Electronic – Toggle Switch to swap the connections of two buttons

switches

I am trying to mod my arcade stick so I can switch two commonly swapped buttons on the controller.

Essentially they are simple 2 terminal momentary switches connected directly to the controller PCB. I would like to switch their responsibilities, so in my case the Back button and the LB button on the XBox pcb I would like to swap so the Back actuates the LB button on the PCB and the LB actuates the Back button.

My assumption is that I would need a switch with 8 terminals, 4 in 4 out.

What type of switch am I looking for?

Best Answer

If the two existing buttons do not share a common GND connection then you will need a four pole double pole (4PDT) toggle switch. Such switch has twelve terminals.

If the two existing buttons share a common GND then you can get by with a double pole double throw (DPDT) switch. That switch will have six terminals.

Here is how you would connect the button flipper switch when a common GND is in place.

enter image description here

If the two switches do not share a common GND then you would use the 4PDT switch and basically duplicate the above circuit on the switch for the other sides of each button.

Related Solutions

Switch lamp with two serial switches

Indeed, you need to at the very least replace the circuit breaker to some sort of signal instead, as otherwise you wont be able to power the lamp. If you were to send the signal as a brief lack of power, you need some to make some bi-stable circuit in the lamp to do the switching.

I would recommend using a micro-controller and bi-stable relay. I would power the µC from a diode bridge and a capacitor, and use the EEPROM to remember the state of the device, and use the brownout/power reset to trigger a switch, i.e. to actuate the relay.

Now any simple push-button in a series chain (i.e. both your wall button and cable button) will trigger a toggle.

I hope you have space for a relay in your lamp-side circuit, as switching mains AC in any other way will be much more complicated...

Electronic – Emulating a switch with open drain outputs

Since you'll be driving the switches with an MCU, the 2003's inversion won't matter, so it looks to me:

                 Vce   Vcc    IC           $/pkg   $/dev
                  V     V     mA   n/pkg   DKEY1   DKEY1
              |------|-----|-----|-------|-------|-------|      
     ULN2003     50     0    500     7     0.59    0.084
     74LVC07     6.5   6.5    50     6     0.45    0.075

like the extra penny per device for the 2003 is well worth its extra robustness and versatility.

Here are the data sheets for the ULN2003 and for the 74LVC07.

Best Answer

Related Solutions

Switch lamp with two serial switches

Electronic – Emulating a switch with open drain outputs

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