StrangeBrew Elsinore An Opensource Brewery Controller
Strangebrew Elsinore Server
Java Server for Strangebrew Elsinore
The purpose of this project is to create a Java application that can run on small systems such as the RaspberryPi and the Beaglebone series
Since these systems run on Linux, that is a requirement to using this.
The system is based off the Dallas One Wire protocol for the temperature probes (expanding to analogue inputs too), and Straightforward GPIO outputs for SSR control
There’s a few people, without whom this project wouldn’t have gotten this far.
Barry Beadman who came up with the original concept and helped me with the electronic parts of Elsinore at the beginning
Drew Avis Who allowed me to take over StrangeBrew Java.
Jangeeva who provided a lot of debugging help with various issues.
HomeBrewTalk Forums for ongoing support over the time of the project.
Clone this repository:
git clone https://github.com/DougEdey/SB_Elsinore_Server
Move to the checked out Directory:
java -jar Elsinore.jar [options ]
To startup the setup procedure, I am aware that it needs to be improved, if you have any suggestions, please raise a bug Use -help to show the full list of options.
Then check the config file if you want to, then you can copy the new one to the default name
cp rpibrew.cfg.new rpibrew.cfg
And rerun Elsinore to get started
java -jar Elsinore.jar [options]
RaspberryPi or Beagleboard?
The BeagleBoard Black does have a big advantage over the RPi, it has onboard analogue inputs, but these are 1.8V.
The RaspberryPi works fine with the existing software, the only thing you need to do differently is naming the GPIO Pinouts.
Elsinore now supports pumps, you’ll need to add a new section called “pumps” and each pump must be on it’s own line in the form
The buttons will be RED when on, and GRAY when off.
One Wire & OWFS
One Wire is fantastic (in my opinion) each sensor or device has a full 64 bit address, and you don’t have to worry about the order and you can chain them!
One Wire devices can be chained, with only one Pullup resistor before the first connection to a device. I currently have 4 Temperature probes on my circuit, and a ADC, connected using XLR jacks.
OWFS is a much better One Wire Implementation, it is highly recommended to install it, and it is REQUIRED if you use One Wire based Analog inputs (like the DS2450
Install it using your standard package manager, then you need to set a mountpoint up (I use /mnt/1wire) and set
server: w1 in the OWFS configuration File (/etc/owfs.conf by default), you can chose the ports as you want for OWFSHTTP and OWServer, the configuration tool will setup OWFS if it can.
To manually setup OWFS, use the option -owfs when starting up Elsinore
After the incident I decided to add a cutoff temperature, in my case I have a temperature probe on my SSRs, and when they go over a certain temperature I want to kill the server so it doesn’t get badly damaged
cutoff = <string>
To any of the devices, will kill Elsinore when the temperature for that device goes above it.
The String is in the form:
So in the config file below, I can use 85C as a cutoff temperature and it’ll turn off when it goes above 85C
System can be enabled during setup by entering “system” (no quotes) at the prompt.
Also, to enable the System Temperature reading, please add
<general> section of the configuration file.
During setup you can add custom timers, just use:
At the command prompt, if you don’t enter a name it will prompt you for one.
This config file will automatically be parsed and converted to an XML file
``` [general] scale = F #cosm = COSM API KEY #cosm_feed = YOUR COSM FEED
[kettle] set_point = 168.0 duty_cycle = 100.0 cycle_time = 2.0 k_param = 41.0 i_param = 169.0 d_param = 4.0 probe = 28-0000032c449f gpio = GPIO2_1
[mlt] set_point = 0.0 duty_cycle = 0.0 cycle_time = 2.0 k_param = 44.0 i_param = 165.0 d_param = 4.0 probe = 28-0000032c506e gpio =
[pumps] pump_a = GPIO0_8 pump_foo = GPIO0_9 ```
This is a sample Setup file, you can see I have two devices setup here, the MLT is a “read only” probe that doesn’t have a GPIO associated. Whereas the Kettle is setup with default PID values, and has a GPIO pinout of GPIO2_1.
The scale can be changed between C or F to use Celsius or Fahrenheit on the system.