Quantity   Component name
1 × Moteino R4 with RFM69HW 868mhz µC of beacon + TX
1 × Arduino MEGA R3 Main µC for the base
1 × Arduino Nano Servo dedicated µC (could be a mini)
2 × GPS NEO-6M 1 for the base & 1 for the beacon
2 × MS5611 pressure sensor 1 for the base & 1 for the beacon
1 × RFM69HW 868mhz module Used on base to receive beacon data
1 × Lipo battery 2S610mah Power to beacon
1 × Lipo battery 3S 4000mah Power to base
1 × Cheap buttons and switches
1 × OLED 0.96" Display Usefull to output info
1 × PLA 3D printed body I will creat a thingiverse page dedicated