Dr. Changhyeon Kim, a member of the Kubota Lab, recently led a hands-on workshop focused on sensor-based controlling for Controlled Environment Agriculture. The workshop discussed the fundamental principles of sensor operation and the key considerations in selecting appropriate sensors and microcontrollers. To help participants better understand the principles of sensor-based control, the workshop included hands-on activities using an open-source microcontroller ‘Arduino’. Kubota Lab explored hardware and software components of Arduino for measuring temperature using a thermistor, storing the temperature data, and controlling a relay driver. This workshop enhanced Kubota lab members’ understanding of the operational principle of sensors and explored examples of low-cost controlling systems in CEA.