Changes

  + 4 x ceramic capacitor 100nF (C1)

  + 4 x ceramic capacitor 100nF (C1)

  + 8 x ceramic capacitor 10nF (c2, c3)

  + 8 x ceramic capacitor 10nF (c2, c3)

  + 4 x 4-pin-row male connector (angle)

  + 4 x 4-pin JST male-angle connector  

[[File:4xcontroller_single_kit.jpg|600px]]

[[File:4xcontroller_single_kit.jpg|600px]]

This components are used to build the 4 controller modules that form the input side of the physical ''Zynthian User Interface''. Each controller embed an incremental rotary encoder and a switch, so 4 wires are needed for connecting it with the RBPi GPIO.

This components are used to build the 4 controller modules that form the input side of the physical ''Zynthian User Interface''. Each controller embed an incremental rotary encoder and a switch, so 4 wires (A,B,SW,GND) are needed for connecting it.

These are the steps for building one module:

These are the steps for building one module:

  0. Be sure that you have read and understdood [[#Some_general_recommendations|these recommendations]].

  0. Be sure that you have read and understdood [[#Some_general_recommendations|these recommendations]].

  1. Bend the encoder's securing tabs to 75º, so you can insert it in the upside of the PCB (the labeled side!). Please, be very careful when bending the tabs as the encoder case is quite fragil and could be deformed. I recommend to use a small plier and not reaching to 90º.

  1. Bend the encoder's securing tabs to 75º, so you can insert it in the upside of the PCB (the labeled side!). Please, be very careful when bending the tabs as the encoder case is quite fragil and could be deformed. I recommend to use a small plier and not reaching to 90º.

  2. Place the 100nF capacitor in C1 position (the most right!). This is for debouncing the push switch.

  2. Place the 100nF capacitor in C1 position (the most right!). This is for debouncing the push switch (SW).

  3. Place the 2 x 10nF capacitors in C2 & C3 positions. These are for debouncing the rotary encoder contacts.

  3. Place the 2 x 10nF capacitors in C2 & C3 positions. These are for debouncing the rotary encoder contacts (A,B).

  3. Solder the encoder and capacitors carefully.

  3. Solder the encoder and capacitors carefully.

  4. Place the pin-row connector in the downside of the PCB, with the angle pins facing inwards (look the photo!)

  4. Place the JST connector in the downside of the PCB, with the angle pins facing inwards (look the photo!)

  5. Solder the pin-row carefully.

  5. Solder the JST connector carefully.

6. Bend the pin-row outwards a little bit, like shown in the photo. You can use a screw-driver or similar to do it.  

  7. Use the plier to close the tabs again, trying to "catch" the PCB.

  7. Use the plier to close the tabs again, trying to "catch" the PCB.