Server to use the Freshroast SR700 with Artisan (https://artisan-scope.org/). This server simplifies dramatically the setup and the configuration of Artisan (settings are included).
It also allows to fully automate the roasting with users' profiles that can be easily created with another tool (see the end of the document).
If available the Phidget Temperature Sensor can be used to improve the roasting and to measure the true beans temperature.
This work was inspired by the SR700-Artisan-PDServer (https://github.com/infinigrove/SR700-Artisan-PDServer) and freshroastsr700(https://github.com/Roastero/freshroastsr700/tree/master/freshroastsr700).
Python >=2.7
You can use the Python installed with your system, but I strongly suggest to install and use the Anaconda or Miniconda Python 3.7 freely available from here:
On Windows machine unfortunately you have to use speficially Python 3.5 and change the PATH variable
Open the Anaconda Prompt (not the powershell or window cmd!), a terminal will show up.
In the terminal window type:
conda create -n artisan python=3.5 -y
If you have a Phidget temperature sensor, install the Phidget driver for your machine: https://www.phidgets.com/docs/Operating_System_Support
First make sure you are using the correct env with:
conda activate artisan
Open a terminal or the Terminal app (osx) and type this command:
pip install SR700_Artisan_Server
To update from an old version type:
pip install SR700_Artisan_Server==1.7
On a Window machine the procedure is slightly different.
Open the Anaconda Prompt and activate the environment you have created before with:
activate artisan
Then install the Server with:
pip install SR700_Artisan_Server
Check where you have the scripts with:
where Start_SR700_Artisan_Server
This will show where the path of the server and the other scripts, in my machine this returns:
C:\Users\Luca\Miniconda3\envs\artisan\Scripts\Start_SR700_Artisan_Server.exe
Add the first part to your PATH variable i.e.:
C:\Users\Luca\Miniconda3\envs\artisan\Scripts
If you don't know how to do that, check this illustrated guide: https://helpdeskgeek.com/windows-10/add-windows-path-environment-variable/
Close the window.
Important If you are updating the server from an old version (<1.6) please download again and reload the setting file!
Start_SR700_Artisan_Server
If you a a Phidget without an hub, start the server with:
Start_SR700_Artisan_Server --enable_extension phidget_simple
If you a a Phidget with the hub, start the server with:
Start_SR700_Artisan_Server --enable_extension phidget_hub
Depending on your hub setup you may need to change hub port and channel adding these two flags:
--phidget_hub_port PHIDGET_HUB_PORT
--phidget_hub_channel PHIDGET_HUB_CHANNEL
For example, to use the hub port 0 and the channel 1:
Start_SR700_Artisan_Server --enable_extension phidget_hub --phidget_hub_port 0 --phidget_hub_channel 1
If the server is running correctly you should see something like this if you have a Phidget:
[State:idle] Temp SR700:150 Temp Phidget 52 Target temp: 150 Fan Speed: 1 Time left: 0
[State:idle] Temp SR700:150 Temp Phidget 52 Target temp: 150 Fan Speed: 1 Time left: 0
[State:idle] Temp SR700:150 Temp Phidget 52 Target temp: 150 Fan Speed: 1 Time left: 0
[State:idle] Temp SR700:150 Temp Phidget 52 Target temp: 150 Fan Speed: 1 Time left: 0
Or like this without a Phidget:
[State:idle] Temp SR700:150 Target temp: 150 Fan Speed: 1 Time left: 0
[State:idle] Temp SR700:150 Target temp: 150 Fan Speed: 1 Time left: 0
[State:idle] Temp SR700:150 Target temp: 150 Fan Speed: 1 Time left: 0
[State:idle] Temp SR700:150 Target temp: 150 Fan Speed: 1 Time left: 0
If you use a MAX31865, then start the server with:
Start_SR700_Artisan_Server --enable_extension max31865
You should see something like this with the MAX31865:
[ [State:idle](Temp SR700:150)(Temp max31865 119)(Target temp: 449)(Fan Speed: 9)(Time left: 649) ]
If you need to, you can also specify the GPIO pins used by the MAX31865, e.g.
Start_SR700_Artisan_Server --enable_extension max31865 --max_31865_gpio_cs=8 --max_31865_gpio_miso=9 --max_31865_gpio_mosi=10 --max_31865_gpio_clk=11
--pid_mode artisan
This can be combined with all the options above. For example to use the internal temperature prove the command is:
Start_SR700_Artisan_Server --pid_mode artisan
To use the phidget with 1 channell instead:
Start_SR700_Artisan_Server --enable_extension phidget_simple --pid_mode artisan
** NOTE** To use this new function you need to download and load the new setting file available below.
See documentation for freshroastsr700_phidget for more info.
Important if you are on a Mac start Artisan from the Terminal app with these commands:
First make sure you are using the correct env with:
conda activate artisan
Then run:
/Applications/Artisan.app/Contents/MacOS/Artisan
If you want to use the internal PID download and use this file: https://raw.githubusercontent.com/lucapinello/SR700_Artisan_Server/master/SR700_Artisan_Server/settings/artisan-settings.aset
In this case the roasting profiles are created through alarms and a generic profile is already loaded. To create custom profiiles you need to use this software: https://github.com/lucapinello/SR700_Artisan_Profile_Builder
Here you can read how to use the artisan designer:
https://artisan-scope.org/docs/designer/
The fan control is not supported in the Artisan designer so you need to add alarms yuorself
Now you are ready to roast!
Hit Start, and keep in mind that the first 30sec are for preheating the machine.