... Oh yeah, the lighting...
The single UV CC at the bottom of the case lights things up nicely. When I figure out the power distribution system for the fans and lighting system there will be a 2nd UV CC in the top of the case, as well as a pair of white UV CCs somewhere else.
The Lighting will be another channel of 1-touch bay bus that cycles White+UV, White only, UV only, off. I am debating doing under-case lighting, keep an eye on this thread and we'll see if I do or if I don't.
The one-touch baybus: Please dunna steal my ideas!
Preliminary schematic
here.
The one-touch baybus currently cycles through 12V,10V(adjustable),5V(adjustable),0ff(or adjustable) by way of a 7400 series counter IC who's clock line is attached to a normally open SPST swtich (NO-SPST). When the switch is pressed, the clock line to the counter IC (74HCT393) goes to 5V, when its released it drops back to 0V. The 74HCT393 detects clock on the falling edge (5V to 0V transisition) and increments its outputs (in binary) by one. So the QA through QD outputs count like so (assuming start from 0)
Code:
IN BINARY:
0000
0001
0010
0011
Past that the cycle repeats itself, but I'm only using QA and QB so I don't care what happens to the other outputs.
QA and QB are then fed into A and B of the 74HCT193 IC (dual 2 bit demux) which takes the binary value on the output of the counter IC and translates it into a decimal value which shows up on Y0 through Y3.
Code:
COUNTER DEMUX OUTPUT
0000 All off
0001 Y1 on
0010 Y2 on
0011 Y3 on
The Y1-Y3 outputs of the demux (74HCT193) currently drive the coil inputs of 3 reed relays. This is probably not how the circuit will stay as 3 reed relays are rather bulky. I am going to redesign this system so that the output of the demux controls a 555 timer's output duty cycle and use PWM to control the fans.
The NOSPST switch that currently acts as an input will be replaced by a touch sensor from Qprox. No visiible switches, jsut a glowing indicator
You may have noticed that the 393 and 193 chips have a 2nd channel that is not used yet? The 2nd channel of the 393 will be used to drive MOSFETS to control the cold cathodes. since it counts in binary, cycleing through Off (00b) White CC (01b), UV CC (10b), and both (11b) will be easy. The 2nd channel of the 193 doesn't serve any purpose. yet.
:dremel: Coming soon to a mod near you... :dremel: (Aka the TODO list)
Integrate modders mesh into intake hole for the radiator
1 Touch fan-bus
1 touch light-bus
power distribution system for mods
lighting mods
custom stainless steel feet?
window designs? (Spiv... you know what I mean
)
Convert pump plug
Custom front bezel involing
*stealthed slotload
*stealthed CDRW
*see-through to 10K RPM HDDs
*lighting mods for activity lights
*system health
*VFD
Phew! A lot done but a lot to go! That's it for now! More updates tonite when I get home.