Lanna Chalnai Farm is located at 37/6 Moo 14, Don Ko Ka Subdistrict, Bang Nam Priao District, Chachoengsao Province. It is another agricultural learning attraction in Don Ko Ka Subdistrict. This farm applies the modern principles and technology in order to manages the homestay and farming also. The modern principles and technology is applied in order to reduce the use of labor and increase the household income which lead to sustainable business development, and bring the farming to the new era of agriculture 4.0 according to the government's policy by the new generation (Samart Farm). Lanna Chalnai Farm also apply the sufficiency economy principles in all activities in the farm, and became the National Research Center for Microelectronics and Computer Technology, Ministry of Science.