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datashert Hex 3-state inverting buffer. I don’t know how often the pulses will be coming in, because it will depend on what the sensor is detecting. You can use a 74HC 8 bit counter feeding into one side of a 74HC85 magnitude comparatorthen feed the other side from a shift register 74HC Quad 3-state buffer Hi enable.
74HC85 Datasheet, PDF – Alldatasheet
Triple 3-input NAND gate. Octal edge triggered latch.
Triple 3-input OR gate. I didn’t want to use the Arduino directly.
I have never used it, but judging from the datasheet it would seem so. Into the feed your number with the shift out tutorial. Triple 3-input AND gate. Click on the appropriate section below for the relevant data sheets. A quick googling gave datasheett theor 74HCT, which might fit the bill.
4-bit Magnitude Comparator
BCD to decimal decoder. Dual 4-bit binary counter. Quad 2-input 3-state mux.
Logic Data sheets Series Component. Just for the record, my reference to any “lengthy mumbling answer” was not intended for you, but something I didn’t include after all. Quad 2-input OR gate. Quad 2-input NAND gate.
BIN counter asynchronous reset. We hold data-sheets on many items that are found in the stores inventory. I’d suggest two or three shift registers latchablelike the 74HC Quad 2-input NOR gate. Dual 4-input NOR gate.
74HC85 Datasheet(PDF) – NXP Semiconductors
I just thought that if I could have something external count the pulses, I could have the Arduino doing something more important. Quad 3-state buffer Lo enable. BIN counter synchronous daatsheet. Triple 3-input NOR gate. Hex 2-input NOR enable buffer. Dual monostable multi vibrator.
Quad 2 to 1 line multiplexer.
The counter can be reset with an arduino output. Quad 2 to 1 line mux Inverter. Dual D type flip flop E-trig. I am doing 74hhc85 handful of analog readings which as I’ve read take significant amount of timeI am currently driving 2 servos PWM outputand I still have more features I am trying to add.