Need Advice and Help getting started

Hello!

I am currently a college student working on a prototype for my TECH class. We are trying to create a device that needs to connect to an iPhone (which I am guessing you use Bluetooth) to receive a signal or a message when a button is pressed on the device.

My two questions are: 1. Which Arduino product should I get to complete this project? 2. How would I go about receiving the signal on my phone?

I have a micro bit at the moment but can't seem to figure it out.

Thanks!

I suggest you to use an ESP32 not a Arduino. You can program it using the Arduino IDE and Arduino code, so it's the same as using a Arduino The easiest way I thing should be a webserver and not a bluetooth. The ESP32 as Bluetooth is you want to go that route. You can find a exemple and alter it here: ESP32 DHT