(SHARP GP2D15 F 52) was successfully implemented as a backup. This sensor requires a 5V
power supply and outputs a digital signal (0 for non-detection, 1 for detection). Thus, it was very
easy to interface and power it through the GPIO pins on the DE2. The accelerometer was still
chosen as the main option for strumming detection as it provided much more features that can be
used to extend upon this project.
Due to the accelerometer delay, there was not enough time to implement filtering on the
saved .wav files to achieve different octaves. Doing so would have saved much more space in the
SD card. The backup plan implemented was to use an audio editor (Audacity 2.0.3) to change the
frequency of the original files and generate new .wavs to be saved.
Extensions:
For further development, a wireless implementation can be applied for the two gloves via
Bluetooth or some other transmitter. Additional features can include modes for sharp and/or flat
notes, different instrument sounds, and consideration for left-handed players. The accelerometer
has many more features that can be taken advantage of as well. For example, it is capable of
detecting negative and positive acceleration, which can be used to differentiate between an up-
strum and a down-strum. These sound different on a guitar. Future work can aim to
accommodate having multiple note buttons pressed at once. One may wish to also completely
remove the need for tactile sensors and use some sort of resistive or capacitive touch detection.
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