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LCD Display for BierBot Bricks

BierBot Bricks https://bricks.bierbot.com/

LCD Display

Display for visualizatzion of current brew process.

Image of final device

Features:

  • Short overview of current/next step
  • Time information
  • Current Temperature and setpoint

Hardware

Hardware Components

Bill of Material (Conrad Electronic Feb/2022):

  • GEHÄUSE KG 200 Bestell-Nr.: 540986

  • SBH341-1A Enclosed Battery Box 4 x AA Bestell-Nr.: 1672572

  • DRUCKSCHALTER R13-23B-05 SW TASTE TC Bestell-Nr.: 1587699

  • PIEZO-SIGNALGEBER EFH1205 Bestell-Nr.: 2300515

  • LED 10MM KLAR ROT 1000MCD Bestell-Nr.: 1577504

  • Joy-IT LCD Display, 20x4, Blau Bestell-Nr.: 1503752

  • NodeMCU V2 LUA ESP8266 Bestell-Nr.: 1613301

  • Resistor 270 Ohm

Spare part for future extensions:

  • DRUCKTASTER SCHWARZ QUAD Bestell-Nr.: 706175

...Heat shrink tubing, stranded wire, series resistor, solder, soldering iron

Hardware Assembly

Information can be found inside 'img' folder

Software Programming/Loading

Arduino V2.0.0-rc7 (incl. esp32 hardware catalogue and necessary libs)

Three parameters must be updated inside source:

  • Brick API Key
  • Wifi SSID
  • Wifi password

Possible improvements

  • LED and Buzzer included. Can be used for Alarming
  • Implementation of Wifi Manager to avoid hard coded Wifi credentials
  • OTA Programming (if bugs inside Arduino IED are closed)
  • Configuration of Brick API key outside of source