My circuit/electronics skills are pretty limited to following schematics and building a circuit directly from them.
I'm trying to find a circuit to get me 99 percent of the way toward interfacing the following two items for indicating ml/min water flow...
https://img.diytrade.com/cdimg/163371/3406791/0/1174985167/MS_Mini_flow_sensor.jpg
15 LED Circular & Linear Bargraphs - LEDtronics - 12991
I'd like the bargraph to register 0 - 2000 ml/min. With straight up (middle) bar indicating 1000ml/min
I realize that this is essentially an LED bargraph tachometer reading pulses from a hall effect switch.
Since RPM measurement with hall switches is such a common task, I'm hoping that there exists
some schematic involving the following ICs to accomplish this with little additional conditioning
or (hopefully no) programing.
LM2917 freq/volt converter IC
LM3914/15/16/17 LED driver ICs
Would the following page be of use to me?
Thanks so much.
Brad
I'm trying to find a circuit to get me 99 percent of the way toward interfacing the following two items for indicating ml/min water flow...
https://img.diytrade.com/cdimg/163371/3406791/0/1174985167/MS_Mini_flow_sensor.jpg
15 LED Circular & Linear Bargraphs - LEDtronics - 12991
I'd like the bargraph to register 0 - 2000 ml/min. With straight up (middle) bar indicating 1000ml/min
I realize that this is essentially an LED bargraph tachometer reading pulses from a hall effect switch.
Since RPM measurement with hall switches is such a common task, I'm hoping that there exists
some schematic involving the following ICs to accomplish this with little additional conditioning
or (hopefully no) programing.
LM2917 freq/volt converter IC
LM3914/15/16/17 LED driver ICs
Would the following page be of use to me?
Thanks so much.
Brad
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