Altimiter using a BMP280 temperature and pressure sensor and a SSD1306 screen on an Arduino Nano
Used libraries:
Adafruit_BMP280, SPI, Wire, Adafruit_GFX, Adafruit_SSD1306, RotaryEncoder,EEPROM, avr/sleep
Project is wired as follows and I am using a 3.7V 2000mAh Li-Po battery
