Matek Optical Flow & Lidar Sensor 3901-L0X
£29.90 Inc. VAT
Useful for indoor applications when GPS doesn’t work. This sensor can provide a position lock and altitude hold capability.
Only 1 left in stock|Next shipping: 16/03/2026
Product Discontinued – Limited Stock Remaining.
This sensor works the same way as an optical mouse, helping your iNAV quad maintain position without GPS! It has a working range of up to 2m, and uses a VL53L0X Lidar rangefinder along with a PMW3901 optic flow module. The sensor is connected to your flight controller via a UART and is currently only supported by INAV – other firmware projects like betaflight will support this sensor in the future.
Tips:
- Be sure Optical Flow lens is more than 2cm way from anything for optic flow to initialise correctly 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 yet



- Optical Flow: PMW3901
- Lidar: VL53L0X
- Interface UART
- Protocol: INAV 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: 36x12mm, 2g
Included:
- 1 x Matek Optical Flow & Lidar Sensor – 3901-L0X
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1 review for Matek Optical Flow & Lidar Sensor 3901-L0X
Clear filtersSHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
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Next Dispatch: Mon 16 Mar
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Shipping to the UK
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Verified owner Steve (verified owner) –
Good compact little device, shame it doesn’t work on BetaFlight (Nov 25) yet!