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This small DIP packaged IC contains an 8-bit
74HC02 Quad 2-Input NOR Gate
Hearing aids
SPI and I2C interfaces
With Magnetic Door Switch it is possible to monitor unauthorized opening of doors as well as side panels
Water Level Sensor IR Reflective Sensor This small DIP packaged ICIntoduction: This water level sensor module has a series of parallel exposed traces to measure droplets water volume in order to determine the water level. Very Easy to monitor water level as the output to analog signal is directly proportional to the water level. This output analog values can be directly read via ADC and can also be connected directly Arduino's analog input pins. Features: Working Voltage : DC 3 5V Working Current : <20mA Sensor Type
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