Setting up Optic Flow in INAV   PDF manual by digitalentity

Specifications

• Optical Flow: PMW3901
• Lidar: ST VL53L0X (max. range 2 m)
• Interface UART
• Protocol: MSP
• Working Range: 8cm~200cm
• Field of view: 42 degree(PMW3901), 27 degree(VL53L0X)
• Minimum Illumination >60Lux
• Input voltage: 4.5~5.5V
• Power Consumption: 40mA
• Size: 36*12mm (F051 version),  2g
• Size: 36*13mm (L051 version)  2g

Packing

• Module 3901-L0X,  1pc

Tips

• Make sure Optical Flow lens to ground >2cm for opflow initialization while FC starting up.
• Maximum range of VL53L0X is 2m,   Altitude hold 0~2m @ throttle 0~100% if VL53L0X is enabled.
• Any unused UART of FC supports it
• Sonar connection (Trig & Echo) has not been implemented
• If your flight controller doesn’t have a barometer detected, you won’t be able to select “NAV ALTHOLD” in modes tab.