nextmetro
Next DC Metro from Wiehle-Reston East Station
TODO Write up notes on configuring Raspberry Pi, required hardware etc.
TODO:
- Auto login as root
- Configure wifi
- Set WMATA_API_KEY
- Install Python dependencies
- Install Python code
- Set to run on boot
- Test
AUTO LOGIN:
sudo vi /etc/inittab
Find:
1:2345:respawn:/sbin/getty —noclear 38400 tty1
comment it out #
Add below:
1:2345:respawn:/bin/login -f pi tty1 </dev/tty1 >/dev/tty1 2>&1
Save, exit, reboot to check
CONFIGURE WIFI:
(assuming root login, pi booted with wifi adapter plugged in)
vi /etc/network/interfaces
Should look like:
auto lo
iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
Save and exit.
(assuming root login)
vi /etc/wpa_supplicant/wpa_supplicant.conf
assuming WPA2 setup...
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid=“NETWORK SSID"
psk=“NETWORK PASSWORD"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
auth_alg=OPEN
}
Save, exit reboot
Once rebooted, test:
ping google.com
Should return pings.
SET WMATA API KEY
As root:
vi ~/.profile
Add line at the bottom:
export WMATA_API_KEY=your_api_key
Save and exit.
Reboot. When logged in as root test, by:
echo $WMATA_API_KEY
Should return your key.
INSTALL PYTHON DEPENDENCIES:
(as root)
apt-get update
apt-get install python-pip
apt-get install python-dev
pip install requests
pip install schedule
pip install unicornhat
INSTALL UNICORN HAT STUFF
get their github run install script
INSTALL PYTHON CODE:
(as root)
cd
git clone https://github.com/simonprickett/nextmetro.git
TEST:
(attach unicorn hat)
(as root)
cd ~/nextmetro
python nextmetro.py
AUTO RUN ON BOOT:
As root
Add to ~/.profile:
/usr/bin/python /root/nextmetro/nextmetro.py