A wire-control airsoft gun turret implemented with the listed key parts: ◉ The firing mechanism (gearbox, cylinder, piston) are teared down from HFC mini automatic electric airsoft gun. ◉ Gun orientation is controlled by 2 JX pdi-6221mg-180 servo. ◉ Ammo feeding is implemented with a step motor driven by a4988 module. ◉ Fail to implement the sentry mode with 3 SRF02 ultrasonic rangefinders. ◉ All components above are integrated by firmware implemented in ST STM32F103R8 micro controller.
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