Custom PCBA McNam-wheeled intelligent car ROS robot SLAM Lidar Jetson Nano visual navigation Manufacturer

Mcnem wheelrobot

High configuration version Swing hanging ROS package

High configuration version Independent hanging ROS package

Top plate Swing hanging ROS package

Top plate Independent hanging ROS package

The following is a comparison of different suspensions and models

The store owner has said: in general, college competitions use indepen-dent suspension (the car is equipped with parallelogram suspension), which can not only adapt to uneven ground, but also has the function of shock ab-sorption. It is more suitable than pendulum suspension in the use scene involv-ing image processing and mobile photography. The pendulum suspension (a kind of non independent suspension) can also adapt to uneven ground, but has no damping function. It should be noted that the independent suspensionis more complex, and the spring needs to be adjusted according to different loads. General use, it is recommended to buy swing hanging version. The swing suspension bearing less version simplifies the bearing pedestal and has no alu-minum profile frame. The overall load capacity is relatively low, but the cost performance ratio is relatively high.

High aluminum alloy plate is optional

Default only the first and second layer, if you need more space, you can choose to add high aluminum plate. The mounting holes of the boards can be customized for the second, third and higher layers. If you need to customize, you can negotiate with the customer service about the specific issues and costs. Customized delivery is generally the same day or the next day of delivery.

Independent hanging plate

Swing hanging plate

Swing suspension bearing plate

Interface description

CAN: mobile platform can receive commands from CAN port and send its own data. (odometer and IMU) through CANn port.
Serial port: mobile platform can receive commands from serial port and send its own data (odometer and IMU) through serial port.
USB interface: it is used to connect the computer, download the program with one key, receive the command from the computer, control and send its own data (odometer and IMU) to the serial port.
BT (or WiFi): it can send its own information to APP, receive APP remote control command, and adjust PID parameters.
PS2 interface: provide PS2 handle socket and code plug and play.
SWD interface: provide SWD interface for online debugging.

Open source and algorithm description

Provide the complete source code and master control schematic diagram of mobile platform. Provide detailed communication protocol and De-velopment Manual of the interface. In addition, there are PID Development notes and video tutorials.
Mobile platform is mainly to solve the problem of "making wheels"ir the project. Built in PID closed-loop control and kinematics analysis, can receive commands from serial port, CAN and even notebook.

Some of the robot's functions are as follows

1.Low level ROS serial communication
2.Reserved CAN communication interface
3.IMU and odometer data feedback
4.Battery voltage detection and voltage alarm
5.MPU9250 nine-axis attitude sensor
6.Support serial port one key download
7.A1 radar frequency stepless regulation
8.Gyroscope zero drift clearance
9.Keyboard node control
10.APP gravity sensing control
11.APP adjusts PID parameters
12.OpenCV applications and tutorials
13.Robot dynamic obstacle avoidance
14.Robot fixed point navigation and multi-point navigation
15.TEB and DWA path planning
16.ROS APP diagram transfer and control
17.The Web browser displays the camera image
18.Laser radar mapping navigation
19.RTAB pure visual mapping navigation
20.RTAB Vision + Radar Map Navigation
21.Gmapping built figure
22.Hector built figure
23.Karto built figure
24.Cartographer built figure
25.TensorFlow object recognition
26.Lidar following
27.Depth visual following
28.KCF follow
29.AR tag recognition
30.RGB visual patrol (Fusion Radar Obstacle Avoidance)
31.ROS APP drawing32.ROS APP navigation
33.RRT made its own drawings
34.Multi-robot formation

Introduction to key functions

RTABMAP vision and laser radar mapping navigation

Supports visual SLAM, GMapping, HECTOR, Karto, Google Cartographer and other algorithms for map construction.
Support fixed point navigation, multi-point navigation.
Lidar following
The laser radar can follow any object including people in all directions

Depth camera follow&Visual patrol

With the RGBD Depth Camera, you can measure the distance from the object in front of you and follow it.
The camera can be navigated by sticking lines, general electrical glue can be, the patrol color blue, black, red, green, yellow and other adjustable.

Support APP control, view images, map building, navigation&Independently explore and build maps&Robot formation

APP can control when the camera image is displayed in the phone, with the first Angle of view control
No need to control the car, using the RRT algorithm to independently complete the exploration of map building, save the map, return to the starting point
Multi-robot cooperative operation, distributed formation control, support single point and multi-point navigation function

Provide video tutorials, develop tutorials

1. Provide ROS source package
2. Provide a rich ROS development manual
3. Provide OpenCV introduction and application tutorials in ROS environment
4.ROS basic dry goods special video tutorial
5.STM32 underlying source code and ROS communication video tutorial
6. ROS-related Ubuntu basics
7.ROS feature development code-level video tutorial
8. Electric motor, steering gear, PID and other special video tutorials

Newly launched BT &WiFi version of APP

1. Support gravity induction remote control and two-hand button remote control mode.
2. Support 5-channel waveform display interface, you can view waveform at any time without data line.
3. Support 9-channel parameter adjustment interface, support PID parameteronline adjustment and power down saving.
4. Optimize the electric quantity alarm mechanism, APP accuratelypushes low voltage alarm notification to avoid over-discharge of batteries.
5. Support BLE BT 4.0 module.
6. Support the latest version of Android system.

Coaxial pendulum suspension system

Because three points form a plane, if the bottom plate is rigid, the four-wheel car has an unavoidable problem, easy to appear suspended wheels, unable to normal debugging, not to mention indoor navigation, automatic driving.
Under the premise of aluminum alloy base plate, our car is equipped with coaxial pendulum suspension system, which can adapt to uneven ground.

Support model aircraft remote control

Built-in model remote control interface, plug in model remote control can be normal remote control

Support PS2 wired handle control

Built-in interface and program, can be connected to use

MirCousb data cable is a one-click download

Are you tired of having to plug in the DuPont line every time you adjust the program, modify the Booto Settings and press the reset key and so on. We offer a one-click download capability that allows you to download programs and communicate with the serial port using a MirCousb cable.

Hardware list

Selection of lithium battery power supply with protection

We work with first-line battery suppliers Capacity upgrade to 5000mah Equipped with special charger over discharge, overshoot,short circuit, overvoltage and other multiple protection.

Delivery list

Electric control part

STM32F103RC controller (integrated IMU, CAN, etc.) X1
Dual-channel high-current MOS drives X2
Power transfer version X1
BT Module X1
OLED display X1
5Ah 22.2V lithium battery X1
Electric control part
Lithium battery charger X1 with protection
PS2 wired handle X1
Data download line X1
Ribbon cable X2

ROS part

Raspberry Pi 4B (2G+32G), Jetson Nano B01, Jetson TX2 and other options available
Lidar X1
Depth camera and its Angle adjusting mechanism (optional) X1
32G high-speed memory card X1
Dual Fan Radiator X1 (Raspberry Pi Edition only)
Large volume metal heat sink X1 (Jetson Nano B01 version only)
A number of wire

Note: purchase any package we are assembled and tested good delivery, SF free shipping, to ensure the safety of transportation!

Wooden case shipment - free shipping for SF Express

Sturdy, wear resistant, protective products - express safe, comfortable and assured.