park-ranger

An example application for TTL sensor, garage parking assistant with TS-7553-V2 and Maxbotix Ultrasonic Rangefinder (HRLV-MaxSonar-EZ1 MB1013). The LCD screen of the TS-7553-V2 enclosure displays range in feet and instructs driver on when to pull forward, slow down, and stop. The sonar sensor is setup to use TTL-level UART by soldering the jumper on the back of the PCB and connected to /dev/ttymxc6 (Pin 10 on the HD1 header, see manual).

Installation

All these steps should be done on the TS-7553-V2 as root.

1. Install cairo dev headers

   apt-get install libcairo2-dev

2. Clone repository

   git clone https://github.com/embeddedTS/park-ranger.git

3. Change into project directory

   cd park-ranger

4. Compile program

   make

5. Install to /usr/local/bin/

   make install

Running

A systemd service file has been provided as an example for starting park-ranger automatically, to be copied to /etc/systemd/system/ and enabled using systemctl enable park-ranger.service. This is how you'd do it manually.

1. Ensure keypad drivers are disabled

   rmmod gpio_keys

   echo “blacklist gpio_keys” > /etc/modprobe.d/fbdev-blacklist.conf

2. Ensure LCD screen drivers have been installed

   modprobe ts-st7565p-fb

3. Setup LCD screen using helper program

   lcd-helper

4. Run the program

   park-ranger