Recent content by Paul.Ruby

  1. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    As I said at the time, that can be used if you add all the diodes of the original schematic. Order the board from pedal PCB and use that, not my board. Or hand-wire in the diodes on the switch. We're going around in circles.
  2. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    Those won't work. They are not binary encoders, they are pulse encoders. I'll say it again... 8-position, real code, binary encoder.
  3. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    I can't tell from just a picture.
  4. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    That looks like 16-position, not 8, and it is also translating the position to a voltage, so is not suitable. 8-position, real-code rotary encoder is needed. You could use this switch if you remove the PCB and attach direct to the pins, but it will still have 16 positions instead of 8.
  5. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    There is a 4th pin, the common pin. Look at the datasheet.
  6. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    If you add all the diodes in the schematic you showed, you can do it, but that is a mess. A rotary encoder does it directly with simple wiring.
  7. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    No. There isn't a direct mapping to such a switch. Use a rotary encoder.
  8. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    Here's a view of the bottom of the PCB where the eeprom and jumpers are. All the pads on the right side are VCC. Any one of those goes to the common on the rotary encoder. The pads on the left are the individual signals. S0, S1 and S2 go to the other three pins on the rotary encoder.
  9. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    I should add, you cannot use an "8PDT" rotary. It must be a "Real code rotary encoder" which will have 4 pins: Common, 0, 1, 2. Common goes to Vcc, which is all on one side of the jumper header and then S0, S1, S2 to the 0, 1, 2 pins on the encoder. This switch at mouser is an example of such a...
  10. Paul.Ruby

    Alternative PCB for Pythagoras circuit at PCBWay.com

    Those are for jumpers to choose what gets connected, side to side. All the signals (T0, S0, S1, S2) are pulled down to ground with a resistor on the board. Adding a jumper to each will connect them to Vcc. Here's the relevant part of the schematic. You can use a "real-code" rotary encoder with...
  11. Paul.Ruby

    9V protections for projects with a voltage doubler (muzzle, klon...)

    The 2 circuits are redundant. And Absolute max voltage on the regulators is 10V.
  12. Paul.Ruby

    TPA3118 60W Power Amp Module

    Of course not. Minimum is 12V 1A for low power. 19V 3A for driving 4 ohm to full power. 24V 2A for driving 8 ohm.
  13. Paul.Ruby

    TPA3118 60W Power Amp Module

    Yes (Sorry I didn't see this before).
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