This is a Tool to Control steering and throttle of a R/C car via MQTT with Raspberry Pi 3B.
Table of Contents
Setup Raspberry Pi 3B
- You can read my simple instruction at here.
Build a car
- Hardware is almost same as a Donkey Car.
- I bought below parts. The cost is about $130.
We have several ways to connect Host PC and Raspberry Pi in outside.
- Setting Raspberry Pi as an access point. (documentation)
- Put a smart phone on a R/C car, and tethering both of them.
- Put a mobile wifi router on a R/C car.
Connect to Pi via SSH
After setup access points,
$ sudo ssh firstname.lastname@example.org
Momo is a powerfuil WebRTC Native Client. You can follow my instraction at here.
$ cd ~/ $ git clone https://github.com/shirokunet/RCVehiclePy
Update pip3 (optional)
$ sudo apt-get remove python-pip python3-pip $ wget https://bootstrap.pypa.io/get-pip.py $ sudo python3 get-pip.py
- Python 3.5.x
- numpy 1.16.1
- PyYAML 3.12
$ cd ~/RCVehiclePy/ $ sudo pip3 install -r requirements.txt $ sudo apt-get install python3-numpy $ sudo apt-get install python3-yaml
Check Pi's IP address
$ ifconfig wlan0: flags=4163 mtu 1500 inet xx.xx.xx.xx netmask 255.255.255.0
Setup config file
Then chenge config file
$ cd ~/RCVehiclePy/ $ vi config.yml pi_ip: 'xx.xx.xx.xx'
Lunch MQTT publisher on the Raspberry Pi
$ cd ~/RCVehiclePy/ $ python3 pi_main.py
Set environment on the host PC
Same as the step of the Raspberry Pi.
Lunch MQTT publisher on the host PC
$ cd ~/RCVehiclePy/ $ python3 pc_main.py
Send command to Pi from the host PC
Just push key "UP" or "DOWN" or "LEFT" or "RIGHT" on the terminal.
Type 'Ctrl' + 'c' in both terminals.
This project is licensed under the Apache License 2.0 - see the LICENSE file for details