This is a mini project showing how to build a small device helping you to find your lost keys. It’s working with Bluetooth low energy modules and utilizing ATiny MCU power saving capabilities. It can be also controlled from the mobile phone. I will give you an update as soon I get a Android 4.3+ phone.
Source code here:
To learn more about the Bluetooth modules I am using please watch this playlist:
UART code used from my MIDI device:
Stuff for the HM-10 modules can be found here:
Post time: Jul-28-2017