Water Recycler (Grey Water)

Step 2 Make the PCB.

Make your PCB. I used the tried and tested toner transfer method. The attached schematic & PCB were done in Eagle. I'm just learning Eagle so please excuse my mistakes. I placed vias on most of the pads to increase there size. I found I just couldn't get the DRC rules right so I found this method easier.

Parts List
1x 8 pin IC socket.
1x PICAXE-8M
1x 7805 5v regulator.
1x 1amp bridge rectifier.
2x PCB mount fuse holders for M205 fuse.
1x 500mA M205 fuse.
3x BC639 transistors.
12V relay with switch contacts rated at 240VAC 10 Amps.
3x 3way PCB screw terminal blocks 5mm spacing.
2x 2way PCB screw terminal blocks 5mm spacing.
1x 1N4004 diode.
1x 1000uf 35v (or higher) electrolytic capacitor.
6x 2.7K resistors 1/4 watt.
3x 10K resistors 1/4 watt.
1x 100nf ceramic or mylar capacitor.
1x 180ohm 1 watt resistor - note resistance and wattage may need to be varied due to supply voltage.
2x 5mm green LEDs.
1x 5mm red LED.
1x 5mm amber LED.
1x weatherproof box to house the controller.
1x small box to house the 3 status LEDs.
4x waterproof cable grommets with internal rubber glands.
Various size cable ties, heat shrink.

Parts list for the PIC programmer circuit
1x 10K resistor.
1x 22K resistor.
1x 9 PIN female DB connector (this connects to your PC / MAC).

Comments

[Gurunadha Reddy]

How does this stuff work.