Ok so I have 2 projects going right now. The first was a Knight Rider scanner for my car and the second is a smaller version of that to hang in my workshop just for looks. So the first one I can't ask about here due to forum rules about automotive mods and applications so I'm hoping I can still get some help here with the smaller version.
Here is the schematic I have gotten to be able to put this together. Rigging up a light bar is the easy part but wiring and controlling it is another story. This schematic is for just that...a control box.
I have read the other threads on similar projects and while the principle is the same I'd like to do something different. I don't want it to just scan back and forth, which is something I can figure out on my own. The 2 things I would like to do in addition to that are 1. A good Comet tail effect and 2. an "all on" effect where all the lights on the bar come on at once and then start scanning. Also I need some help understanding this schematic. I'm still fairly new to the building of electronics. Here is what I can already deduce from the picture...
Components
1. 1 - 74LS00
2. 1 - 74LS138
3. 1 - 74LS193
4. 1 - LM555 Timer
5. 1 - 0.01uF capacitor
6. 4 - 0.1uF capacitors
7. 1 - 0.33uF capacitor
8. 3 - Resistors (470, 1K, 100K)
The questions I have are this...
1. Where are the main power and ground for this circuit?
2. What wattage resistors should I be using?
3. Should the capacitors be polarized, non-polarized...?
4. Shouldn't there be transistors somewhere in this circuit? Possibly at the light outputs?
5. Will this circuit provide the desired effects mentioned above.
As you can tell my knowledge is somewhat limited in this area. Any help I could get would be very much appreciated. Thanks and Merry Christmas!
Here is the schematic I have gotten to be able to put this together. Rigging up a light bar is the easy part but wiring and controlling it is another story. This schematic is for just that...a control box.
I have read the other threads on similar projects and while the principle is the same I'd like to do something different. I don't want it to just scan back and forth, which is something I can figure out on my own. The 2 things I would like to do in addition to that are 1. A good Comet tail effect and 2. an "all on" effect where all the lights on the bar come on at once and then start scanning. Also I need some help understanding this schematic. I'm still fairly new to the building of electronics. Here is what I can already deduce from the picture...
Components
1. 1 - 74LS00
2. 1 - 74LS138
3. 1 - 74LS193
4. 1 - LM555 Timer
5. 1 - 0.01uF capacitor
6. 4 - 0.1uF capacitors
7. 1 - 0.33uF capacitor
8. 3 - Resistors (470, 1K, 100K)
The questions I have are this...
1. Where are the main power and ground for this circuit?
2. What wattage resistors should I be using?
3. Should the capacitors be polarized, non-polarized...?
4. Shouldn't there be transistors somewhere in this circuit? Possibly at the light outputs?
5. Will this circuit provide the desired effects mentioned above.
As you can tell my knowledge is somewhat limited in this area. Any help I could get would be very much appreciated. Thanks and Merry Christmas!