36
Why the Ranger cannot avoid objects in object avoidance
mode
A.
Check wiring. The default setting for Ranger object avoidance mode is that the ultrasonic
sensor connects to Port 10 on Auriga port.
B.
Download and install the latest version mBlock software, then
for
Ranger.
C.
Test if the Ultrasonic sensor is defective.
How to test if the ultrasonic sensor is defective?
1. Download and install the latest version of Makeblock software on your PC. If you have a Mac,
then you also need to install a driver.
2. Connect Ranger with PC via USB.
3. Make sure the ultrasonic module is connected to Port 10 (required). You should feel a slight
click when the RJ 25 cable is properly inserted.
4. Check whether the red indicator of the ultrasonic module is on. If not, the problem is caused
by wiring.
5.
6. Try to run this program, and move your hand in front of the ultrasonic sensor.
7. If the panda doesn't say an ever-changing number, try to change another RJ 25 cable to
connect the ultrasonic sensor and the Port 9. Then try to repeat the above instruction 3-6.
8. If the step 7 doesn't work for you either, attach the RJ25 cable with the ultrasonic sensor with
port 8. Then try to run the program example, but choose "ultrasonic sensor Port 8 distance"
this time.
9. If the panda does say ever-changing number, please reset default program for Ranger, then try
the obstacle avoidance mode again.
Summary of Contents for mBot
Page 43: ...43 Solution Connect Ranger to PC open mBlock 3 or 5 and do reset default program...
Page 52: ...52...
Page 61: ...61 5 Upload the program to the Robot and see if it can be upload successfully...
Page 67: ...67...
Page 93: ...93...
Page 95: ...95 3 Select Enter mLaser...
Page 96: ...96 4 Go to the language setting at the top right corner...
Page 102: ...102 Figure 4...
Page 108: ...108 Situation 2 wrong size proportion in X axis and Y axis Troubleshooting...
Page 111: ...111 Note It is important to check which slot the limit switch connects...
Page 116: ...116 Note Do not connect laser directly to 12V for a long time...
Page 119: ...119...