Flywoo Firefly 25MINI Walksnail - 3S ELRS

Flywoo Firefly 25MINI is a built drone with digital transmission Walksnail and 2.5" propellers. The diagonal distance between the motors is 122 mm. The drone is suitable for freestyle and calm cinematic flying. The weight without the battery is 110.5 g. Thanks to the efficient 3S drive, it offers a long flight time.

The core of the drone is the AIO board Flywoo GOKU F405 SE 20A, which combines the flight controller and ESC into one. The flight controller uses the STM32F405 processor combined with the ICM42688-P gyro and 8MB black box memory. The board allows the use of Betaflight or INAV firmware. The ESC handles 20 A and 3S LiPo - LiHV power supply. The board offers plug-and-play connectors for GPS, RC receiver, and video transmitter, so later modifications can be done without soldering. The integrated loud buzzer helps to locate the drone in the field.

The digital transmission is managed by the system Walksnail Pro Kit with a single antenna. The video transmitter and antenna are mounted on the top plate, which can be removed with just 4 screws – the same video system can thus be transferred to the Firefly 20PRO frame without soldering. The camera is mounted in an anti-vibration holder with an adjustable angle of 0–25°, which minimizes the jello effect and meets the needs of both calm cinematic and faster freestyle flying. The propulsion is handled by ROBO 1303 6000KV motors combined with three-blade 2520 (2.5") propellers. The bottom plate of the frame is made of 2.5 mm carbon and the front arms have a reinforced one-piece design for higher durability during crashes. Side plastic panels protect the electronics and covered tubes protect the motor cables.

The battery is connected via an XT30 connector. The drone is delivered as BNF with an ELRS 2.4 GHz receiver. 

Recommended are 3S LiPo - LiHV batteries with a capacity of 450–1000 mAh.