This article describes a smart electronic counter that counts the number of pressure-cooker whistles and also time duration of the cooking. It triggers a buzzer alarm when the preset whistles count or preset cooking time duration is reached.
This design can also be used in factories having boilers with pressure release valves to automatically turn them off on hearing the sound at boiling point. Or it can be used in steam engines to automatically cut off power when sound is made by the vessel’s outlet valve.
Block diagram of the project is shown in Fig. 1. The components used in the project are listed under the Bill of Material table.
Palak Patel is an electronics engineer having experience in embedded system development for terminal automation industry. Currently she is doing freelancing for embedded systems projects