Documentation and download

This device is a universal box for storing cargo and connecting a removable battery. The box is conditionally divided into the upper part where the battery is contained and the lower part where the cargo is stored. Each of them is fixed with special flags powered by servos. End caps can also be used for more stable operation. The firmware that is presented here uses precisely the end caps. But in principle, control can be carried out directly from the drone controller if the servos are connected directly to it. But it should be remembered that when controlling from a drone, there must be access to this function from the system, otherwise a situation may occur, for example, simultaneous dropping of both cargo and battery or not fixing cargo and battery.
1. The boxing scheme.
2. Firmware for working with end caps.

Link to the firmware