Telemega beep volume

[Ric]

I'm having a hard time hearing the beeps while the rocket is on the pad. I've lowered the beep freq but I'd like to increase the volume. Is there a way to do that?

 

[Voyager1]

The EasyMini altimeters are the same with their beepers. I hope you get a solution.

 

[tim cubbedge]

You’ll probably get a quicker response if you post your question in the Altus Metrum community:

https://lists.gag.com/mailman/listinfo/altusmetrum

 

[Ric]

Thx.

 

[Reinhard]

The beeper on the Altus Metrum devices is connected directly to the GPIO of the micro-controller and therefore most likely driven with a fixed amplitude square wave.




There is no way to simply crank up the volume. This would require a redesign of the altimeter. But you can try to find a frequency that you can hear better. The frequency response of the beeper is a good starting point for which frequencies to try, but the end result also depends on your individual hearing and other factors.

Source: https://product.tdk.com/info/en/catalog/datasheets/piezoelectronic_buzzer_ps_en.pdf (page 4).


Maybe there is a company that offers a louder beeper in the same form factor, but this would require soldering too. Besides that, tinkering with the frequency is probably the only thing that can be done.


Reinhard

 

[Ric]

The beeper on the Altus Metrum devices is connected directly to the GPIO of the micro-controller therefore and most likely driven with a square wave.

View attachment 451721


There is no way to simply crank up the volume. This would require a redesign of the altimeter. But you can try to find a frequency that you can hear better. The frequency response of the beeper is a good starting point for which frequencies to try, but the end result also depends on your individual hearing and other factors.
View attachment 451722
Source: https://product.tdk.com/info/en/catalog/datasheets/piezoelectronic_buzzer_ps_en.pdf (page 4).


Maybe there is a company that offers a louder beeper in the same form factor, but this would require soldering too. Besides that, tinkering with the frequency is probably the only thing that can be done.


Reinhard

Thanks. I was afraid that would probably be the answer.

 

[FredT]

I pretty much ignore the beeps. I just check TeleMega status through the AltusDroid app on my phone. Shows me everything I need to know and more than the beeps would tell.

 

[JimJarvis50]

I have the same problem with the EasyMega's, and there is no status signal to check on those. I have tried many things to be able to hear continuity without having to climb a ladder 20+ feet to listen up close. The thing that finally worked was a small FM transmitter taped over the vent hole. I raise the rocket, turn on the altimeter via wifi switch and then listen for the beeps on a portable radio. The FM transmitter has a string attached, and after I hear the beeps, I pull the transmitter off the rocket. This worked perfectly.

Jim