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272 lines
7.9 KiB
272 lines
7.9 KiB
// -----------------------------------------------------------------------------
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// V9261F based power monitor
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// Copyright (C) 2017-2019 by Xose Pérez <xose dot perez at gmail dot com>
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// -----------------------------------------------------------------------------
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#if SENSOR_SUPPORT && V9261F_SUPPORT
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#pragma once
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#include <Arduino.h>
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#include <SoftwareSerial.h>
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#include "BaseEmonSensor.h"
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extern "C" {
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#include "../libs/fs_math.h"
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}
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class V9261FSensor : public BaseEmonSensor {
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public:
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// ---------------------------------------------------------------------
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// Public
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// ---------------------------------------------------------------------
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V9261FSensor(): _data() {
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_count = 6;
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_sensor_id = SENSOR_V9261F_ID;
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}
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~V9261FSensor() {
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if (_serial) delete _serial;
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}
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// ---------------------------------------------------------------------
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void setRX(unsigned char pin_rx) {
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if (_pin_rx == pin_rx) return;
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_pin_rx = pin_rx;
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_dirty = true;
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}
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void setInverted(bool inverted) {
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if (_inverted == inverted) return;
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_inverted = inverted;
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_dirty = true;
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}
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// ---------------------------------------------------------------------
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unsigned char getRX() {
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return _pin_rx;
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}
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bool getInverted() {
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return _inverted;
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}
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// ---------------------------------------------------------------------
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// Sensor API
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// ---------------------------------------------------------------------
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// Initialization method, must be idempotent
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void begin() {
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if (!_dirty) return;
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if (_serial) delete _serial;
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_serial = new SoftwareSerial(_pin_rx, SW_SERIAL_UNUSED_PIN, _inverted, 32);
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_serial->enableIntTx(false);
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_serial->begin(V9261F_BAUDRATE);
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_ready = true;
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_dirty = false;
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}
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// Descriptive name of the sensor
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String description() {
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char buffer[28];
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snprintf(buffer, sizeof(buffer), "V9261F @ SwSerial(%u,NULL)", _pin_rx);
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return String(buffer);
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}
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// Descriptive name of the slot # index
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String slot(unsigned char index) {
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return description();
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};
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// Address of the sensor (it could be the GPIO or I2C address)
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String address(unsigned char index) {
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return String(_pin_rx);
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}
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// Loop-like method, call it in your main loop
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void tick() {
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_read();
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}
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// Type for slot # index
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unsigned char type(unsigned char index) {
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if (index == 0) return MAGNITUDE_CURRENT;
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if (index == 1) return MAGNITUDE_VOLTAGE;
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if (index == 2) return MAGNITUDE_POWER_ACTIVE;
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if (index == 3) return MAGNITUDE_POWER_REACTIVE;
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if (index == 4) return MAGNITUDE_POWER_APPARENT;
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if (index == 5) return MAGNITUDE_POWER_FACTOR;
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if (index == 6) return MAGNITUDE_ENERGY;
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return MAGNITUDE_NONE;
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}
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// Current value for slot # index
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double value(unsigned char index) {
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if (index == 0) return _current;
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if (index == 1) return _voltage;
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if (index == 2) return _active;
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if (index == 3) return _reactive;
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if (index == 4) return _apparent;
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if (index == 5) return _apparent > 0 ? 100 * _active / _apparent : 100;
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if (index == 6) return _energy[0].asDouble();
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return 0;
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}
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protected:
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// ---------------------------------------------------------------------
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// Protected
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// ---------------------------------------------------------------------
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void _read() {
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static unsigned char state = 0;
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static unsigned long last = 0;
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static unsigned long ts = 0;
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static bool found = false;
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static unsigned char index = 0;
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if (state == 0) {
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while (_serial->available()) {
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_serial->flush();
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found = true;
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ts = millis();
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}
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if (found && (millis() - ts > V9261F_SYNC_INTERVAL)) {
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_serial->flush();
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index = 0;
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state = 1;
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}
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} else if (state == 1) {
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while (_serial->available()) {
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_serial->read();
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if (index++ >= 7) {
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_serial->flush();
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index = 0;
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state = 2;
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}
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}
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} else if (state == 2) {
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while (_serial->available()) {
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_data[index] = _serial->read();
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if (index++ >= 19) {
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_serial->flush();
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ts = millis();
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state = 3;
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}
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}
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} else if (state == 3) {
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if (_checksum()) {
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_active = (double) (
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(_data[3]) +
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(_data[4] << 8) +
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(_data[5] << 16) +
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(_data[6] << 24)
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) / _ratioP;
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_reactive = (double) (
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(_data[7]) +
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(_data[8] << 8) +
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(_data[9] << 16) +
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(_data[10] << 24)
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) / _ratioR;
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_voltage = (double) (
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(_data[11]) +
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(_data[12] << 8) +
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(_data[13] << 16) +
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(_data[14] << 24)
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) / _ratioV;
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_current = (double) (
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(_data[15]) +
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(_data[16] << 8) +
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(_data[17] << 16) +
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(_data[18] << 24)
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) / _ratioC;
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if (_active < 0) _active = 0;
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if (_reactive < 0) _reactive = 0;
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if (_voltage < 0) _voltage = 0;
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if (_current < 0) _current = 0;
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_apparent = fs_sqrt(_reactive * _reactive + _active * _active);
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if (last > 0) {
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_energy[0] += sensor::Ws {
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static_cast<uint32_t>(_active * (millis() / last) / 1000)
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};
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}
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last = millis();
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}
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ts = millis();
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index = 0;
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state = 4;
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} else if (state == 4) {
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while (_serial->available()) {
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_serial->flush();
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ts = millis();
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}
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if (millis() - ts > V9261F_SYNC_INTERVAL) {
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state = 1;
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}
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}
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}
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bool _checksum() {
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unsigned char checksum = 0;
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for (unsigned char i = 0; i < 19; i++) {
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checksum = checksum + _data[i];
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}
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checksum = ~checksum + 0x33;
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return checksum == _data[19];
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}
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// ---------------------------------------------------------------------
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unsigned int _pin_rx = V9261F_PIN;
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bool _inverted = V9261F_PIN_INVERSE;
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SoftwareSerial * _serial = NULL;
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double _active = 0;
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double _reactive = 0;
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double _voltage = 0;
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double _current = 0;
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double _apparent = 0;
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double _ratioP = V9261F_POWER_FACTOR;
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double _ratioC = V9261F_CURRENT_FACTOR;
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double _ratioV = V9261F_VOLTAGE_FACTOR;
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double _ratioR = V9261F_RPOWER_FACTOR;
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unsigned char _data[24];
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};
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#endif // SENSOR_SUPPORT && V9261F_SUPPORT
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