49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
#include <FlowMeter.h> // https://github.com/sekdiy/FlowMeter
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// enter your own sensor properties here, including calibration points
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FlowSensorProperties MySensor = {60.0f, 5.5f, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}};
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FlowMeter Meter = FlowMeter(2, MySensor);
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// timekeeping variables
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long period = 1000; // one second (in milliseconds)
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long lastTime = 0;
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// define an 'interrupt service routine' (ISR)
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void MeterISR() {
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// let our flow meter count the pulses
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Meter.count();
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}
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void setup() {
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// prepare serial communication
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Serial.begin(9600);
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// enable a call to the 'interrupt service handler' (ISR) on every rising edge at the interrupt pin
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attachInterrupt(INT0, MeterISR, RISING);
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// sometimes initializing the gear generates some pulses that we should ignore
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Meter.reset();
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}
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void loop() {
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// do some timekeeping
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long currentTime = millis();
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long duration = currentTime - lastTime;
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// wait between display updates
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if (duration >= period) {
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// process the counted ticks
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Meter.tick(duration);
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// output some measurement result
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Serial.println("FlowMeter - current flow rate: " + String(Meter.getCurrentFlowrate()) + " l/min, " +
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"nominal volume: " + String(Meter.getTotalVolume()) + " l, " +
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"compensated error: " + String(Meter.getCurrentError()) + " %, " +
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"duration: " + String(Meter.getTotalDuration() / 1000) + " s.");
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// prepare for next cycle
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lastTime = currentTime;
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}
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}
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