Quest Controller Rev1 - An escape room controller board

The Quest Controller is a development board for the quick and simple application of electronic props set in escape rooms and art exhibits, and as such allows almost everyone with a little knowledge of Arduino to build and implement hardware components for various uses in Art and Quests, examples can be seen here. 

The board is built around the Arduino Nano Atmega328P so that all of the controller interfaces are accessible, some at designated terminals.
Spectacular user experience requires an impressive soundtrack, so we included a DFPlayer MINI audio module, with a UART interface. The audio files are stored on SD memory card.
Need to control and dim LED`s, maybe electromagnets?
No problem, MOSFETs on board capable of switching up to 2.5A@12V of continuous current, without the need for external heat sink - provides an excellent solution for use in LED operation, and inductive loads such as electromagnets, relays and solenoid valves (with adequate protection).
 

Uncompromising reliability and robustness:

• Onboard capacitors for voltage stabilization and noise filtering for working in electrical noisy environments.

• PTC resettable fuses for short-circuit and over current protections.

• Opto-isolated control lines. Input and output accordingly.

• Reverse polarity protection.

• A Continuous GND layer is used as shield and filtration of EMI.