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Battery Powered and Portable Equipment
The sound sensor module work like that: when the intensity of the sound can not reach set threshold
✔ External antenna for better reading range✔ Stable and accurate card detection✔ Easy UART interface integration✔ Low power consumption✔ Supports LED & buzzer indication✔ Compatible with Arduino and other microcontrollers
The clock/calendar provides seconds
The multiple enable lines allow for the parallel expansion of decoders to create 4-to-16 line versions with no additional parts and 5-to-32 versions with the addition of a single inverter
74HC4051 (Analog Switches) 7407 Battery Powered and Portable EquipmentFeatures: Multiplexer Demultiplexer Circuit: 8: 1. Voltage Supply: 2V ~ 6V. Number of Circuits: 1. On State Resistance(Max): 130Ohm. Channel to Channel Matching (Ron): 8. 5Ohm. Voltage Supply, Dual (V): 1V ~ 5V. Current Leakage (IS(off)) (Max): 400nA. Package Case: 16 DIP (0. 300", 7. 62mm). 74HC4051 datasheet.