The Door Buzzer

1 Soldering your board

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Gather the following components.
- A 9 or 5V Buzzer
- A BC547B Transistor
- A 330Ω resistor
- A 1kΩ resistor
- and your board.

Solder these components directly to your board as shown below (ensure you get the transistor and the buzzer the right way around)

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Now we need to solder on the LED.
To allow the LED to be mounted in the case, we're going to solder it onto flying leads.
Firstly, cut around 10cm of red and black multicore wire and strip the ends. Also find an 5mm LED in the colour you desire.

Now apply a little bit of solder to the long leg of the LED.

then apply a little solder to the stripped end of the red wire.
Now you can hold the two together, and use your soldering iron to apply a little heat. The solder will melt and bond the two together.

Now slide some heatshrink up the wire so that it covers the solder join. Use the edge of your iron to heat the heatshrink.

Repeat this with the short leg and the black wire, then twist the wires together.

You can now solder the flying leads into the board.

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We need to do the same with the push-to-make switch
Twist red and black multicore wire through the holes in the legs of the switch.

Then add solder and heatshrink to secure the leads in place.

Then solder the leads to the board.

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Lastly you need to solder your battery snap in place.
Feed the leads of your battery snap through the strain hole and then down into the solder holes as shown.

Then solder them in place.

Badge It

Take photos of your board from both sides.
Silver - Produce a soldered PCB (Mostly complete)
Gold - Produce a working PCB has neat wiring OR neat soldering
Platinum - Your working circuit has both neat wiring and soldering - IMAGE of the SOLDER SIDE