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I dont have any schematics, I don't have any idea how to do it. I was just trying some random things to try to make what I want (not totally random though :P)
Hello,
I'm playing with Up/Down Counters since past few days trying to get a counter that changes its operation after reaching min/max.
I want my counter to go like 0,1,2,3,.....,13,14,15 and then 14,13,12,...,3,2,1,0 and then again 0,1,2,3.. and carry on this way with a clock pulse.
I tried...
Hello,
I have been searching about Up/Down Counters for a while but I could only find 4-bit up/down counters. And I need a 3-bit up/down counter so that it reset to 0 after 7 and produce a HIGH when it reaches 0 or 7 on MIN/MAX pin.
Does anyone knows a 3-bit up/down counter IC or how to use...
Yes i'm connecting them directly to the microcontroller. :s It's 'Teensy 2.0' (Arduino)
10E? 10ohm?
Okay, from ULN2003's datasheet, I can see that ULN2003 has 7 transistors. Is there any other IC that has 8 transistors? If not, then I think I have to use one separate transistor.
It has "NPN...
Hello guys,
This is my first post here, "plus" a newbie, so please be nice :P
So I have 64 White LEDs multiplexed. I tested my matrix by connecting each column to GND and +5v (from Teensy) to each row one by one "without resistor". All worked well.
Let me explain why without resistor.
Before...
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