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e077ad56bd
* Add PZEM004T Support * Don't flush as much * Update pzem004t.cpp * Add generalized modbus * Add PZEMAC * Add PZEMDC * Fix file modes * Lint * Fix * Fix * Add check_uart_settings
63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
#include "pzemac.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace pzemac {
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static const char *TAG = "pzemac";
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static const uint8_t PZEM_CMD_READ_IN_REGISTERS = 0x04;
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static const uint8_t PZEM_REGISTER_COUNT = 10; // 10x 16-bit registers
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void PZEMAC::on_modbus_data(const std::vector<uint8_t> &data) {
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if (data.size() < 20) {
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ESP_LOGW(TAG, "Invalid size for PZEM AC!");
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return;
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}
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// See https://github.com/esphome/feature-requests/issues/49#issuecomment-538636809
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
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// 01 04 14 08 D1 00 6C 00 00 00 F4 00 00 00 26 00 00 01 F4 00 64 00 00 51 34
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// Id Cc Sz Volt- Current---- Power------ Energy----- Frequ PFact Alarm Crc--
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auto pzem_get_16bit = [&](size_t i) -> uint16_t {
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return (uint16_t(data[i + 0]) << 8) | (uint16_t(data[i + 1]) << 0);
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};
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auto pzem_get_32bit = [&](size_t i) -> uint32_t {
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return (uint32_t(pzem_get_16bit(i + 2)) << 16) | (uint32_t(pzem_get_16bit(i + 0)) << 0);
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};
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uint16_t raw_voltage = pzem_get_16bit(0);
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float voltage = raw_voltage / 10.0f; // max 6553.5 V
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uint32_t raw_current = pzem_get_32bit(2);
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float current = raw_current / 1000.0f; // max 4294967.295 A
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uint32_t raw_active_power = pzem_get_32bit(6);
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float active_power = raw_active_power / 10.0f; // max 429496729.5 W
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uint16_t raw_frequency = pzem_get_16bit(14);
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float frequency = raw_frequency / 10.0f;
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uint16_t raw_power_factor = pzem_get_16bit(16);
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float power_factor = raw_power_factor / 100.0f;
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ESP_LOGD(TAG, "PZEM AC: V=%.1f V, I=%.3f A, P=%.1f W, F=%.1f Hz, PF=%.2f", voltage, current, active_power, frequency,
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power_factor);
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if (this->voltage_sensor_ != nullptr)
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this->voltage_sensor_->publish_state(voltage);
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if (this->current_sensor_ != nullptr)
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this->current_sensor_->publish_state(current);
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if (this->power_sensor_ != nullptr)
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this->power_sensor_->publish_state(active_power);
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if (this->frequency_sensor_ != nullptr)
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this->frequency_sensor_->publish_state(frequency);
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if (this->power_factor_sensor_ != nullptr)
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this->power_factor_sensor_->publish_state(power_factor);
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}
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void PZEMAC::update() { this->send(PZEM_CMD_READ_IN_REGISTERS, 0, PZEM_REGISTER_COUNT); }
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} // namespace pzemac
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} // namespace esphome
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