I want to construct a 24 seconds shot clock for used in a basketball game. I plan to display the output in an array/segments of LEDs. Any help from you guys? Is there any IC that can drive 10 or more LEDs at the same time for each ouput pin?
Six-Sixteen said:Please advice what transistor should I use. (My friend told me to use ULN2803A IC, but I'm still studying)
Six-Sixteen said:Hi Nigel,
Suppose I'll use TIP31 or TIP41 transistors, and use a 12Vdc supply, the output is used to drive 20 LEDs connected in parallel each has 330 ohms resistor in series, can I directly connect the input (Base-Emitter) to PIC16F84A microcontroller? Please help me with the transistor's biasing resistors and their connections.
Thank You very much.