Airspeed sensor designed for use on slow flying UAVs.
Designed by ThunderFly in Czechia
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What is it? The sensor works on the principle of the Venturi effect. In addition to airspeed measurement, it contains an IMU unit. The sensor can also function as an external magnetometer. Why did yo…
Read More…The sensor works on the principle of the Venturi effect. In addition to airspeed measurement, it contains an IMU unit. The sensor can also function as an external magnetometer.
We designed the TFSLOT sensor because we needed a reliable airspeed sensor for our drones and we were not satisfied with the solutions already available on the market. Drones are usually equipped with Pitot tubes that face many problems. TFSLOT sensor is designed precisely to overcome these problems.
TFSLOT offers an innovative way to measure airspeed, which is especially suitable for slow-flying drones.
The design brings several advantages when used on small-scale and slow-flying UAVs
Another special function of the TFSLOT sensor is the integrated 9-axis IMU unit (magnetometer, accelerometer, and gyroscope). The sensor can be used as an external compass for the autopilot and it can improve the estimation of orientation in space. Accelerometer data, on the other hand, can be used to check vibrations.
TFSLOT (PCB board TFASPDIMU02A) is currently supported by PX4 autopilot, where it can be used as an airspeed sensor and as an external IMU unit (external compass). Instructions on how to get this sensor to work with the PX4 autopilot can be found in the official PX4 documentation
TFSLOT is also hardware compatible with other autopilots (Ardupilot), but it does not currently contain a calculation for converting differential pressure to airspeed.
If you need an airspeed sensor for other uses, it can be very easily connected to any computer with an i2c interface (for example RaspberryPi or a generic desktop with a USB to I2C converter - for example, USBI2C01A). The value of the differential pressure or values from the IMU unit can then be read, for example, by a python script.
The product is assembled and ready to use.
I2C cables for connecting to the autopilot are not included in the package. You will need to purchase the cables separately from our tindie catalog. We offer high-quality cables that are compatible with the Pixhawk standard and with a ThunderFly color scheme for easy signal identification. Our cables are specifically designed with improved resistance to electromagnetic interference and a silicone insulator that makes them highly flexible.
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