tiwari.sachin
Full Member level 6
I am trying to design a matrix LED display using 5x8 ROW Anode display. I am not sure but i might be using 15 to 16 such displays for the initial version(ofcourse this can change as per customers requirement)
What seemed easy initially seems way too confusing now. I am not able to understand which are the appropriate ICs that i should go in for the design.
I have attached two possible design configurations for your reference. Kindly let me know which one is more feasible option. Or might be even a third option
I was initially told to use 74HC595 but i am not too convinced with it. I am not sure if it can handle the amount of current flow in worst, all LED ON condition.
I will surely not be driving all the LEDs at a time but then if its done, the hardware should not blow I want to surely have a very decent reliable hardware design.
Meanwhile, the controller used will be LPC2148.
Waiting for your response.
What seemed easy initially seems way too confusing now. I am not able to understand which are the appropriate ICs that i should go in for the design.
I have attached two possible design configurations for your reference. Kindly let me know which one is more feasible option. Or might be even a third option
I was initially told to use 74HC595 but i am not too convinced with it. I am not sure if it can handle the amount of current flow in worst, all LED ON condition.
I will surely not be driving all the LEDs at a time but then if its done, the hardware should not blow I want to surely have a very decent reliable hardware design.
Meanwhile, the controller used will be LPC2148.
Waiting for your response.