A mini-array of ASTRI SST-2M Cherenkov telescopes will be deployed soon in a remote site far away from human activities to achieve optimal observation conditions for gamma-ray astronomy. In such a scenario, the capability of each telescope to process its own data before sending them to a central acquisition system provides a key advantage. We implemented the complete analysis chain required by a single telescope on a Jetson TK1 development board, overcoming the required real-time processing speed by more than a factor two, while staying within a very small power budget.