Indonesia is the largest cassava producer in the world. In 2020, cassava production will be 18.3 million tons. The aim of this research is to find an innovation in the field of cassava processing using environmentally friendly biomass energy. The method used is to design an innovative biomass energy-based cassava drying technology tool using a controlled system. The tool is tested in the laboratory using experimental methods to produce a prototype. tools that can be directly applied in the field. The results of the research showed that the time used during the drying process with variations in the coconut shell mass of 400 grams for 136 minutes, then continued with a mass of 600 grams for 109 minutes had succeeded in obtaining dry cassava products, with an average temperature during drying. room 40 to 60 °C with minimum humidity ranging from 24 to 49 percent. All observation data can be displayed on an LCD screen or computer with controlled features. Conclusion: In the end, this research has applications in the cassava processing industry in every region, both in Indonesia and in any region, offering an innovative approach to biomass energy-based cassava processing technology with controlled features.