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sending out sound waves to measure the distance to objects
Home Light Switching
Supports 20-29 AWG wires
the NodeMCU development kit connects to your local network and can be controlled through computers
Pin 6 of PORTC
0-100(99.9)V Digital Voltmeter Panel ultrasonic sending out sound waves to0 100(99. 9)V Digital Voltmeter Panel This 0 100V DC Digital Voltmeter can be used to measure the storage batterys voltage up to 100 Volts in motorcycles and cars and also to grasp the storage batterys status. It can also be used to measure other DC voltages. This voltmeter can operate on versatile 4. 5V to 30VDC range is the voltmeters maximum operating limited voltage.
US$ 46.00
US$ 21.00
US$ 15.99