Turbulence free cover for barometer

thingiverse

I have been trying to install an external barometer on my racing quad, and I've finally made a design that shields the barometer from turbulence caused by the propeller and wind outside. This special cover only makes contact with atmospheric air through a zigzagging line, which eliminates all types of air movement. In a video showing the instructions for assembling the barometer setup, I also compare the performance of three different barometers: BMP180, BMP280, and MS5611. Among these, BMP180 is the cheapest, while MS5611 is almost ten times more expensive than the other two. Once shielded using this same type of cover, each barometer unit was soldered onto my racing drone (F4 flight controller). I quickly showed how to set up each barometer in BetaFlight and made a quick observation on my computer. The drone was then taken outside for testing in real flying conditions. Among the three, BMP180 performed the worst in terms of drifting, with altitude drift occurring very rapidly without any movement. BMP280 drifted slower but exhibited similar behavior to BMP180. MS5611, being the most expensive of the three, performed the best, showing very little drift in altitude when viewed through FPV goggles. After flying my quadcopter up and down a few times, the landing spot was very close to the takeoff spot, with the altitude returning to the same level each time. To conclude, MS5611 is the clear winner. Here's the link to the instructional video: https://youtu.be/CvRgalu_yx4. You can also purchase MS5611 barometer at these links: https://www.amazon.com/gp/product/B01JYHDXIA or https://www.aliexpress.com/item/Free-shipping-GY-63-MS5611-01BA03-precision-MS5611-pressure-sensor-module-height-sensor-module/1872396940.html.