My grandson's community is surrounded by a chain link fence, 2.4 km in length and he jogs along the perimeter. I bought him a mi band 5 which gives him all the information about his run "after the fact." Since the posts of chain link fence are equidistant, I thought of a way to use them to control his pace.
I want an app which would send his mi band 5 a Bluetooth signal to vibrate whenever he is supposed to arrive at a post. I already have a metronome app which does this, but it's awkward and requires him to calculate the desired pace into a metronome value. My app would have to run in parallel to the mi band 5's running app.
Enclosed is a picture of how the app might look on a cell phone.