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    Help needed for a Handheld Project

    Scheduled Pinned Locked Moved Projects and Themes
    controllerteensypcbbuttonswires
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    • JiehfengJ
      Jiehfeng @moosepr
      last edited by

      @moosepr Brilliant, thank you so much. So basically, in my handheld I'll be cutting squares from the PCB to mount buttons on them. Then connect all the ground pins with wires all going into one wire connected to the ground?
      How do I connect the analog stick? In the OP I got a Wii U analog stick which already seems to have a PCB. It has 4 pins, I'm thinking it uses Red, Black, Yellow, and White wires, how do I connect those?

      alt text

      mooseprM 2 Replies Last reply Reply Quote 0
      • mooseprM
        moosepr @Jiehfeng
        last edited by

        @Jiehfeng your analog stick seems to have 5 pins. They normally work like variable resistors, which have 3 pins. One will be connected to +ve, one to -ve, and the this is connected somewhere in between. Your teensy will measure the voltage from the middle pin, which will change depending on it angle of the stick.

        https://www.arduino.cc/en/Tutorial/AnalogInput

        You will basically have 1 analog input for each stick direction.

        want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

        1 Reply Last reply Reply Quote 1
        • mooseprM
          moosepr @Jiehfeng
          last edited by

          @Jiehfeng

          stix

          want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

          JiehfengJ 1 Reply Last reply Reply Quote 1
          • JiehfengJ
            Jiehfeng @moosepr
            last edited by

            @moosepr What is +ve or -ve? Or where is that?

            alt text

            So to put it in perspective, what colour wires do I wire exactly from the 5 pins to the Teensy LC? (kinda noob so don't understand yet)

            JiehfengJ 1 Reply Last reply Reply Quote 0
            • JiehfengJ
              Jiehfeng @Jiehfeng
              last edited by

              @Jiehfeng That arduino tutorial has many different parts I don't have, so I don't really know how to understand it with my own parts.

              mooseprM 1 Reply Last reply Reply Quote 0
              • mooseprM
                moosepr @Jiehfeng
                last edited by

                @Jiehfeng ah sorry, on the sticks, +ve is the pwr and -ve is the gnd. Connecting to the teensy you will want to connect the pwr pin on the stick to the 3.3v on the teensy, and gnd to gnd.

                you will then want to connect the dir pins (dirH and dirV), into analog pins on the teensy (they are the a0-a9 pins). and for a final bonus, you could attach the click pin from the sticks into any of the digital pins (the grey ones on the diagram) you could always assign them to start/select so you dont need the extra buttons

                your code on the teensy will then read the voltage from the analog pins, which will range from 0 to 3.3v over the range of movement of the stick

                want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                JiehfengJ 1 Reply Last reply Reply Quote 1
                • JiehfengJ
                  Jiehfeng @moosepr
                  last edited by Jiehfeng

                  @moosepr Thanks a bunch, that's 90% of the info I need to finish my project. The other 10% is the wires. I understand completely where the pins connect to the teensy, but what colour wires for what pins?

                  GND - Black
                  PWR - Red
                  Dir H - Yellow?
                  Dir V - Green?
                  Click - White?

                  Do buttons use red or white wire?

                  mooseprM 1 Reply Last reply Reply Quote 0
                  • mooseprM
                    moosepr @Jiehfeng
                    last edited by moosepr

                    @Jiehfeng technically speaking, the colour of the wires is irrelevant. as long as you know what colour does what, your golden. Most people do tend to stick with red for power, and black for ground, but nothing is set in stone

                    want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                    1 Reply Last reply Reply Quote 1
                    • JiehfengJ
                      Jiehfeng
                      last edited by

                      Hey, I just got the Teensy LC with a few momentary push button switches. I put a button onto the PCB and soldered it on, then put a red wire to the top left pin and the black wire to the bottom left pin (soldered), and connected the black to the GND on the Teensy and the red to the 0 digital pin.
                      But for some reason my button isn't working? I tried the basic example and button example on teensyduino but the button won't respond.

                      mooseprM 1 Reply Last reply Reply Quote 0
                      • mooseprM
                        moosepr @Jiehfeng
                        last edited by

                        @Jiehfeng do you have access to a multimeter?

                        On the push buttons, there are normally 4 pins, but some are connected and some switch.

                        linky

                        If you look at the bottom right part of the image, the top 2 pins are always connected together, and the bottom pins are connected together, then all 4 are connected together when the button is pressed

                        want to get a tft into your project, look no further than here https://retropie.org.uk/forum/topic/7464/ili9341-tft-screen-guide

                        JiehfengJ 1 Reply Last reply Reply Quote 0
                        • JiehfengJ
                          Jiehfeng @moosepr
                          last edited by

                          @moosepr No sadly not.
                          I'll try switching the wires up to every possible pin and see if it works. The switch is SPST btw.

                          JiehfengJ 1 Reply Last reply Reply Quote 0
                          • JiehfengJ
                            Jiehfeng @Jiehfeng
                            last edited by

                            @Jiehfeng Just tried with another button, works fine. I guess that button was faulty. Thanks again. :)

                            1 Reply Last reply Reply Quote 0
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