mirror of https://github.com/arendst/Tasmota.git
328 lines
12 KiB
C++
328 lines
12 KiB
C++
/*
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xnrg_14_bl0940.ino - BL0940 energy sensor support for Tasmota
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Copyright (C) 2020 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_BL0940
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/*********************************************************************************************\
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* BL0940 - Energy (Blitzwolf SHP10)
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*
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* Template {"NAME":"BW-SHP10","GPIO":[0,148,0,207,158,21,0,0,0,17,0,0,0],"FLAG":0,"BASE":18}
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*
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* Based on datasheet from http://www.belling.com.cn/media/file_object/bel_product/BL0940/datasheet/BL0940_V1.1_en.pdf
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\*********************************************************************************************/
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#define XNRG_14 14
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#define BL0940_PREF 1430
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#define BL0940_UREF 33000
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#define BL0940_IREF 2750
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#define BL0940_PULSES_NOT_INITIALIZED -1
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#define BL0940_BUFFER_SIZE 36
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#define BL0940_WRITE_COMMAND 0xA0 // 0xA8 according to documentation
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#define BL0940_REG_I_FAST_RMS_CTRL 0x10
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#define BL0940_REG_MODE 0x18
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#define BL0940_REG_SOFT_RESET 0x19
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#define BL0940_REG_USR_WRPROT 0x1A
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#define BL0940_REG_TPS_CTRL 0x1B
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#define BL0940_READ_COMMAND 0x50 // 0x58 according to documentation
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#define BL0940_FULL_PACKET 0xAA
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#define BL0940_PACKET_HEADER 0x55 // 0x58 according to documentation
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#include <TasmotaSerial.h>
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TasmotaSerial *Bl0940Serial = nullptr;
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struct BL0940 {
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long voltage = 0;
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long current = 0;
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long power = 0;
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long power_cycle_first = 0;
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long cf_pulses = 0;
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long cf_pulses_last_time = BL0940_PULSES_NOT_INITIALIZED;
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float temperature;
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int byte_counter = 0;
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uint16_t tps1 = 0;
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uint8_t *rx_buffer = nullptr;
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bool received = false;
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} Bl0940;
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const uint8_t bl0940_init[5][6] = {
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{ BL0940_WRITE_COMMAND, BL0940_REG_SOFT_RESET, 0x5A, 0x5A, 0x5A, 0x38 }, // Reset to default
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{ BL0940_WRITE_COMMAND, BL0940_REG_USR_WRPROT, 0x55, 0x00, 0x00, 0xF0 }, // Enable User Operation Write
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{ BL0940_WRITE_COMMAND, BL0940_REG_MODE, 0x00, 0x10, 0x00, 0x37 }, // 0x0100 = CF_UNABLE energy pulse, AC_FREQ_SEL 50Hz, RMS_UPDATE_SEL 800mS
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{ BL0940_WRITE_COMMAND, BL0940_REG_TPS_CTRL, 0xFF, 0x47, 0x00, 0xFE }, // 0x47FF = Over-current and leakage alarm on, Automatic temperature measurement, Interval 100mS
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{ BL0940_WRITE_COMMAND, BL0940_REG_I_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x1B }}; // 0x181C = Half cycle, Fast RMS threshold 6172
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void Bl0940Received(void) {
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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 25 26 27 28 29 30 31 32 33 34
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// 55 F2 03 00 00 00 00 7E 02 00 D4 B0 72 AC 01 00 00 00 00 02 01 00 00 00 00 00 00 00 BA 01 00 FE 03 00 83
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// 55 88 02 00 49 00 00 FE 02 00 AF EF 71 D2 01 00 EB FF FF 49 01 00 00 00 00 02 00 00 CF 01 00 FE 03 00 9F
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// 55 B9 33 00 DE 45 00 94 02 00 CF E4 70 63 02 00 6C 4C 00 13 01 00 09 00 00 00 00 00 E4 01 00 FE 03 00 72
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// Hd IFRms--- Current- Reserved Voltage- Reserved Power--- Reserved CF------ Reserved TPS1---- TPS2---- Ck
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uint16_t tps1 = Bl0940.rx_buffer[29] << 8 | Bl0940.rx_buffer[28]; // TPS1 unsigned
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if ((Bl0940.rx_buffer[0] != BL0940_PACKET_HEADER) || // Bad header
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(Bl0940.tps1 && ((tps1 < (Bl0940.tps1 -10)) || (tps1 > (Bl0940.tps1 +10)))) // Invalid temperature change
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) {
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AddLog_P2(LOG_LEVEL_DEBUG, PSTR("BL9: Invalid data"));
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return;
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}
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Bl0940.tps1 = tps1;
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float t = ((170.0f/448.0f)*(((float)Bl0940.tps1/2.0f)-32.0f))-45.0f;
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Bl0940.temperature = ConvertTemp(t);
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Bl0940.voltage = Bl0940.rx_buffer[12] << 16 | Bl0940.rx_buffer[11] << 8 | Bl0940.rx_buffer[10]; // V_RMS unsigned
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Bl0940.current = Bl0940.rx_buffer[6] << 16 | Bl0940.rx_buffer[5] << 8 | Bl0940.rx_buffer[4]; // I_RMS unsigned
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int32_t power = Bl0940.rx_buffer[18] << 24 | Bl0940.rx_buffer[17] << 16 | Bl0940.rx_buffer[16] << 8; // WATT signed
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Bl0940.power = abs(power) >> 8; // WATT unsigned
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int32_t cf_cnt = Bl0940.rx_buffer[24] << 24 | Bl0940.rx_buffer[23] << 16 | Bl0940.rx_buffer[22] << 8; // CF_CNT signed
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Bl0940.cf_pulses = abs(cf_cnt) >> 8;
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AddLog_P2(LOG_LEVEL_DEBUG, PSTR("BL9: U %d, I %d, P %d, C %d, T %d"),
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Bl0940.voltage, Bl0940.current, Bl0940.power, Bl0940.cf_pulses, Bl0940.tps1);
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if (Energy.power_on) { // Powered on
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Energy.voltage[0] = (float)Bl0940.voltage / Settings.energy_voltage_calibration;
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if (power && (Bl0940.power > Settings.energy_power_calibration)) { // We need at least 1W
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Energy.active_power[0] = (float)Bl0940.power / Settings.energy_power_calibration;
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Energy.current[0] = (float)Bl0940.current / (Settings.energy_current_calibration * 100);
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} else {
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Energy.active_power[0] = 0;
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Energy.current[0] = 0;
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}
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} else { // Powered off
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// Bl0940.power_cycle_first = 0;
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Energy.voltage[0] = 0;
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Energy.active_power[0] = 0;
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Energy.current[0] = 0;
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}
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}
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bool Bl0940SerialInput(void) {
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while (Bl0940Serial->available()) {
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yield();
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uint8_t serial_in_byte = Bl0940Serial->read();
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if (!Bl0940.received && (BL0940_PACKET_HEADER == serial_in_byte)) {
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Bl0940.received = true;
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Bl0940.byte_counter = 0;
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}
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if (Bl0940.received) {
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Bl0940.rx_buffer[Bl0940.byte_counter++] = serial_in_byte;
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if (BL0940_BUFFER_SIZE == Bl0940.byte_counter) {
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AddLogBuffer(LOG_LEVEL_DEBUG_MORE, Bl0940.rx_buffer, BL0940_BUFFER_SIZE -1);
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uint8_t checksum = BL0940_READ_COMMAND;
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for (uint32_t i = 0; i < BL0940_BUFFER_SIZE -2; i++) { checksum += Bl0940.rx_buffer[i]; }
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checksum ^= 0xFF;
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if (checksum == Bl0940.rx_buffer[34]) {
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Energy.data_valid[0] = 0;
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Bl0940Received();
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Bl0940.received = false;
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return true;
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} else {
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do { // Sync buffer with data (issue #1907 and #3425)
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memmove(Bl0940.rx_buffer, Bl0940.rx_buffer +1, BL0940_BUFFER_SIZE -1);
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Bl0940.byte_counter--;
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} while ((Bl0940.byte_counter > 1) && (BL0940_PACKET_HEADER != Bl0940.rx_buffer[0]));
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if (BL0940_PACKET_HEADER != Bl0940.rx_buffer[0]) {
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AddLog_P2(LOG_LEVEL_DEBUG, PSTR("BL9: " D_CHECKSUM_FAILURE));
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Bl0940.received = false;
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Bl0940.byte_counter = 0;
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}
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}
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}
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}
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}
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}
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/********************************************************************************************/
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void Bl0940EverySecond(void) {
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if (Energy.data_valid[0] > ENERGY_WATCHDOG) {
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Bl0940.voltage = 0;
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Bl0940.current = 0;
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Bl0940.power = 0;
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} else {
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/*
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// Calculate energy by using active power
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if (Energy.active_power[0]) {
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Energy.kWhtoday_delta += (Energy.active_power[0] * 1000) / 36;
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EnergyUpdateToday();
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}
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*/
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// Calculate energy by using active energy pulse count
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if (BL0940_PULSES_NOT_INITIALIZED == Bl0940.cf_pulses_last_time) {
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Bl0940.cf_pulses_last_time = Bl0940.cf_pulses; // Init after restart
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} else {
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uint32_t cf_pulses = 0;
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if (Bl0940.cf_pulses < Bl0940.cf_pulses_last_time) { // Rolled over after 0xFFFFFF (16777215) pulses
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cf_pulses = (0x1000000 - Bl0940.cf_pulses_last_time) + Bl0940.cf_pulses;
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} else {
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cf_pulses = Bl0940.cf_pulses - Bl0940.cf_pulses_last_time;
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}
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if (cf_pulses && Energy.active_power[0]) {
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uint32_t watt256 = (1638400 * 256) / Settings.energy_power_calibration;
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uint32_t delta = (cf_pulses * watt256) / 36;
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if (delta <= (4000 * 1000 / 36)) { // max load for SHP10: 4.00kW (3.68kW)
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Bl0940.cf_pulses_last_time = Bl0940.cf_pulses;
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Energy.kWhtoday_delta += delta;
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} else {
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AddLog_P2(LOG_LEVEL_DEBUG, PSTR("BL9: Overload"));
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Bl0940.cf_pulses_last_time = BL0940_PULSES_NOT_INITIALIZED;
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}
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EnergyUpdateToday();
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}
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}
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}
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// AddLog_P2(LOG_LEVEL_DEBUG, PSTR("BL9: Poll"));
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Bl0940Serial->flush();
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Bl0940Serial->write(BL0940_READ_COMMAND);
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Bl0940Serial->write(BL0940_FULL_PACKET);
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}
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void Bl0940SnsInit(void) {
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// Software serial init needs to be done here as earlier (serial) interrupts may lead to Exceptions
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Bl0940Serial = new TasmotaSerial(Pin(GPIO_BL0940_RX), Pin(GPIO_TXD), 1);
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if (Bl0940Serial->begin(4800, 1)) {
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if (Bl0940Serial->hardwareSerial()) {
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ClaimSerial();
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}
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if (HLW_UREF_PULSE == Settings.energy_voltage_calibration) {
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Settings.energy_voltage_calibration = BL0940_UREF;
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Settings.energy_current_calibration = BL0940_IREF;
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Settings.energy_power_calibration = BL0940_PREF;
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}
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for (uint32_t i = 0; i < 5; i++) {
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for (uint32_t j = 0; j < 6; j++) {
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Bl0940Serial->write(bl0940_init[i][j]);
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// Bl0940Serial->write(pgm_read_byte(bl0940_init + (6 * i) + j)); // Wrong byte order!
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}
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delay(1);
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}
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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 Bl0940DrvInit(void) {
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if (PinUsed(GPIO_BL0940_RX) && PinUsed(GPIO_TXD)) {
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Bl0940.rx_buffer = (uint8_t*)(malloc(BL0940_BUFFER_SIZE));
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if (Bl0940.rx_buffer != nullptr) {
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energy_flg = XNRG_14;
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}
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}
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}
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bool Bl0940Command(void) {
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bool serviced = true;
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uint32_t value = (uint32_t)(CharToFloat(XdrvMailbox.data) * 100); // 1.23 = 123
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if (CMND_POWERSET == Energy.command_code) {
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if (XdrvMailbox.data_len && Bl0940.power) {
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Settings.energy_power_calibration = (Bl0940.power * 100) / value;
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}
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}
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else if (CMND_VOLTAGESET == Energy.command_code) {
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if (XdrvMailbox.data_len && Bl0940.voltage) {
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Settings.energy_voltage_calibration = (Bl0940.voltage * 100) / value;
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}
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}
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else if (CMND_CURRENTSET == Energy.command_code) {
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if (XdrvMailbox.data_len && Bl0940.current) {
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Settings.energy_current_calibration = Bl0940.current / value;
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}
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}
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else serviced = false; // Unknown command
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return serviced;
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}
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void Bl0940Show(bool json) {
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char temperature[33];
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dtostrfd(Bl0940.temperature, Settings.flag2.temperature_resolution, temperature);
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if (json) {
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ResponseAppend_P(JSON_SNS_TEMP, "BL0940", temperature);
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if (0 == tele_period) {
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#ifdef USE_DOMOTICZ
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DomoticzSensor(DZ_TEMP, temperature);
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#endif // USE_DOMOTICZ
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#ifdef USE_KNX
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KnxSensor(KNX_TEMPERATURE, Bl0940.temperature);
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#endif // USE_KNX
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}
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#ifdef USE_WEBSERVER
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} else {
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WSContentSend_PD(HTTP_SNS_TEMP, "", temperature, TempUnit());
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#endif // USE_WEBSERVER
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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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bool Xnrg14(uint8_t function) {
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bool result = false;
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switch (function) {
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case FUNC_LOOP:
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if (Bl0940Serial) { Bl0940SerialInput(); }
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break;
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case FUNC_EVERY_SECOND:
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Bl0940EverySecond();
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break;
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case FUNC_JSON_APPEND:
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Bl0940Show(1);
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break;
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#ifdef USE_WEBSERVER
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case FUNC_WEB_SENSOR:
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Bl0940Show(0);
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break;
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#endif // USE_WEBSERVER
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case FUNC_COMMAND:
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result = Bl0940Command();
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break;
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case FUNC_INIT:
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Bl0940SnsInit();
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break;
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case FUNC_PRE_INIT:
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Bl0940DrvInit();
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break;
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}
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return result;
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}
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#endif // USE_BL0940
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#endif // USE_ENERGY_SENSOR
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