Sos button project

Community Projects
1

Hi everybody, I’m new on this forum. I’m a student in Italy, I like electronic and programming but I’ve no experience in it.

I’m trying to figure out how to do a prototype for my school project; make a very small SOS button that starts a call/send sms from a smartphone.

I found the sparkfun esp32 and seem it could suits my idea. Than my question starts:

  1. I saw that it could be powered by lipo battery, that’s cool, but I need to have a small battery, like 3.3 v coin cell battery, and i wonder if it’s possible.

  2. Which others components I need to?

-FTDI is integrated, right?

-Perf board? LM317? Capacitors? Bergstik? Push button? Some wires? …

I really need a list, because I can’t understand it :frowning:

  1. Is this project possible? Can this module connect with smartphone to remote control it, or only vice-versa?

Ok, this is my main questions about hardware part. Then, I know, there is the programming part with software Arduino IDE or similar… but for now, I need to focus on this first part. Thank you so much for your time, I really appreciate help. Have a nice day :wink:

Edoardo

2

I seriously doubt that a coil cell battery will be sufficient to power your project.

this article https://www.sparkfun.com/news/2017 says “in my experience, it needs a pretty hefty supply”.

3

Uh, this could be a problem, do you know other small way to power up it?

About other components?

Thank you so much