I am doing a project where I need to connect to a phone via BLE on the Particle Boron. I am fairly new to this system and I haven't been able to find a tutorial on the internet. I already looked at the BLE API but I am lost in how I am supposed to make the Boron connect to a device. Could someone point me in the right direction? What code would I write to make the Boron connect and start transferring data?