| Main > Main Forum |
| Will 5v to the ground... EE help with RGB Topfire... see post #22 |
| << < (3/6) > >> |
| Bender:
--- Quote from: BobA on January 20, 2011, 10:27:43 am ---If you changed the LED to a common cathode --- End quote --- how would one do that? |
| Popcorrin:
--- Quote from: Bender on January 20, 2011, 05:59:56 pm --- --- Quote from: BobA on January 20, 2011, 10:27:43 am ---If you changed the LED to a common cathode --- End quote --- how would one do that? --- End quote --- They sell common cathode led's, but like BobA said, you run into the problem with the LED Wiz then. |
| Popcorrin:
What might be the easiest is run 5 volts up your orange wire and then when you press the button it would send 5V down your black wire which would then go to a 5v relay or a transistor to close the circuit for button 1. |
| Popcorrin:
Here's an altered pic. After thinking about it though, a relay might not be responsive enough, probably better to use a transistor. |
| Bender:
if I used a 5v transistor how would I wire it, it's got 3 contacts right? Please explain as you would I child... a slow dim-witted child I think this is the right diagram for a transistor switch how would I wire the B,C,E to my setup? ok I think my black wire goes to C, E to the ground and B to the encoder button 1? do I need a resistor between B and the encoder? am I even close? |
| Navigation |
| Message Index |
| Next page |
| Previous page |