HI,
Firstly I am sorry that my electronics knowledge is pathetic, I have tried reading as much as I can to help myself but I am not getting any luck. So I am hoping someone with more knowledge can help me.
I need a rotary switch to select one of nine tracks on an SD card. So position 1 will play file 1, etc up to 9 files. The board I am using is a ys-m3 v7.6, which has 9 analogue pins that activate a corresponding track when grounded. Simple, when using the breadboard and just grounding the pins but when I insert the rotary switch I doesn't work. I have attached an image of what I mean and how I have wired it (RotarySwitch1). When I turn to position 1 on switch then File001 plays as it should. When I go to position 2 then nothing, but when I move on to position 3 then File002 plays. I have tried both "make before break" and "break before make" switches. If I insert a momentary switch into the design and move switch to position and press the switch then the correct files plays (RorarySwitch2) but I don't want to add a button if I can help it.
It seems to simply want a pulse to ground to work correctly whereas when the switch is in position it is permanently connected to ground. However when I move off to another position it plays the track it should have. I am thinking that this breaks the grounding and hence activates the file.
Would anybody have any advice on how to achieve what I need. Sorry again for my primary school understanding of circuits.
Firstly I am sorry that my electronics knowledge is pathetic, I have tried reading as much as I can to help myself but I am not getting any luck. So I am hoping someone with more knowledge can help me.
I need a rotary switch to select one of nine tracks on an SD card. So position 1 will play file 1, etc up to 9 files. The board I am using is a ys-m3 v7.6, which has 9 analogue pins that activate a corresponding track when grounded. Simple, when using the breadboard and just grounding the pins but when I insert the rotary switch I doesn't work. I have attached an image of what I mean and how I have wired it (RotarySwitch1). When I turn to position 1 on switch then File001 plays as it should. When I go to position 2 then nothing, but when I move on to position 3 then File002 plays. I have tried both "make before break" and "break before make" switches. If I insert a momentary switch into the design and move switch to position and press the switch then the correct files plays (RorarySwitch2) but I don't want to add a button if I can help it.
It seems to simply want a pulse to ground to work correctly whereas when the switch is in position it is permanently connected to ground. However when I move off to another position it plays the track it should have. I am thinking that this breaks the grounding and hence activates the file.
Would anybody have any advice on how to achieve what I need. Sorry again for my primary school understanding of circuits.
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