By no means lose your cellphone once more – Open Electronics
Who has by no means left their cellphone in a single place and realized too late that they’ve misplaced it? On this venture we’ll search for an answer to the issue; each time you might be too far-off out of your cellphone, “Don’t Lose Me” will blink and whistle, in addition to your cellphone will play an annoying sound (or a tune of your alternative).
A Bluetooth connection is established between the cellphone and “Don’t Lose Me” (through the HC05 module). Your cellphone is consistently sending knowledge to an Arduino Nano. When the connection is interrupted it’s for two causes: both you might be too removed from the cellular or you have got pressed the crimson button. In each instances the end result is identical, Arduino receives no knowledge and begins blinking and whistling, your cellphone detects that the information it’s sending has no receiver and consequently it would play an alarm.