The microwave serves as a container of a clue in an Escape Room. This clue
should be located on the turntable. The microwave is locked during the game and can be opened by entering a correct key sequence via the touch control panel.
In the context of this Escape Room, the puzzle of the microwave builds on
the puzzle of a knife block: the sounds emitted by the knife block are to be matched with
the touch keys of the microwave - in this way the correct sequence of keys is to be discovered by one of the players.
Sharp Microwave Silver R270 S/SLM
LM2596S DC-DC Step-Down Voltage regulator
So that one power supply for the entire circuit can be used. Arduino and Raspberry Pi need 5V, whereas the Solenoid needs 12V.
12V power supply DC, 2A
Power supply for all Electronics
Raspberry Pi 4 Model B (4GB)
Communication with the Game-Master via MQTT and the reception of of touch signals, Serial communication with the Arduino UNO
TXS0108E Logic Level Converter
Control of the display (3.3V) with the 5V logic from the Arduino (5V to 3.3V)