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Step 3Construction
I designed a PCB for the circuit but did not use it. I used perfboard instead.
The pictures should give information enough for anyone willing to replicate exactly what I did. Depending on the height of the box of your choice, the square hole could be not necessary.
Again. keep in mind the heat generated by the LED. Also if you are planning to use this thing to light up a glass object from below, the latter may prevent heat from flowing.
Use a 5Volt regulated wall adapter 1.5A .
During the first uses, monitor the heat generated as it depends a lot from the environment (plastic case, heat insulating stands, objects on the LED).
Never stare at the beam. The light is strong and concentrated.
The microprocessor must be programmed. I used WinPIC. The hardware interface is the one described here.
Attached you can find the schematics, the PCB (check this before, as I never used it !), the source code fully commented and the HEX file to burn directly into the PIC. The software was designed with MPLAB by Microchip.
Hope you enjoy this instructable. If you make your own lamp, please share pictures of your creation and please leave a comment.
Ciao
5V.
The pictures should give information enough for anyone willing to replicate exactly what I did. Depending on the height of the box of your choice, the square hole could be not necessary.
Again. keep in mind the heat generated by the LED. Also if you are planning to use this thing to light up a glass object from below, the latter may prevent heat from flowing.
Use a 5Volt regulated wall adapter 1.5A .
During the first uses, monitor the heat generated as it depends a lot from the environment (plastic case, heat insulating stands, objects on the LED).
Never stare at the beam. The light is strong and concentrated.
The microprocessor must be programmed. I used WinPIC. The hardware interface is the one described here.
Attached you can find the schematics, the PCB (check this before, as I never used it !), the source code fully commented and the HEX file to burn directly into the PIC. The software was designed with MPLAB by Microchip.
Hope you enjoy this instructable. If you make your own lamp, please share pictures of your creation and please leave a comment.
Ciao
5V.
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Aug 26, 2010. 9:05 PMboopainspires
says:
great design but for doing we need pretty interest
Reply
Aug 9, 2007. 12:21 PMtomy
says:
hi, I have built this lamp and works great. I'll try to modyfy code , because I want to add fourth channell for amber led dimming {buttons 8 and 0}.When it will be done, I make some photos and post here. best regards tomy
Reply
15
Aug 9, 2007. 1:56 PM
5Volt (author)
says:
5Volt (author)
says:
Thank for sharing. Please do post photos !
Reply
Aug 10, 2007. 7:05 AMtomy
says:
Hi 5volt, here some pictures of my "demo". Transistors are Nmos. Maybe will be great to add some random colors changing. It's easy for you, I think ... Can you make some like that? wbr tomy
Reply
Aug 10, 2007. 7:13 AMtomy
says:
And pics...
Reply
Jan 4, 2008. 6:21 AMcila21
says:
Hi, Tomy: Can you tell me some more about circuit you made with NMOS, maybe some schematic and formulas you used to calculate the values of resistors?
Reply
Jan 4, 2008. 7:26 AMtomy
says:
Hi, I have used industrial rgb strips with integrated resistors. N-MOS are IRF520, connected to controller via 100R resistor.Drain and source are connected like bipolar transistors.
Reply
15
Aug 10, 2007. 9:14 AM5Volt (author)
says:
5Volt (author)
says:
Whoa! Nicely done. NMOS are fine and it showns. Random colours should be doable but I don't have much spare time to spend with my projects and I'm currently working on something different... Congratulations Best regards 5Volt
Reply
Aug 13, 2007. 12:54 PMtomy
says:
Thank You! If You find some spare time, try make this feature because it's only one think what's missing in Your wonderfull project !!! wbr tomy
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