Knock-Knock

Overview

Included in: Set B Firmware

Detect a programmable knock pattern using a piezo mic.

Full Guides

Knock Knock Game Configuration

Hardware Requirements

  • Piezo Mic
  • ERT FX12 Signal Amplifier
  • BAC
  • Wiring
  • 12V Supply

Configuration

Input Pin

The pin that the knock sensor is read from. Changing of this value is not currently supported. Input 6 should be wired to the output of the FX12.

Rescale Input

Rescales input to match solve pattern.

Knock Threshold

Percentage value that must be reached to consider a knock valid. Proportional to knock strength. Experiment with your setup to determine a good value.

Knock End Threshold

Percentage value that must be reached to consider a knock ended. Proportional to knock strength. Experiment with your setup to determine a good value.

Timing Tolerance

Percentage value that determines how far off the timing can be of the input compared to the solve pattern. For example, a value of 20 means that the timing can be up to 20% off and still be correct.

Sequence Timeout

The amount of time in milliseconds before the sequence is timed out between knocks.

Learning

Procedure

To learn a new knock pattern, click the "Learn" button on the game settings page. Start a learn sequence by clicking the "Begin Learning" button, knock the desired pattern, and then click the "End Learning" button to save.

Interface

Begin Learning

Used to start learning.

End Learning

Used to finish learning.

Wiring

diagram