XR-JetbotV2.0 is an entry-level programming AI robot for colleges and universities launched by XiaoR GEEK Technology in 2020. Its main features are as follows:
1.It can use mobile phone to control via wireless WiFi;
2.The robot can collect USB video data and transmit it to the control terminal in real time;
3.Shipping with varieties of playable functions;
4.Provide Python source code for secondary development;
II. List of components
III. Assembly tutorials
1. Installation method of camera bracket
The steps are as follows: pass 3 M3 screws through the camera bracket and connect them to the chassis of the car.
2、Method of antenna installation
The steps are as follows: connect the two antennas and operate as shown:
3.Voice module installation
Step 1: Use an M3 nylon column + an M3 screw nut to fix the voice module on the side wing of PTZ (the left and right sides can be fixed, only one hole is required for the fixed position)
Step 2: Use an M3 nylon column + an M3 screw to fix the horn module on the rear wheel of the car body (the left and right sides can be fixed, only one hole is needed for the fixing position)
IV. Download APP
Jetbot control APP
V. Quick Start
1. Start Jetbot
Press the red power button, the corresponding button light will light up, the fan will start to rotate, and Jetbot will start up.
During the start-up process, the front lights of Jetbot light up in different colors.
After the start, you will hear a buzzer of "BI~~~", indicating that the car program has been started.
2. Connect to mobile phone
First find the id displayed on the OLED screen on the Jetbot car, the id as shown in the figure below is 082c94
Find the WiFi signal of JetbotV2_id:XXXX in the WLAN list of the mobile phone and connect it, XXXX is the id number.
3.Control Jetbot via APP
Open the Jetbot control softwarethe which is installed previously , and select the Jetbot option, then enter the control mode
APP use steps
<1>Video transmission
After entering the control mode, the camera video will be directly loaded in the background of the screen.
<2>Speed adjustment
By checking the speed button, the total speed adjustment appears on the right, and there are 0-10 gears in total for adjustment.
<3>Power display
In addition to displaying battery information on the onboard OLED screen, Jetbot also can display battery information in the upper right corner of the APP control interface.
<4> PTZ control
Jetbot comes with 3 free-speed pan/tilt control. After checking the servo control option, there will be three sliders on the right, which can control the angle of the camera pan/tilt.
<5>Motion control
In addition to the virtual joystick in the lower left corner to control the direction of front and rear, left turn and right turn, Jetbot also can perform left translation and right translation after select the omnidirectional wheel mode.
<6> Obstacle avoidance mode
When Jetbot is in motion, when the ultrasonic obstacle avoidance option is turned on, the car actively brakes and stops when it encounters an obstacle in front.
<7>Horn
Jetbot has an onboard buzzer. After actively pressing the horn button, the buzzer and the horn will ring.
4.Function Description
<1>Object tracking
Enter object tracking mode
Select one of the 5 colors and click the corresponding color (the selected color is displayed in the box on the right) to track.
<2> Colorful Car Lights
Click on the selected color to display the corresponding color lamp.
<3>Object following
Enter the object following
Select the object to follow, such as: follow people, click to start following
Human & object following (object following does not recognize human features, only outlines)
5. PS2 handle connection
When the PS2 handle receiver is not successfully connected with the PS2 handle remote controller, the PS2 handle receiver RX light is blinking, and the PS2 handle remote controller POWER and MODE LED lights are both blinking. Until the PS2 handle receiver is successfully connected with the PS2 handle remote controller, the blinking lights of the two will turn into a constant light state.
PS2 remote controller PS2 receiver
6.Switching of button functions
The four onboard buttons of Jetbot car are yellow, blue, green and red.
Red button: The red button is the power switch button, press it the corresponding indicator light to turn on, and press again to shut down.
Green button: Press the green button and the corresponding indicator light is on. At this time, it is the PS2 handle control mode. You can use the joystick or button on the left side of the PS2 handle to control the Jetbot car to move forward, back, turn left, turn right.
Blue button: Press the blue button and the corresponding indicator light is on. At this time, it is in voice control mode. Say the following command to Jetbot car:
|
Command word |
action |
|
Xiao R |
wake up the voice module |
|
Go forward |
the car goes forward a distance |
|
Go back |
The car goes back a distance |
|
Turn left |
The car turns left at a certain angle |
|
Turn right |
The car turns right at a certain angle |
|
Turn on the lights |
The front lights of the car are all on |
|
Turn off the lights |
The front lights of the car are all off |
Yellow button: Press the yellow button and the corresponding indicator light is on, and it is APP control mode at this time.
VI. FAQ Q&A
Q: There is no WiFi signal after turning on the power and waiting for 150S?
A: Please make sure you insert an SD card into the Jetson nao motherboard; if there is still no signal after inserting the SD card, the system may be damaged. Just follow the tutorial and reload the SD card with the factory firmware.
Q: Video transmission is very stuck when running object following or color tracking.
A: Jetbot will start the relevant algorithm library when starting the function mode. The temporary use of memory is large, the CPU resource utilization rate increases, and the Jetson Nano motherboard performance is insufficient.
Q: The buzzer will ring from time to time during ultrasonic obstacle avoidance.
A: When the ultrasonic obstacle avoidance is activated, the buzzer alarm if there is an obstacle in the front. Due to the jitter of the vehicle and the drift of ultrasonic measurement data, the obstacle alarm will be triggered occasionally.
Q: Suddenly lose control
A: Please confirm whether the WIFI is disconnected between the mobile phone and the car, and whether the distance is too long between the mobile phone and the car.
VII. TECHNICAL SUPPORT
XiaoR GEEK pays great attention to the user experience and provides certain technical support. If you have any product questions after purchasing the product, please contact us in time. The contact information is as follows:
1.Tel :+86-0755-28915204
2.WhatsAPP: +8613879477201
3.Email:service@xiaorgeek.com
Working hours: Monday ~ Saturday 09:00~21:00
VIII. About us
Shenzhen XiaoR Geek Technology Co.,Ltd was founded in 2014 .Which is mainly engaged in the first person video control of the robot, it is based on WiFi wireless technology and MCU technology, research and development of smart car and robot teaching kit of solutions. And it is training create electronic laboratory enthusiasts to providing system of robot, hardware and software equipment and training course for domestic colleges and universities.