Buy a kit:
Soldering Iron and Solder
Step 2: Orient LEDs
Step 3: Populate LEDs
Use a wire cutter or low profile trimmers to clip the leads flush with the board. The green ones shown in the pictures are from the craft section at Wal-Mart and work great.
Next populate the LEDs one row at a time and solder them and trim. If you are confident, you can do them all at one time, but if you are new to soldering, one row at a time is best.
You should now have 20 LEDs soldered and oriented correctly. It is important that they face out straight to match the holes in the case.
Step 4: Add Resistors
Step 5: Solder Microcontroller
The IC is very easy to install. Please MAKE SURE the notch on the top of the chip matches the notch on the white outline of the chip on the board. If your kit has an IC socket, DO NOT solder the IC socket to the board. The IC Socket plus the chip will be too high to fit in the case. If you do not have a case, you may solder the socket to it. It is not necessary however to use the socket.
Step 6: Attach USB-Mini Connector
The USB connector should fit snug on the board. Solder the metal tabs on the front and right of the board for a good mechanical connection. You only need to solder the two outermost data pins for ground and power. The pictures illustrate what it should look like.
Step 7: Place Crystal and Capacitors
Now it is time to add the oscillator. The crystal (shiny box) and the capacitors (orange round things with legs) send 16,000,000 vibrations a second to the integrated circuit which counts them and calculates the time. It is very important to solder these parts well and trim the leads nice and clean.
Step 8: Add Touch Sensor Pin
Step 9: Bamboo Case
Step 10: Woo Hoo!
Have fun with you new clock and check out my other kits at: