- Connect the red wire from Vin on the Arduino board to the red row of the breadboard
STEM Connections
This makes the entire red row of the breadboard behave like Vin and will allow us to connect both Servos to Vin to give them the proper power.
If unmarked breadboards are being used, any row can be chosen, but make sure that all of the red wires go into the same row. Large breadboards with positive and negative columns work great but are still a bit more than is needed in this situation.
As with the Servo activity, 5V can be used instead of Vin, but the power output is not always consistent enough to properly control the Servos. If a power source larger than 6V is going to be used, then make sure that 5V is selected rather than Vin. Vin matches the input voltage supplied to the board and can be too much voltage for the Servos which typically handle 4.8-6volts.
Vin has a wire stuck in it
- Use 5V instead (Note: There have been some cases where 5V does not control the Servo properly like Vin does).
- Or, replace the Arduino board.
- Or, a teacher can use a box cutter or pliers to free the wire while the Arduino is UNPLUGGED from any power source.