This research aims to 1) develop an innovation for controlling an automatic light on-off system via a mobile phone system, and 2) a semi-automatic watering control system for earthworm cultivation using soil relative humidity and temperature sensors. The researcher visited the Phothiyalai Farmer Group Community in Ubon Ratchathani Province to study the development of a semi-automatic control system for earthworm manure production for the community cooperative group. This research project focuses on qualitative research. The research controlled internal and external devices by switching the electrical system on and off via a smartphone system, a control box with status indicator lights, an application, and a controller. It can check the relative humidity in the soil and temperature via sensors, which consist of a soil relative humidity sensor and a temperature sensor with display results and can control abnormalities in the relative humidity in the soil that are lower than the specified conditions. The system will order water to be added to the soil via a smartphone or computer via a wireless network, etc. The results of the research on the performance of the semi-automatic control box for earthworm manure production were found to be at a high level (=4.522) The system can be used to help control the lights on-off and add water to the soil to support earthworm manure production.