This project is a project valve biogas with PID controller This study was carried out to determine the effect of the control pressure gas through a valve with a PID controller by studying the work of the feedback controller dedicated PID control and study their function. The microcontroller model Arduino UNO R3 Microcontroller on which the pressure sensor (MPXV7002 Pressure Sensor DUAL PORT), which are used to measure gas pressure in the pipeline. The researchers are interested in the control valve biogas from pig manure to biogas to produce electricity efficiently. And to promote and support the development of innovative technologies and renewable energy.