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door locks
Incorporates three enable pins to simplify cascading
the addressed output follows the D input and all other outputs are LOW
full-step and micro-stepping mode
built-in 10-bit ADC and a converter USB-UART
Matrix Keypad 16 Key (4x4) 74HC47 door locksIntroduction : Membrane keypads are made of a thin, flexible membrane material. One of the great thing about them is that they come with an adhesive backing so you can attach it to nearly anything. You just have to peel the paper backing off. Matrix Keypad 16 switches are connected to each other with conductive trace underneath the pad forming a matrix of 44 grid. Features : Features : Circuit Rating: 35V (DC), 100mA, 1W. Contact resistance: 10 ~ 500.
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