74HC47 ( BCD to 7-Segment Decoder) RFID 13.5 Mhz Free-Fall Detection

Free-Fall Detection

74HC1457 is a quad 2-input multiplexer

Adjustable sensitivity

however you can load different firmwares to make your own applicaiton on the modules' memory and processor

and also digital signal which would be more easy to use

74HC47 ( BCD to 7-Segment Decoder) RFID 13.5 Mhz Free-Fall DetectionIntroduction : 74HC47 is a BCD to 7 segment latch decoder driver with four address inputs (A, B, C, D), a latch enable input (LE), a ripple blanking input (BI), a lamp test input (LT), and seven segment outputs (a to g). When LE is LOW, the state of the segment outputs (a to g) is determined by the data on A to D. When LE goes HIGH, the last data present on A to D are stored in the latches and the segment outputs remain stable. When LT is LOW, all the