Enthusiast and engineer Nico Hoarder might decide to create what is truly the world’s smallest FPV quadcopter capable of sustained flight. The diameter of the pistons along with the motors is approximately 22.3 millimeters, which makes the drone comparable in size to a coin and almost three times the size of a standard 65mm commercial model.
The latest version was the commercial drone BetaFPV Air65, and now it did not include any key components. At the same time, they have a continuously variable motor, a video player at a frequency of 5.8 GHz and control of the boom using an STM32 G473 microprocessor equipped with a high-speed ICM42688P gyroscope. These Hoarder items will remain in the new branch and should be ready. 3D printing has enabled the radical creation of gaming devices. The frame design was implemented in SolidWorks. The current drone uses a battery and camera with a capacity of up to 25 grams.
Adaptation of electronics to the new configuration involved software changes. The Betaflight Hoarder configurator has corrected the 45 degree error and changed the signal direction of some of the motors to disable the initial instability. Drone launches will likely be demonstrated in the future. Smooth flight similar to the original Air65. Pitch and roll control remains stable, with a slight reduction in cancer sensitivity.
The energy efficiency of the system was considered high: the LAVA 1S battery costs 300 mAh, the last pole was three minutes, which took 30 seconds less than the prototype’s 10 minutes. How practical is this miniature design? limited due to the presence of protective elements and components that require special care during takeoff and landing, the very development of the capabilities of modern amateur engineering.
Source: Tech Cult
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