A quick intro to get started.
Gather the materials below and get ready to build your compass!
|Electronic Compass PCB||1|
|10-pos stackable header||1|
|8-pos stackable header||2|
|6-pos stackable header||1|
|4xAA battery pack||1|
|Double sided tape||1|
Tools you'll need
Place all 16 resistors along the outer rim of the shield. Make two 90 degree bends in the each resistor to form a U shape. Place the legs of each resistor through one of the R# holes. Once through, bend the legs out a bit so the resistor doesn't fall out. Flip the shield over and solder. Trim the legs after soldering.
Place the 16 LEDs in each of the white circles on the outer rim of the shield. LEDs have polarity, which means that they only allow current in one direction. One leg of the LED is longer than the other. That is the positive leg. The shorter leg is the negative leg. Match the leg polarity to symbol on the shield when placing the LED. Once all LEDs are placed, flip over the shield and solder all 16 LEDs. Trim the legs like the resistors.
Place the headers in their appropriate sockets on the East and West sides of the compass. The plastic will be on the top face. Solder only one pin of each header in place, then turn the PCB over to the top to make sure the headers are straight, use the soldering iron to heat up the pin you soldered while simultaneously manipulating the plastic part so that it is not sitting at an angle. Once all are straight, you can solder the rest of the pins.
Next we'll attach the battery pack to the bottom of the Arduino. Note that the double sided tape may be difficult to remove and will leave residue on the bottom of the Arduino.