Infrasonic Sound Detection Using STM Based Microcontroller

This research aimed to develop a wireless detector array capable of detecting infrasound sources with accuracy. Infrasound is a low-frequency sound that frequently rises below the 20 Hz threshold for human audibility. Several natural phenomena, including earthquakes, avalanches, lightning, and tinderboxes, produce infrasound sound waves. They may also be produced by artificial means such as machinery, windmills, gun launches, munitions, helicopters, and drones. Based on the capacity to detect, we sought to produce a product that was simple to produce, provide efficiently, install simply, and offer real-time data. It was intended for the design to employ a collection of seven separate wireless detector bumps in an indirect array that would broadcast to a central receiver ‘knot’ node. A wireless transceiver, a microprocessor, and a microphone are components of each knot. To guarantee that each module could decode sound, they were all tested together. The module was tested with two distinct microphones: a conventional range microphone (100Hz-IS kHz), and a low frequency extended microphone (6Hz-20 kHz). The final prototype's wireless module tested data transmission to 25 meters in a high-gloss, high-hindrance environment. Further testing revealed that the detector array effectively picked up sound using the low-frequency extended-range microphone, communicated, and showed the user the sound data in real time.