Tasmota/sonoff/xnrg_05_pzem_ac.ino

127 lines
4.2 KiB
C++

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