1. Robot Assembly
1) Assembling the Robot
- Please refer to the manual for assembling the robot.
- Ensure all components are properly connected.
2) Verifying Cable Connections
- Left DC Motor 1 with Left Front Leg → M1 Port
- Right DC Motor 2 with Right Front Leg → M2 Port
- Left DC Motor 3 with Left Rear Wheel → M3 Port
- Right DC Motor 4 with Right Rear Wheel → M4 Port
- Servo Motor 1 Controlling Alligator's Mouth → OUT1 Port
- Left LED 1 → OUT2 Port
- Right LED 2 → OUT3 Port
2. Code Upload & Robot Operation
Without Direct Coding, when using the Complete Robot Operation Program provided by XROBO
When Directly Coding individual robot operation programs
1) When using the Complete Robot Operation Program
- If the X4 Operation Program is already uploaded, to the robot, please proceed directly to Operate Robot.
① Preparing for Upload
- Ensure mBlock is installed on your computer. If not, please install mBlock.
- To operate the robot, you will need a download board and a download cable. If you do not have these components, please purchase them.
② Download and Load the Operation Program
- Please refer to the Using the Operation Program page to download the X4 Operation Program and load it into mBlock.
③ Uploading the Code
- Upload the code to the robot by following the instructions on the upload method page or video (starting at 34 seconds).
④ Operating the Robot
- ① Turn on the power to the CPU board.
- ② Press and hold the START button for more than 2 seconds. Release it when you hear the "Do Re Mi Fa Sol La Ti Do" melody.
- ③ Press the START button 6 times to select the "La" tone.
- ④ Turn on the power to the remote control and have fun controlling the robot.
2) If You Are Coding the Program Yourself
① Preparing for Upload
- Ensure mBlock is installed on your computer. If not, please install mBlock.
- To operate the robot, you will need a download board and a download cable. If you do not have these components, please purchase them.
② Coding the Program
- Launch mBlock and freely code your program by referring to the coding examples or the manual.
③ Uploading the Code
- Upload the code to the robot by following the instructions on the upload method page or video (starting at 34 seconds).
④ Operating the Robot
- ① Turn on the power to the CPU board.
- ② Briefly press the START button on the CPU board and then release it.
- ③ Turn on the power to the remote control and have fun controlling the robot.
3. Coding Examples
- To check the answer, swipe the image to the side.
1) Opening and Closing the Mouth
Using a Remote Control
- button 1: Open the alligator's mouth (Servo motor angle 90)
- When button 1 is released: Close the alligator's mouth (Servo motor angle 60)
2) Changing Alligator’s Driving Speed Using Variables
Using Remote Control
- Button 1: Move forward
- Button 2: Move backward
- When Buttons 1-2 are released: Stop
Since the left wheels are connected to the M1 and M3 ports, and the right wheels are connected to the M2 and M4 ports, adjust the speed for ‘M1~4’ accordingly.
Creating and Using a Variable
- Button 1: Move forward
- Button 2: Move backward
- When Buttons 1-2 are released: Stop
Change the Speed
Wheels
- Button 1: Move forward
- Button 2: Move backward
- When Buttons 1-2 are released: Stop
Speed Adjustment
- button 5: Increase 'Speed' variable by 1
- Button 6: Decrease 'Speed' variable by 1
To increase or decrease the variable value, use the ‘Change Variable’ block. To increase the variable by 1, enter ‘1’, and to decrease it by 1, enter ‘-1’.
Limit the Speed
Wheels
- Button 1: Move forward
- Button 2: Move backward
- When Buttons 1-2 are released: Stop
Speed Adjustment
- button 5: If 'Speed' variable is less than 20, increase by 1
- Button 6: If 'Speed' variable is greater than 0, decrease by 1
To check both if the 5th button is pressed and if the ‘Speed’ variable is less than 20 simultaneously, use the ‘AND’ operation block.
3) Controlling the Alligator with the Remote Control
Limit the Speed
Wheels
- Button 1: Move forward
- Button 2: Move backward
- When Buttons 1-2 are released: Stop
Alligator’s Mouth
- button 1: Open the alligator's mouth (Servo motor angle 90)
- When button 1 is released: Close the alligator's mouth (Servo motor angle 60)
Speed Adjustment
- button 5: If 'Speed' variable is less than 20, increase by 1
- Button 6: If 'Speed' variable is greater than 0, decrease by 1
4. Troubleshooting Robot Issues
1) When the Power Does Not Turn On
- Ensure the batteries are inserted with the correct polarity, matching the ‘+’ and ‘-‘ signs.
- Inspect the battery pack cable for any breaks or disconnections.
- Ensure that the battery pack cables are securely connected to the 6V, 12V power connector on the CPU board.
2) When the Remote Control is Not Working
3) When the DC Motor Does Not Rotate / Rotates in the Wrong Direction
- Ensure that the motor cables are correctly connected to the motor port.
- Check the motor cables for any signs of disconnection or damage.
- Confirm that the motor cables are inserted vertically into the motor ports on the CPU board. If connected horizontally, the motor may not rotate.
- Ensure the black wire of the motor cable is aligned with the arrow on the CPU board case. If connected in reverse, the DC motor will rotate in the opposite direction.
- If the DC motor driver board is not inserted according to the assembly diagram, do not turn on the power. Insert it correctly as per the assembly diagram to avoid overheating risks during operation.
- If the DC motor driver board is not inserted, place it properly and then turn on the power to check the operation.
4) When the Servo Motor is Not Functioning Properly
- Ensure that the 3-PIN cable is connected to the correct OUT port.
- Verify that the black wire of the servo motor cable is plugged in the direction of the arrow on the CPU board case.
- Connect the cable so that the black wire aligns with the arrow on the CPU board.
- Ensure that the direction of the servo motor label in the assembled robot matches the assembly diagram. If the label is oriented incorrectly, the servo motor may operate in reverse, or the angle may be incorrect, posing a risk of gear damage.
5) When the LED is Not Functioning Properly
- Ensure that the 3-PIN cable is connected to the correct OUT port.
- Verify that the black wire of the 3-PIN cable is plugged into the side of the LED pin with the white line.
- Confirm that the black wire of the 3-PIN cable is connected in the direction of the arrow on the CPU board case.
6) When the Robot Operates Abnormally
- Ensure that the direction of the DC motor shaft in the assembled robot matches the assembly diagram. Incorrect assembly of the motor shaft may cause the robot wheels to get stuck on the frame and malfunction.
- Check that the cables are not caught in the drivetrain. If the cables are entangled with the drivetrain, the robot may not function properly.