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ESP32 detecting a DC low voltage and being a server

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drjoelleon
(@drjoelleon)
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I have a buzzer that is activated by a low voltage momentary switch. Of course, when the switch is closed, the buzzer sounds and when released, there is no sound. I want to bypass the analog buzzer and send a BLE signal to the iPhone and have the iPhone make the sound. This can then go to the earbuds and have the sound private.

Help

Joel


   
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Will
 Will
(@will)
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What microController do you plan to use ?

Experience is what you get when you don't get what you want.


   
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Ron
 Ron
(@zander)
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@will I think he said he wants to close a contact and emit a BLE signal, not sure a mcontroller is even needed, this unit says no controller needed.

https://www.digikey.ca/en/product-highlight/a/akm-semi/ak1594-bluetooth-low-energy-ble-transmitter

Arduino says and I agree, in general, the const keyword is preferred for defining constants and should be used instead of #define
"Never wrestle with a pig....the pig loves it and you end up covered in mud..." anon
My experience hours are >75,000 and I stopped counting in 2004.
Major Languages - 360 Macro Assembler, Intel Assembler, PLI/1, Pascal, C plus numerous job control and scripting


   
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Will
 Will
(@will)
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Posted by: @zander

@will I think he said he wants to close a contact and emit a BLE signal, not sure a mcontroller is even needed, this unit says no controller needed.

Hey ! Even better ! Thanks Ron.

Experience is what you get when you don't get what you want.


   
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Ron
 Ron
(@zander)
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@will His post is confusing, the Topic is totally different from the body of the post.

Arduino says and I agree, in general, the const keyword is preferred for defining constants and should be used instead of #define
"Never wrestle with a pig....the pig loves it and you end up covered in mud..." anon
My experience hours are >75,000 and I stopped counting in 2004.
Major Languages - 360 Macro Assembler, Intel Assembler, PLI/1, Pascal, C plus numerous job control and scripting


   
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