mirror of https://github.com/arendst/Tasmota.git
127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/*
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xnrg_05_pzem_ac.ino - PZEM-014,016 Modbus AC energy sensor support for Sonoff-Tasmota
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Copyright (C) 2018 Theo Arends
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef USE_ENERGY_SENSOR
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#ifdef USE_PZEM_AC
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/*********************************************************************************************\
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* PZEM-014 - AC 220V 10A Energy
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* PZEM-016 - AC 220V 100A Energy
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*
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* Based on:
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* PZEM-014,016 docs https://pan.baidu.com/s/1B0MdMgURyjtO1oQa2lavKw password ytkv
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*
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* Hardware Serial will be selected if GPIO1 = [98 PZEM016 Rx] and GPIO3 = [62 PZEM0XX Tx]
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\*********************************************************************************************/
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#define XNRG_05 5
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#define PZEM_AC_DEVICE_ADDRESS 0x01 // PZEM default address
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#include <TasmotaModbus.h>
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TasmotaModbus *PzemAcModbus;
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void PzemAcEverySecond()
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{
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static uint8_t send_retry = 0;
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bool data_ready = PzemAcModbus->ReceiveReady();
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if (data_ready) {
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uint8_t buffer[26];
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uint8_t error = PzemAcModbus->ReceiveBuffer(buffer, 10);
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AddLogSerial(LOG_LEVEL_DEBUG_MORE, buffer, (buffer[2]) ? buffer[2] +5 : sizeof(buffer));
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if (error) {
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snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_DEBUG "PzemAc response error %d"), error);
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AddLog(LOG_LEVEL_DEBUG);
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} else {
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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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energy_voltage = (float)((buffer[3] << 8) + buffer[4]) / 10.0; // 6553.0 V
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energy_current = (float)((buffer[7] << 24) + (buffer[8] << 16) + (buffer[5] << 8) + buffer[6]) / 1000.0; // 4294967.000 A
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energy_active_power = (float)((buffer[11] << 24) + (buffer[12] << 16) + (buffer[9] << 8) + buffer[10]) / 10.0; // 429496729.0 W
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energy_frequency = (float)((buffer[17] << 8) + buffer[18]) / 10.0; // 50.0 Hz
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energy_power_factor = (float)((buffer[19] << 8) + buffer[20]) / 100.0; // 1.00
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float energy = (float)((buffer[15] << 24) + (buffer[16] << 16) + (buffer[13] << 8) + buffer[14]); // 4294967295 Wh
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if (!energy_start || (energy < energy_start)) { energy_start = energy; } // Init after restart and hanlde roll-over if any
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energy_kWhtoday += (energy - energy_start) * 100;
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energy_start = energy;
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EnergyUpdateToday();
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}
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}
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if (0 == send_retry || data_ready) {
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send_retry = 5;
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PzemAcModbus->Send(PZEM_AC_DEVICE_ADDRESS, 0x04, 0, 10);
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}
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else {
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send_retry--;
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}
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}
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void PzemAcSnsInit()
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{
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PzemAcModbus = new TasmotaModbus(pin[GPIO_PZEM016_RX], pin[GPIO_PZEM0XX_TX]);
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uint8_t result = PzemAcModbus->Begin(9600);
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if (result) {
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if (2 == result) { ClaimSerial(); }
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} else {
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energy_flg = ENERGY_NONE;
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}
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}
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void PzemAcDrvInit()
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{
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if (!energy_flg) {
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if ((pin[GPIO_PZEM016_RX] < 99) && (pin[GPIO_PZEM0XX_TX] < 99)) {
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energy_flg = XNRG_05;
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}
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}
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}
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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int Xnrg05(byte function)
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{
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int result = 0;
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if (FUNC_PRE_INIT == function) {
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PzemAcDrvInit();
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}
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else if (XNRG_05 == energy_flg) {
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switch (function) {
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case FUNC_INIT:
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PzemAcSnsInit();
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break;
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case FUNC_EVERY_SECOND:
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PzemAcEverySecond();
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break;
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}
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}
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return result;
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}
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#endif // USE_PZEM_AC
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#endif // USE_ENERGY_SENSOR
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