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Main chip: LM393
When it comes to measuring the gas in ppm the analog pin has to be used
Built-in operating buzzer
Bluetooth core V2
of Pins : 20Pins
Magnetic Sensor Module 74151 Main chip: LM393Introduction : Magnetic Sensor module is based on encapsulated dry reed switch CT10. CT10 is single pole, single throw (SPST) type, having normally open ruthenium contacts. The sensor is a double ended type and may be actuated with an electromagnet,a permanent magnet or a combination of both. The magnetic switch is a wonderful tool for designers who would like to turn a circuit on and off based on proximity. Applications : Medical applications.