Here the first Paragliding Computer I've designed :
This is a variometer / gps / sd logger Atmega328p based project :
Components :
- a SD card reader connected through SPI to the arduino
- a Nokia LCD screen connected to SPI
- a BMP180 (pressure sensor) connected through I2C
- a GPS Neo-6M receiver in UART.
The PCB is powerd by a 1s battery + a USB battery charger and a boost module to generate 5V.