3c1d3f7207
the absorption and float voltage setting is retrieved from connected Victron Ve.Direct MPPTs using the HEX protocol. the values are displayed in the live view, published to MQTT, and added to Home Assistent auto-discovery.
75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
#pragma once
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#include <Arduino.h>
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#include "VeDirectData.h"
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#include "VeDirectFrameHandler.h"
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template<typename T, size_t WINDOW_SIZE>
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class MovingAverage {
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public:
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MovingAverage()
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: _sum(0)
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, _index(0)
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, _count(0) { }
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void addNumber(T num) {
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if (_count < WINDOW_SIZE) {
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_count++;
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} else {
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_sum -= _window[_index];
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}
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_window[_index] = num;
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_sum += num;
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_index = (_index + 1) % WINDOW_SIZE;
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}
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float getAverage() const {
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if (_count == 0) { return 0.0; }
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return static_cast<float>(_sum) / _count;
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}
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private:
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std::array<T, WINDOW_SIZE> _window;
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T _sum;
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size_t _index;
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size_t _count;
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};
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struct VeDirectHexQueue {
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VeDirectHexRegister _hexRegister; // hex register
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uint8_t _readPeriod; // time period in sec until we send the command again
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uint32_t _lastSendTime; // time stamp in milli sec of last send
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};
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class VeDirectMpptController : public VeDirectFrameHandler<veMpptStruct> {
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public:
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VeDirectMpptController() = default;
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void init(int8_t rx, int8_t tx, Print* msgOut,
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bool verboseLogging, uint8_t hwSerialPort);
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using data_t = veMpptStruct;
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void loop() final;
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private:
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bool hexDataHandler(VeDirectHexData const &data) final;
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bool processTextDataDerived(std::string const& name, std::string const& value) final;
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void frameValidEvent() final;
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void sendNextHexCommandFromQueue(void);
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bool isHexCommandPossible(void);
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MovingAverage<float, 5> _efficiency;
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uint32_t _sendTimeout = 0; // timeout until we send the next command from the queue
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size_t _sendQueueNr = 0; // actual queue position;
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// for slow changing values we use a send time period of 4 sec
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#define HIGH_PRIO_COMMAND 1
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std::array<VeDirectHexQueue, 5> _hexQueue { VeDirectHexRegister::NetworkTotalDcInputPower, HIGH_PRIO_COMMAND, 0,
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VeDirectHexRegister::ChargeControllerTemperature, 4, 0,
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VeDirectHexRegister::SmartBatterySenseTemperature, 4, 0,
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VeDirectHexRegister::BatteryFloatVoltage, 4, 0,
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VeDirectHexRegister::BatteryAbsorptionVoltage, 4, 0 };
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};
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