simple case 2 for Pygamer(audio Vol+)

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simple case 2 for Pygamer(audio Vol+) This thing was designed based on "simple case for Pygamer" (thing:3654450). A variable resistor adds the ability to adjust the speaker volume. However, a dummy plug must be inserted into the earphone jack. Therefore, the earphones can not be used. This thing needs a few modifications to the Pygamer board. This modification is experimental. I am not responsible for any damage to Pygamer due to this modification or the work process of the modification. Please work on your own responsibility taking into consideration the appropriateness of this modification and the selection of parts. -requirement Piece of universal board ...It requires a 20x14mm(t=1.6mm) size universal board, as shown in the picture. Dial-type variable resistance. ...As shown in the picture, the diameter of the dial is 16 mm, and 50k - 100kΩ will be suitable. Double-sided adhesive tape ...Adhesive tape can be a good help when fitting the universal board into the case. -CAD file pgm158spk45_.stp (.123dx) -STL files pgm158spk045b.stl pgm158spk045c.stl dummyplug01.stl -About volume control Pygamer has a jack for earphones. Usually, the speaker is the audio output destination via an audio amplifier. When the earphone plug is inserted into the jack, the amplifier (and speaker) are disconnected from the audio signal, and the earphone becomes an audio output destination. If a dummy plug is inserted instead of the earphone plug, the audio signal is not connected anywhere. In that state, if the audio signal is connected to the amplifier through a variable resistor, the volume can be controlled. The schematic shown in the picture and the example of wiring realize that for the above. The circuit diagram was referenced from Pygamer's document, "Primary Guide: Introducing Adafruit PyGamer" ( Schematic... https://learn.adafruit.com/adafruit-pygamer/downloads ) -A note about this mod As shown in the photo, please set the thickness of the unit placed by arranging variable resistance on the universal board about 5.2 mm or less. The wires around the earphone jack require soldering with a very narrow gap. Be careful not to damage the parts around it.