Piezo Sensor Element 20 mm film 56MHz RFID/NFC reader that can

56MHz RFID/NFC reader that can handle Mifare cards

which tell you how long can the battery stay charging your device

the Maxim MAX4466

The presence or absence of ferrous gear tooth are detected by measuring this distortion

A serial to Ethernet converter (device server) connects devices with RS485 or RS422 serial interface to a local area network for transmission of serial data over Ethernet

Piezo Sensor Element 20 mm film 56MHz RFID/NFC reader that canPiezo element is a sensor which is used to detect vibration, in this case, a knock on a door, table, or other solid surface. A piezo is an electronic device (sensor) that generates a voltage when it's physically deformed by a vibration, sound wave, or mechanical strain. Similarly, when you put a voltage across a piezo, it vibrates and creates a tone. Piezos can be used both to play tones and to detect tones. For more information on piezo electric