Collects telemetry from a model rocket and transmits to a ground station using RF69 long-distance radio.
- two Adafruit Feather M0's with RF95 long-range radio https://www.adafruit.com/product/3178
- one BMP180 pressure sensor https://www.adafruit.com/product/1603
- one ADXL377 high-g accelerometer https://www.adafruit.com/product/1413
- one micro-SD card breakout board https://www.adafruit.com/product/254
- one Estes Loadstar model rocket https://estesrockets.com/product/003227-loadstar-ii/
- one small LiPo battery https://www.adafruit.com/product/1570
I was able to piggyback the pressure sensor and accelerometer directly onto the Feather board, creating a compact package that mounts into the rocket's payload bay using foam blocks for support. I used standard 1/4 wave length of solid-core wire for the antenna, protruding through into the nose cone. Battery lifetime was greater than 24 hours.
Receiver logs data simultaneously to serial output and to an SD card. This receiver is generic: it just listens to the transmitter and records everything it hears, so it can be used for other projects sending different telemetry.