ZS-28 is the control system of the Erko unmanned aerial vehicle (UAV) developed by Vietnamese company, Erkotech. It is an autopilot system designed to enable users to control UAVs with ease. It features multiple sensors such as a barometer, compass, gyroscope, and accelerometer, as well as a microcontroller and two embedded processors. The controller also provides advanced flight control, stabilizing and speed control functionality, as well as advanced flight tracking technology. The system can also be used to autonomous missions, as it supports a number of operating modes including GPS waypoint navigation, flight following, autonomous return home, and autonomous landings. It also supports real-time telemetry and feedback, allowing users to monitor their UAV's performance from afar.