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162 lines
4.9 KiB
162 lines
4.9 KiB
/*
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ESPurna
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POW MODULE
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Support for Sonoff POW HLW8012-based power monitor
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Copyright (C) 2016 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#if ENABLE_POW
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#include <HLW8012.h>
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HLW8012 hlw8012;
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// -----------------------------------------------------------------------------
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// POW
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// -----------------------------------------------------------------------------
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// When using interrupts we have to call the library entry point
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// whenever an interrupt is triggered
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void hlw8012_cf1_interrupt() {
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hlw8012.cf1_interrupt();
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}
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void hlw8012_cf_interrupt() {
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hlw8012.cf_interrupt();
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}
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void powAttachInterrupts() {
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//attachInterrupt(POW_CF1_PIN, hlw8012_cf1_interrupt, CHANGE);
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attachInterrupt(POW_CF_PIN, hlw8012_cf_interrupt, CHANGE);
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DEBUG_MSG("[POW] Enabled\n");
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}
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void powDettachInterrupts() {
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//detachInterrupt(POW_CF1_PIN);
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detachInterrupt(POW_CF_PIN);
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DEBUG_MSG("[POW] Disabled\n");
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}
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void powSaveCalibration() {
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setSetting("powPowerMult", String() + hlw8012.getPowerMultiplier());
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setSetting("powCurrentMult", String() + hlw8012.getCurrentMultiplier());
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setSetting("powVoltageMult", String() + hlw8012.getVoltageMultiplier());
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}
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void powRetrieveCalibration() {
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double value;
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value = getSetting("powPowerMult", "0").toFloat();
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if (value > 0) hlw8012.setPowerMultiplier((int) value);
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value = getSetting("powCurrentMult", "0").toFloat();
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if (value > 0) hlw8012.setCurrentMultiplier((int) value);
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value = getSetting("powVoltageMult", "0").toFloat();
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if (value > 0) hlw8012.setVoltageMultiplier((int) value);
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}
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void powSetExpectedActivePower(unsigned int power) {
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if (power > 0) {
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hlw8012.expectedActivePower(power);
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powSaveCalibration();
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}
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}
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void powSetExpectedCurrent(double current) {
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if (current > 0) {
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hlw8012.expectedCurrent(current);
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powSaveCalibration();
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}
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}
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void powSetExpectedVoltage(unsigned int voltage) {
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if (voltage > 0) {
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hlw8012.expectedVoltage(voltage);
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powSaveCalibration();
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}
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}
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unsigned int getActivePower() {
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return hlw8012.getActivePower();
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}
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unsigned int getApparentPower() {
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return hlw8012.getApparentPower();
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}
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double getCurrent() {
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return hlw8012.getCurrent();
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}
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unsigned int getVoltage() {
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return hlw8012.getVoltage();
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}
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unsigned int getPowerFactor() {
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return (int) (100 * hlw8012.getPowerFactor());
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}
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void powSetup() {
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// Initialize HLW8012
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// void begin(unsigned char cf_pin, unsigned char cf1_pin, unsigned char sel_pin, unsigned char currentWhen = HIGH, bool use_interrupts = false, unsigned long pulse_timeout = PULSE_TIMEOUT);
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// * cf_pin, cf1_pin and sel_pin are GPIOs to the HLW8012 IC
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// * currentWhen is the value in sel_pin to select current sampling
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// * set use_interrupts to true to use interrupts to monitor pulse widths
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// * leave pulse_timeout to the default value, recommended when using interrupts
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hlw8012.begin(POW_CF_PIN, POW_CF1_PIN, POW_SEL_PIN, POW_SEL_CURRENT, false, 1000000);
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// These values are used to calculate current, voltage and power factors as per datasheet formula
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// These are the nominal values for the Sonoff POW resistors:
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// * The CURRENT_RESISTOR is the 1milliOhm copper-manganese resistor in series with the main line
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// * The VOLTAGE_RESISTOR_UPSTREAM are the 5 470kOhm resistors in the voltage divider that feeds the V2P pin in the HLW8012
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// * The VOLTAGE_RESISTOR_DOWNSTREAM is the 1kOhm resistor in the voltage divider that feeds the V2P pin in the HLW8012
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hlw8012.setResistors(POW_CURRENT_R, POW_VOLTAGE_R_UP, POW_VOLTAGE_R_DOWN);
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powRetrieveCalibration();
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/*
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static WiFiEventHandler e1 = WiFi.onStationModeDisconnected([](const WiFiEventStationModeDisconnected& event) {
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powDettachInterrupts();
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});
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static WiFiEventHandler e2 = WiFi.onSoftAPModeStationDisconnected([](const WiFiEventSoftAPModeStationDisconnected& event) {
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powDettachInterrupts();
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});
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static WiFiEventHandler e3 = WiFi.onStationModeConnected([](const WiFiEventStationModeConnected& event) {
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powAttachInterrupts();
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});
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static WiFiEventHandler e4 = WiFi.onSoftAPModeStationConnected([](const WiFiEventSoftAPModeStationConnected& event) {
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powAttachInterrupts();
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});
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*/
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}
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void powLoop() {
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static unsigned long last_update = 0;
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static unsigned char report_count = POW_REPORT_EVERY;
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if ((millis() - last_update > POW_UPDATE_INTERVAL) || (last_update == 0 )){
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last_update = millis();
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unsigned int power = getActivePower();
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char buffer[100];
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sprintf_P(buffer, PSTR("{\"powVisible\": 1, \"powActivePower\": %d}"), power);
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wsSend(buffer);
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if (--report_count == 0) {
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mqttSend((char *) getSetting("powPowerTopic", POW_POWER_TOPIC).c_str(), (char *) String(power).c_str());
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report_count = POW_REPORT_EVERY;
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}
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}
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}
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#endif
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