  The Mini-EUSO telescope is designed by the JEM-EUSO Collaboration to observe
the UV emission of the Earth from the vantage point of the International Space
Station (ISS) in low Earth orbit. The main goal of the mission is to map the
Earth in the UV, thus increasing the technological readiness level of future
EUSO experiments and to lay the groundwork for the detection of Extreme Energy
Cosmic Rays (EECRs) from space. Due to its high time resolution of 2.5 us,
Mini-EUSO is capable of detecting a wide range of UV phenomena in the Earth's
atmosphere. In order to maximise the scientific return of the mission, it is
necessary to implement a multi-level trigger logic for data selection over
different timescales. This logic is key to the success of the mission and thus
must be thoroughly tested and carefully integrated into the data processing
system prior to the launch. This article introduces the motivation behind the
trigger design and details the integration and testing of the logic.
