Thermometer, stopwatch, step mash tool, boiling and hop additions controller in a compact instrument !
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If you are a homebrewer, the following videos will be self explanatory ...
KiCAD Project: https://github.com/marcelobarrosalmeida/brewbuddy/tree/master/brew_buddy_hardware/R2
Firmware: https://github.com/marcelobarrosalmeida/brewbuddy/tree/master/brew_buddy
I added more details about screens, temperature conversion and fonts. It may be useful if you want to modify the source code. Please, check the new README.
If you are a 3D expert and wanna help, please contact me. In the next week my new PCBs will arrive and I can ship a complete and working board for those that want to develop or improve the current case.
Hi Folks ! Finally all stuff is online ! Code and PCB at github and some videos here explaining how brewbuddy works. I am still developing the case, the current one is not that good :-/
I had to create a demonstration mode for showing all features of brewbuddy, so it took some time as well.
I hope you enjoy the project !
You need a SWD interface for writing and debugging brewbuddy firmware. I have been using a very inexpensive stlink v2 clone, like this one. Just remove the battery and connect the following lines (there is a connector - J1 - in brewbuddy for this purpose):
- SDIO
- CLK
- GND
- VDD
Reset line is not necessary. However, in your "brew_buddy Config.cfg" file, ensure the line "reset_config none" is present.
The original line, created by the compiler (reset_config srst_only srst_nogate connect_assert_srst) does not work when using stlink clone.
You can use a stm32 discovery as jlink as well. In this case, it is not necessary to change the .cfg and it is recommended to connect the reset line.
The project was developed using KiCAD 4.0.2. All my environment is based on Linux but the project may open in KiCAD for windows as well. Some path adjustments may be required, although.
Marcelo Barros
Gerber Files are not complete. Error received. The board outline layer contains an outline of the PCB area and slots to be milled. It should have an extension like .gml/.gko/.gbr. A board outline is required.