Introduction
I built this app for my uncle to solve a problem at his shooting range. Target control machines are usually very expensive, and without one, someone always had to move the targets by hand. To make training easier, I created an app that connects to a controller over Bluetooth and automatically moves the targets. The app also gives audio instructions, plays beeps, and runs different routines depending on the type of competition.
Things I Learned
This is actually the second version of the app—the first was made in Java with Android Studio. For this rewrite, I wanted to try something new and went with Flutter and Dart, which also opens the door to cross-platform support in the future.
Along the way I picked up experience with:
- Bluetooth connections and permissions on modern Android
- Building and installing APKs
- Adding localization (English and Spanish)
- Saving settings in the app
- Exploring newer Android features like predictive back gestures and stricter permissions
Seeing the app control a real piece of hardware in real time was super rewarding—it meant no more manual target handling and a smoother training experience overall.
Screenshots
