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Step 1Gather Electronic Parts
Here are the parts lists for the electronic stuff.
All of the electronics can be obtained from Digikey or other sources. You will need a bunch of different colors of wire, too.
You will need to be able to program the PIC microcontroller- a PICKit2 or ICD-2 or any of hundreds of other programmers can do the job. A suitable programmer will cost about $20, but once you have it you will find all sorts of projects that can use microcontrollers and will get a lot of use out of it.
When I bought my PICKit2 from digikey I ordered an accessory pack of five PIC10F206 chips with 8 pin DIP adapters. The IC is in a tiny SOT23 package which is fine if you're going to make a PCB but pretty useless for breadboarding and one-off construction projects. The 10F206 is also available in an 8 pin DIP package- I suggest you use it.
I have not provided PCB layout info for the controller here because I didn't use a PCB. The circuit is so simple that it seems sort of silly to make a PCB for it. There are only 4 parts on the board- the relay, the uC, the bypass cap, and a resistor. The circuit requires fewer parts than a 555 timer chip circuit. Just cut some perf board to fit whatever box you're using and wire the thing up. It should take all of 30 minutes start to finish.
The optical circuits are pretty simple- an IC, a cap, and a LED. The LED and optical IC go into diagonally opposite corners of the pipe frame, so you're going to need a bunch of colored wire. I "assembled" the IC and capacitor on small pieces of perf board that fit into cap-plugs for the PVC elbow fittings in the frame- see photos on the next page.
All of the electronics can be obtained from Digikey or other sources. You will need a bunch of different colors of wire, too.
You will need to be able to program the PIC microcontroller- a PICKit2 or ICD-2 or any of hundreds of other programmers can do the job. A suitable programmer will cost about $20, but once you have it you will find all sorts of projects that can use microcontrollers and will get a lot of use out of it.
When I bought my PICKit2 from digikey I ordered an accessory pack of five PIC10F206 chips with 8 pin DIP adapters. The IC is in a tiny SOT23 package which is fine if you're going to make a PCB but pretty useless for breadboarding and one-off construction projects. The 10F206 is also available in an 8 pin DIP package- I suggest you use it.
I have not provided PCB layout info for the controller here because I didn't use a PCB. The circuit is so simple that it seems sort of silly to make a PCB for it. There are only 4 parts on the board- the relay, the uC, the bypass cap, and a resistor. The circuit requires fewer parts than a 555 timer chip circuit. Just cut some perf board to fit whatever box you're using and wire the thing up. It should take all of 30 minutes start to finish.
The optical circuits are pretty simple- an IC, a cap, and a LED. The LED and optical IC go into diagonally opposite corners of the pipe frame, so you're going to need a bunch of colored wire. I "assembled" the IC and capacitor on small pieces of perf board that fit into cap-plugs for the PVC elbow fittings in the frame- see photos on the next page.
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Apr 9, 2010. 11:47 AMjrig
says:
which software did you use to draw the schematic???
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6
Apr 9, 2010. 5:30 PM
Mark Rehorst (author)
says:
Mark Rehorst (author)
says:
I can't recall what it was. I am sure it was a freebie though...
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1
May 1, 2008. 7:05 PMviniciuspedrozo
says:
You can sale it to me?
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