• Temperature control to optimize your brew performance
• Alcohol level estimation
• Pi hosted website to monitor your brew as it progresses
  • Temperature and alcohol level graphs
• Custom logos

Tech

• Raspberry Pi (2 or 3)
• ds18b20 temperature probe(s) amazon
• MQ-3 alcohol sensor aliexpress
• MCP3008 analog to digital converter aliexpress
• USB heat pads amazon
• Beginner electronics kit (for breadboard, wires, etc) amazon

Brewing

• Brew kit (we love Coopers, but there are many others)
• 20L+ container
• Valve seal or cling film
• Bottles/other containers
• Funnel
• Small hose for syphoning (unless your container has a tap)
• Bubble wrap for insulation (optional)

Temperature probe connection tutorial https://www.circuitbasics.com/raspberry-pi-ds18b20-temperature-sensor-tutorial/

1. Enable SPI run command "sudo raspi-config" select interfacing options select SPI

2. Check to see if SPI is activated "lsmod" -> should see something like spi_2835

Install libusb to your Raspberry pi Commands:

• sudo apt-get install libusb-1.0-0-dev

Install uhubctl to your Raspberry pi Commands:

• git clone https://github.com/mvp/uhubctl.git
• cd uhubctl
• make
• sudo cp uhubctl /usr/bin/uhubctl

Permission uhubctl to run without need for sudo

• run command
  • sudo uhubctl
• Note the vid in the lines like this "Current status for hub 1-1 [2109:3431 USB2.0 Hub, USB 2.10, 4 ports]"
• create a permission file with this command
  • sudo vi /etc/udev/rules.d/52-usb.rules
• write a line like this, replacing 2109 with your vid
  • SUBSYSTEM=="usb", ATTR{idVendor}=="2109", MODE="0666"
• type :wq and press enter to save :)
• run command to apply perm or restart the pi
  • sudo udevadm trigger --attr-match=subsystem=usb
• Further documentation, if you need it