there is some type of digital communications being passed through a wire? I am looking for something I can hand to another person with 2 minutes of...
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Re-using pins while still connected to MAX7219 ?
Hello.
CuriousOne Today, 06:21I have 12F1840 which is connected to MAX7219. As amount of ports is quite low, 3 ports are wasted on driving that IC. I would like to be able to use any of these pins for reading a button...