This is a litte private project to create a small, cheap device to emulate the RADAR altimeters found in some aircraft.
- Arduino Nano/Uno board
- Garmin LIDAR Lite v3 module
- Some capacitors (470uF/16V, 10uF/16V)
- One resistor 1kOhm This will give you a "tabletop" prototype. Proper hardware design follows.
- Arduino IDE
- The LIDAR Lite v3 library for Arduino (https://github.com/garmin/LIDARLite\_v3\_Arduino\_Library)
- Arduino Talkie library https://github.com/PaulStoffregen/Talkie/tree/a9949755da3713dee2625cbedb227cd8fd4308b6 (This is the version that I found worked best) Optional (for creating own sound samples):
- MacOS X "say" command
- SOX (Sound Exchange)
- BlueWizard (https://github.com/patrick99e99/BlueWizard) to create new LPC streams from audio samples
1. LIDAR Lite to Arduino Nano RED 5V BLACK GND GREEN A5 (SCL) BLUE A4 (SDA) -Hook up 470uF/16V parallel to 5V and GND (watch the polarity obviously) 2. Sound ______ 10uF Arduino pin 9 -----| 1k |---*---#|-------o ------ | + PC Speaker (Amplified) 1uF + === o --- | | | | | GND ___ ___
Currently this is in trial stage, so I don't have any real world application experience. But basically it is all about mounting the Arduino, Sensors and Power supply on your aeroplane and feed the audio signal to the external in of your radio or into an amplified speaker.