Development of block-based coding teaching tool with agriculture application (Smart farm)

This study aims to build and install an irrigation system for a rectangular vegetable plot at Wat Rang Sanae Nakhon Chan school, Ratchaburi, Thailand. The motion of the water spray nozzle is similar to CNC machines with linear movements in two horizontal directions and it must be easily controlled by block-based coding suitable for Grade 5–6 students. The advantages of block-based controlled irrigation system are to promote teaching and learning in computational science at the elementary level for students to experience tangible programming results which should enhance learning outcome retention. The Smart Farm device performance assessment consists of nozzle head position accuracy, water content accuracy and usability of web interface with the m Block software, all of which have shown satisfactory results during the tests. A survey result taken by teachers and students during an on-site test shows high level of satisfaction in ease of use and practicality for education.