mirror of https://github.com/arendst/Tasmota.git
127 lines
4.0 KiB
C++
127 lines
4.0 KiB
C++
/*
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xnrg_06_pzem_dc.ino - PZEM-003,017 Modbus DC energy sensor support for Sonoff-Tasmota
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Copyright (C) 2019 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_DC
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/*********************************************************************************************\
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* PZEM-003 - DC 300V 10A Energy
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* PZEM-017 - DC 300V 50A - 300A Energy
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*
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* Based on:
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* PZEM-003,017 docs Https://pan.baidu.com/s/1V9bDWj3RK2u6_fbBJ3GtqQ password rq37
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*
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* Hardware Serial will be selected if GPIO1 = [99 PZEM017 Rx] and GPIO3 = [62 PZEM0XX Tx]
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\*********************************************************************************************/
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#define XNRG_06 6
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#define PZEM_DC_DEVICE_ADDRESS 0x01 // PZEM default address
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#include <TasmotaModbus.h>
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TasmotaModbus *PzemDcModbus;
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void PzemDcEverySecond(void)
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{
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static uint8_t send_retry = 0;
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bool data_ready = PzemDcModbus->ReceiveReady();
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if (data_ready) {
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uint8_t buffer[22];
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uint8_t error = PzemDcModbus->ReceiveBuffer(buffer, 8);
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AddLogBuffer(LOG_LEVEL_DEBUG_MORE, buffer, (buffer[2]) ? buffer[2] +5 : sizeof(buffer));
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if (error) {
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AddLog_P2(LOG_LEVEL_DEBUG, PSTR(D_LOG_DEBUG "PzemDc response error %d"), error);
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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
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// 01 04 10 05 40 00 0A 00 0D 00 00 00 02 00 00 00 00 00 00 D6 29
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// Id Cc Sz Volt- Curre Power------ Energy----- HiAlm LoAlm Crc--
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energy_voltage = (float)((buffer[3] << 8) + buffer[4]) / 100.0; // 655.00 V
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energy_current = (float)((buffer[5] << 8) + buffer[6]) / 100.0; // 655.00 A
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energy_active_power = (float)((buffer[9] << 24) + (buffer[10] << 16) + (buffer[7] << 8) + buffer[8]) / 10.0; // 429496729.0 W
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float energy = (float)((buffer[13] << 24) + (buffer[14] << 16) + (buffer[11] << 8) + buffer[12]); // 4294967295 Wh
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if (!energy_start || (energy < energy_start)) { energy_start = energy; } // Init after restart and handle roll-over if any
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if (energy != energy_start) {
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energy_kWhtoday += (unsigned long)((energy - energy_start) * 100);
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energy_start = energy;
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}
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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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PzemDcModbus->Send(PZEM_DC_DEVICE_ADDRESS, 0x04, 0, 8);
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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 PzemDcSnsInit(void)
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{
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PzemDcModbus = new TasmotaModbus(pin[GPIO_PZEM017_RX], pin[GPIO_PZEM0XX_TX]);
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uint8_t result = PzemDcModbus->Begin(9600, 2); // Uses two stop bits!!
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if (result) {
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if (2 == result) { ClaimSerial(); }
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energy_type_dc = true;
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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 PzemDcDrvInit(void)
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{
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if (!energy_flg) {
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if ((pin[GPIO_PZEM017_RX] < 99) && (pin[GPIO_PZEM0XX_TX] < 99)) {
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energy_flg = XNRG_06;
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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 Xnrg06(uint8_t 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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PzemDcDrvInit();
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}
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else if (XNRG_06 == energy_flg) {
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switch (function) {
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case FUNC_INIT:
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PzemDcSnsInit();
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break;
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case FUNC_EVERY_SECOND:
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PzemDcEverySecond();
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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_DC
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#endif // USE_ENERGY_SENSOR
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