This project allows for wireless communication between a sender and a receiver. The sender is a smartphone which sends a message through Bluetooth Low Energy technology to an ESP32 board. This board then process the information and encodes the message to Morse Code. A laser is then actuated to send the message.
The receiver is a sort of antenna with a small stepper motor, which allows for automatically pairing with the emitter. A photoresistor captures the Morse Code, and an Arduino decodes it and displays it on an LCD Screen.
- ESP32
- Laser Diode
- Photoresistor (enables pairing detection)
- A smartphone (for Bluetooth communication)
- 3D Printed laser and photoresistor tray
- Arduino UNO
- Laser Diode (enables pairing detection)
- Photoresistor
- LCD Screen
- Stepper Motor
- 3D Printed turret (stepper motor housing)
- 3D Printed laser and photoresistor tray
Programming is done through Platformio on VS Code. It consists of two projects. Parent folder corresponds to the sender (ESP32), and arduino-receiver corresponds to the receiver (Arduino UNO).
3D printed models can be found in the 3DModels folder, and svg files for laser cutting can be found in the LaserCut folder.