NOTE: Ideally, the README.txt will serve as a guide that explains to the public how to execute this project themselves (including Table of contents: what will users find in each project folder?)
- Code for the original Color Commons in 2013: https://gist.github.com/4494118
- tech blog post http://rascalmicro.com/docs/project-light-blades.html
- Lights in lightblades are Lumenpulse Lumenfacade Stand Alone RGB, as described at http://www.bostonlightsource.com/content39128
- Download Raspbian image with OLA added from http://dl.openlighting.org/ Used raspbian-ola-0.9.5.zip
- Power up RPi with USB cable and wall wart.
- Connect to RPi using Putty on COM4 at 115200 bps or
screen /dev/tty.usbserialaskjfhaskjh 115200Physical connection is with a USB cable to a FTDI breakout board to wires to pins 6, 8, 10 on RPi header. - Username is pi; default password is openlighting
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install avahi-daemon # for hostname.local name resolution
Change hostname to colorcommons
sudo vim /etc/hostname
(If this were using Debian Jessie, we would have to modify /etc/dhcpcd.conf, but we're using Wheezy because that's what the OLA build is based on. This means we modify /etc/network/interfaces.)
auto lo
auto eth0
iface lo inet loopback
iface eth0 inet dhcp
#iface eth0 inet static
#address 192.168.0.6
#netmask 255.255.255.0
#network 192.168.0.0
#broadcast 192.168.0.255
#gateway 192.168.0.1
post-up /etc/init.d/olad restart
allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
sudo apt-get install python-flask python-pip python-dev python-webcolors supervisor
sudo pip install uwsgi # Have to install via pip because Debian version is old (1.2.3)
Copy uwsgi.conf from this repo to /etc/supervisor/conf.d/uwsgi.conf
Create a Linode using Debian 8 image.
Set root password in dashboard.
Log in and set GatewayPorts yes in /etc/ssh/sshd_config. This will allow SSH connections to be forwarded through the server.
Create an account with the username sms.
As root:
adduser sms
cd /home/sms
mkdir .ssh
touch .ssh/authorized_keys
chown -R sms:sms /home/sms/.ssh
chmod 0700 /home/sms/.ssh
chmod 0600 /home/sms/.ssh/authorized_keys
Later, you'll add a public key to authorized_keys.
sudo apt-get install autossh
Copy over autossh.conf to /etc/supervisor/conf.d/autossh.conf on Pi.
On Pi, generate SSH keys, by running once: ssh-keygen
Append /root/.ssh/id_rsa.pub to file on remote server: /home/sms/.ssh/authorized_keys
Check that you can log in remotely via SSH from the Pi to the remote server with the username sms like this:
ssh -i /home/pi/.ssh/id_rsa -R *:12345:localhost:8080 sms@45.33.87.121 -N
Along the way, accept the host's public key. If you don't accept the host's public key, autossh will fail.
Ensure that on remote server in /etc/ssh/sshd_config, we have: GatewayPorts yes
Useful debugging commands
root@debian:/home/sms# netstat -lptu
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 *:12345 *:* LISTEN 3765/sshd: sms
tcp 0 0 *:12300 *:* LISTEN 3765/sshd: sms
tcp 0 0 *:ssh *:* LISTEN 3685/sshd
tcp6 0 0 [::]:12345 [::]:* LISTEN 3765/sshd: sms
tcp6 0 0 [::]:12300 [::]:* LISTEN 3765/sshd: sms
tcp6 0 0 [::]:ssh [::]:* LISTEN 3685/sshd
nc -v 45.33.87.121 12345 (tries to open TCP connection, which is first step of HTTP POST)
Copy interfaces to /etc/network/interfaces. The point of this is to add the command post-up /etc/init.d/olad restart to the eth0 section of the file, so that when the eth0 interface comes up, OLA will be restarted and successfully load the sACN plugin. Loading th e sACN plugin fails if the network is not ready when OLA first starts.
sudo adduser pi olad
Log out and back in again.
sh /usr/bin/ola_conf_plugins.sh status all
sh /usr/bin/ola_conf_plugins.sh disable all
sh /usr/bin/ola_conf_plugins.sh status all
Verify that the plugins are all disabled. Then edit /var/lib/ola/conf/ola-e131.conf to set enable = true and set ip = to the address you want to send to.
In the Ola web interface, which should be running on the Pi on port 9090, add a universe named "colorcommons" or whatever other name you like.
Verify that the plugins are all disabled. Then edit /var/lib/ola/conf/ola-uartdmx.conf to set enable = true and set device = /dev/ttyAMA0
sudo raspi-config > Advanced Options > Serial to disable serial console on UART.
Reboot. If needed, you can also restart OLA using sudo service olad restart and see the startup log with tail -n 100 /var/log/syslog
To configure pin 18 on the RPi to go high at boot, which puts the Bitwizard DMX shield into output mode, copy the file set_dmx_mode from this repo to /usr/bin/set_dmx_mode and make it executable with sudo chmod 755 /usr/bin/set_dmx_mode
Then execute that file at boot by putting this line in /etc/rc.local somewhere before the line exit 0
Probably healthy spew from OLA:
Dec 14 10:38:25 colorcommons olad: olad/Olad.cpp:94: OLA Daemon version 0.9.5
Dec 14 10:38:25 colorcommons olad: olad/OlaDaemon.cpp:97: Using configs in /var/lib/ola/conf
Dec 14 10:38:25 colorcommons olad: common/thread/Thread.cpp:190: Thread pref-saver, policy SCHED_OTHER, priority 0
Dec 14 10:38:25 colorcommons olad: olad/OlaServer.cpp:190: Server UID is 7a70:f00a10ac
Dec 14 10:38:25 colorcommons olad: olad/OlaServer.cpp:202: Server instance name is OLA Server
Dec 14 10:38:25 colorcommons olad: olad/Preferences.cpp:408: Missing /var/lib/ola/conf/ola-universe.conf: No such file or directory - this isn't an error, we'll just use the defaults
Dec 14 10:38:25 colorcommons olad: olad/AvahiDiscoveryAgent.cpp:201: Client state changed to AVAHI_CLIENT_S_RUNNING
Dec 14 10:38:25 colorcommons olad: common/thread/Thread.cpp:190: Thread http, policy SCHED_OTHER, priority 0
Dec 14 10:38:25 colorcommons olad: common/http/HTTPServer.cpp:490: HTTP Server started on port 9090
Dec 14 10:38:25 colorcommons olad: olad/AvahiDiscoveryAgent.cpp:236: State for OLA Server._http._tcp,_ola, group 0xd2d7e0 changed to AVAHI_ENTRY_GROUP_UNCOMMITED
Dec 14 10:38:25 colorcommons olad: olad/AvahiDiscoveryAgent.cpp:334: Adding _ola._sub._http._tcp
Dec 14 10:38:25 colorcommons olad: olad/AvahiDiscoveryAgent.cpp:342: Failed to add _ola._sub._http._tcp
Dec 14 10:38:25 colorcommons olad: olad/OlaServer.cpp:473: Updated PID definitions.
Dec 14 10:38:25 colorcommons olad: olad/AvahiDiscoveryAgent.cpp:236: State for OLA Server._http._tcp,_ola, group 0xd2d7e0 changed to AVAHI_ENTRY_GROUP_REGISTERING
Dec 14 10:38:25 colorcommons olad: olad/OlaServer.cpp:481: pid store is at 0xd9abd8
Dec 14 10:38:25 colorcommons olad: common/thread/Thread.cpp:190: Thread signal-thread, policy SCHED_OTHER, priority 0
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping ArtNet because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping Dummy because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping E1.31 (sACN) because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping ESP Net because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping GPIO because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping KarateLight because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping KiNET because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping Milford Instruments because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping Enttec Open DMX because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping Open Pixel Control because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping OSC because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping Renard because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping SandNet because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping ShowNet because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping SPI because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping StageProfi because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping Serial USB because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping USB because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping Pathport because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:73: Skipping FTDI USB DMX because it was disabled
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:104: Trying to start UART native DMX
Dec 14 10:38:25 colorcommons olad: common/io/ExtendedSerial.cpp:69: Port speeds for 22 are 250000 in and 250000 out
Dec 14 10:38:25 colorcommons olad: common/thread/Thread.cpp:190: Thread , policy SCHED_OTHER, priority 0
Dec 14 10:38:25 colorcommons olad: olad/DeviceManager.cpp:105: Installed device: UART native DMX:20-/dev/ttyAMA0
Dec 14 10:38:25 colorcommons olad: olad/PluginManager.cpp:108: Started UART native DMX
Dec 14 10:38:25 colorcommons olad: plugins/uartdmx/UartDmxThread.cpp:136: Granularity for UART thread is GOOD
Dec 14 10:38:25 colorcommons kernel: [ 599.044667] uart-pl011 3f201000.uart: no DMA platform data
Dec 14 10:38:26 colorcommons olad: olad/AvahiDiscoveryAgent.cpp:236: State for OLA Server._http._tcp,_ola, group 0xd2d7e0 changed to AVAHI_ENTRY_GROUP_ESTABLISHED