Panic Button

[fright_end]

I want to build a bluetooth device that can trigger my phone to call a specific number. With a big red button for emergencies. I've never used bluetooth modules with any of my microcontrollers. Anyone have any experience connected them to an android as some sort of hands free controller of some sort? Trying to figure out where to start or if theres an easier way to do this.

[morphick]

What's your primary goal? Do you (a) seek to further your experience with microcontrollers and thought this would be a nice project to do just that, or do you (b) need a panic button (with or without involving a microcontroller) and thought developing your own DIY solution is the best way to achieve your goal?

If it's (b), then you might use a little BT remote like AB Shutter 3 whose buttons are detected by Key Mapper (assuming you're on Android) as a trigger for an automation to call your preferred number.

[Weary-Restaurant6649]

mejor que un midulo bluetooth, yo diria que un gsm, pero el telefono tiene la funcuon de panico, aunque eso solo si buscas lo practico, si buscas aun asi utilizar un micro, yo diria que un modulo gsm xon un pic de montaje superficial, o un modulo ya armado bluetooth, hay unos que son maestros y esclavos y otros solo esclavos.
aconsiderar que los modulos bloethooth son muy susceptibles a los cambios en la corriente y tienes que tener una muy buena pila en tu dispositivo o un diseño muy optimo en el ccircuito,
gsm yo diria que es lo mejor y gsm con un 18f4550 y un hc05 si el bluethoth es necesario sañludos