Connect the LED - BLUETOOTH APP INVENTOR - AGTECH

1. Connect a white wire from pin 13 to the orange row.
2. Connect the resistor from the orange row to the blue row.
3. Place the long leg of the LED in the blue row and the short leg of the LED in the black row.

If you are using the Thinkabit Lab notebook, have students complete the following:

White Wire: pin 13 to orange row

Resistor: orange row to blue row

LED: long leg (+) in blue row

 Short leg (-) in black row

1. Don't have white wire

• While the actual color of the wire does not matter, color coding wires makes it easier to use for instruction.

1. There’s a wire stuck in Vin/GND

• An instructor or adult can use a box cutter or pliers to remove the wire
• Or, replace the Arduino
• Or, use a different GND

1. Wire doesn't have enough exposed metal to connect to the Arduino or breadboard

• An instructor or adult can use the wire cutters to strip the plastic coating off the end of the wire

1. Wire/Resistor/LED doesn’t fit into the breadboard

• Use 22-gauge wire
• Try a different hole in the same row of the breadboard

1. Resistor legs are bent

• The legs of the resistor can be bent or reshaped, as needed
• Replace the resistor if it breaks. It is normal for the resistor to break after repeated reshaping of the legs.

1. LED did not light up

• The LED is programmed to be controlled by the information sent over Bluetooth, so the LED should not turn on until a signal from App Inventor is sent.

1. LED legs are bent

• Bend and reshape the legs of the LED, as necessary.
• It is normal for LED legs to break after repeated reshaping of the legs. Replace the LED.

1. Can’t find the long/short leg of LED

• When the LED legs are reshaped many times, it could be difficult to figure out which leg is short or long.
• Placing the LED in backward won't have a negative effect on the LED, it just won't turn on, so you can try it one way and if it doesn't work, flip it around.