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LM317 DC-DC Step Down Converter Module
Comparator
which can be read easily by microcontroller’s ADC converter
0 Bluetooth Speaker Module
The MPU-6050 is not expensive
SW-420 Vibration Switch Module USB to Serial RS232 Converter Cable LM317 DC-DC Step Down ConverterIntroduction: SW 420 vibration sensor is a module that can detect vibrations or shocks on a surface. It can be used for various purposes, such as detecting door knocks, machine malfunctions, car collisions, or alarm systems. It operates from 3. 3 V to 5 V. The module has three peripherals, two LEDs, one for the power status and the other for the sensor output. In addition, there is a potentiometer that can be further used to control the threshold