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Step 3Connecting the Servos to the Arduino
If you're going to build a robot the first thing you probably want to work out is how to get it moving around. Most likely you want to be able to send it forward, backward, right, left and make it stop. If you can't figure out how to command it to move properly you're not likely to be able to make it do anything when you connect all the sensors. Below are the steps to connect the motor to the Arduino.
1. The first thing to do when setting up the solderless breadboard is to set up the ground (GND) and power (+6V) for the servos. I chose to use the two long strips on the board that would be closest to the Arduino.
2. Once the ground and power lines are identified connect the ground of the Arduino board to the ground strip on the solderless breadboard. Do not connect the power to the solderless breadboard yet.
3. Each servo has three wires that come out of them. Mine have a black, red, and white wire for each. The black is for ground, the red is for power, and the white is the control wire. Cut three jumper wires for each servo of the same size (so 6 in total).
4. Attach the jumper wires to the end of the servo wires and then each servo to the solderless breadboard.
5. Now use jumpers to connect the ground and power from each servo to the ground and power of the solderless breadboard.
6. Now connect the control wires from each servo to the Arduino. Connect the left servo to digital output (PWM) 3 and the right servo to digital output (PWM) 11.
7. Finally, connect the ground and power from the 4AA batteries to the solderless breadboard ground and power. Don't be alarmed if the servos start moving when your Arduino has no power or is not yet programed.
8. Using the code you should now be able to run the motors in the forward, backward, left or right directions using the included functions.
1. The first thing to do when setting up the solderless breadboard is to set up the ground (GND) and power (+6V) for the servos. I chose to use the two long strips on the board that would be closest to the Arduino.
2. Once the ground and power lines are identified connect the ground of the Arduino board to the ground strip on the solderless breadboard. Do not connect the power to the solderless breadboard yet.
3. Each servo has three wires that come out of them. Mine have a black, red, and white wire for each. The black is for ground, the red is for power, and the white is the control wire. Cut three jumper wires for each servo of the same size (so 6 in total).
4. Attach the jumper wires to the end of the servo wires and then each servo to the solderless breadboard.
5. Now use jumpers to connect the ground and power from each servo to the ground and power of the solderless breadboard.
6. Now connect the control wires from each servo to the Arduino. Connect the left servo to digital output (PWM) 3 and the right servo to digital output (PWM) 11.
7. Finally, connect the ground and power from the 4AA batteries to the solderless breadboard ground and power. Don't be alarmed if the servos start moving when your Arduino has no power or is not yet programed.
8. Using the code you should now be able to run the motors in the forward, backward, left or right directions using the included functions.
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Jan 16, 2012. 3:08 AMkerryavance
says:
would it be possible to use two motors instead of continuous rotation servos?
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Oct 11, 2010. 6:47 AMrobodevil
says:
you didnt show the connected power wire from battery pack to the solderless board..
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