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The lens used here is not really doing much and so we see that the two slots can 'see' out past some distance (basically the sensitivity of the sensor)
Sliding case for easy access
Alcohol Sensor(MQ3) module is useful for gas leakage detection (in home and industry)
74HC595N using serial information then gathers or outputs information in a parallel (multi-pin) format
This MCU board also includes 4 UARTs (hardware serial ports)
74HC155 (Dual 2-to-4-line Decoders/demultiplexers) 74HC191 The lens used here isIntroduction : 74HC155 (Dual 2 to 4 line Decoders demultiplexers) It is in the DIP 16 sheath. 74HC155 is in the category of Integration Decoder Encoder and is a 2 4 Line Decoder Demultiplexer integrated in function. 74HC155 2 4 Line Decoder Demultiplexer Integration with 4 outputs works with a supply voltage between 2 6 V. To see the functions and functions of the 74HC155 Decoder Encoder Integration in more detail, be sure to review the datasheet of