rockingMotorcycle

An accelerometer triggered sound and light generator for rocking motorcycles. Developed with python and a raspberry pi zero

Todo

• Add button that changes the volume on a single press and restarts the app on a long press
• Add a led strip that has at least two modes:
  • Idle mode: Fading in and out
  • LED chase where the speed can be changed
• Add a status led which display the status of the app and gives feedback when pressing the button
• Add a audio system that can play audio files in a loop and switch to another track immediately
• Combine everything in a game with the following gameplay

Mode	Audio	LED	Trigger
STARTING	Motorcycle starts engine	Bright flash	when app starts
IDLE	Motorcycle is neutral gear	slow fading	after STARTING or BREAKING mode
ACCELERATE	Motorcycle is geeting more speed	LED chase is starting and getting faster	Accelerometer detects movement
RUNNING	Motorcycle is driving	LED chase at high speed	Accelerometer continues detecting movement
DEACCELERATE	Motorcycle is slowing down	LED chase is slowing down	Accelerometer does detect less movement

How to install rockingMototcycle

Check if you have python3 installed

links

https://www.stuffaboutcode.com/2012/06/raspberry-pi-run-program-at-start-up.html https://raspberrypi.stackexchange.com/questions/37920/how-do-i-set-up-networking-wifi-static-ip-address/74428#74428

Install guide

Setup pi

1. Flash a new raspbian lite
2. Before putting the sdcard into the raspi, create a empty file "ssh"
3. Create a new file "wpa_supplicant.conf" with the wifi settings:
   • ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev network={ ssid="" psk="" key_mgmt=WPA-PSK }

Install Adafruit_Python_GPIO

• sudo apt-get update
• sudo apt-get install build-essential python3-pip python3-dev python3-smbus python3-setuptools git -y
• git clone https://github.com/adafruit/Adafruit_Python_GPIO.git
• cd Adafruit_Python_GPIO
• sudo python3 setup.py install
• Activate the i2c bus with the raspi-config tool:
  • sudo raspi-config
  • select Interfacing Options
  • Select I2C
  • Select yes and ok
• check imu address:
  • sudo i2cdetect -y 1

Install Lib for alternative 6dof sensor lsm303d

• sudo pip3 install lsm303d

Install NeoPixel

• cd ~
• sudo apt-get install gcc make scons swig -y
• git clone https://github.com/jgarff/rpi_ws281x
• cd rpi_ws281x/
• sudo scons
• cd python
• sudo pip3 install rpi_ws281x
• sudo python3 setup.py build
• sudo python3 setup.py install

Installation of Wiring pi

• cd ~

• git clone git://git.drogon.net/wiringPi

• cd wiringPi

• ./build

• Test Wiring pi

  • gpio -v
  • gpio readall

• cd ~/rockingMotorcycle

• gcc -o gpio_alt gpio_alt.c

• sudo chown root:root gpio_alt

• sudo chmod u+s gpio_alt

• sudo mv gpio_alt /usr/local/bin/

• enable audio on rapsi:

  • sudo raspi-config
    • Advanced options
    • Audio
    • Force 3.5mm (Headphone)
    • Finish
  • test audio:
    • aplay audio/h_start.wav
    • set audio volume via alsamixer

• set gpio alt automatically:

  • sudo chmod +x /home/pi/rockingMotorcycle/pwmaudio.sh
  • sudo cp /home/pi/rockingMotorcycle/pwmaudio.service /lib/systemd/system/pwmaudio.service
  • sudo systemctl enable pwmaudio.service
  • sudo systemctl start pwmaudio.service

Install pygame

• sudo python3 -m pip install -U pygame --user
• sudo apt-get install libsdl1.2debian libasound2-dev libsdl-mixer1.2 python-alsaaudio -y
• cd ~
• git clone https://github.com/larsimmisch/pyalsaaudio.git
• cd pyalsaaudio/
• sudo python3 setup.py build
• sudo python3 setup.py install

install rocking game

• sudo apt-get install python3-rpi.gpio daemon -y

• sudo cp /home/pi/rockingMotorcycle/rockinggame.service /lib/systemd/system/rockinggame.service

• sudo chmod 644 /lib/systemd/system/rockinggame.service

• sudo systemctl daemon-reload

• sudo systemctl enable rockinggame.service or

• sudo cp /home/pi/rockingMotorcycle/rockinggame /etc/init.d/rockinggame

• sudo chmod 755 /etc/init.d/rockinggame

• sudo update-rc.d rockinggame defaults