Tasmota/sonoff/xnrg_01_hlw8012.ino

281 lines
8.7 KiB
C++

/*
xnrg_01_hlw8012.ino - HLW8012 (Sonoff Pow) 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_HLW8012
/*********************************************************************************************\
* HLW8012, BL0937 or HJL-01 - Energy (Sonoff Pow, HuaFan, KMC70011, BlitzWolf)
*
* Based on Source: Shenzhen Heli Technology Co., Ltd
\*********************************************************************************************/
#define XNRG_01 1
// HLW8012 based (Sonoff Pow, KMC70011, HuaFan)
#define HLW_PREF 10000 // 1000.0W
#define HLW_UREF 2200 // 220.0V
#define HLW_IREF 4545 // 4.545A
#define HLW_SEL_VOLTAGE 1
// HJL-01 based (BlitzWolf, Homecube, Gosund)
#define HJL_PREF 1362
#define HJL_UREF 822
#define HJL_IREF 3300
#define HJL_SEL_VOLTAGE 0
#define HLW_POWER_PROBE_TIME 10 // Number of seconds to probe for power before deciding none used
byte hlw_select_ui_flag;
byte hlw_ui_flag = 1;
byte hlw_load_off;
byte hlw_cf1_timer;
unsigned long hlw_cf_pulse_length;
unsigned long hlw_cf_pulse_last_time;
unsigned long hlw_cf1_pulse_length;
unsigned long hlw_cf1_pulse_last_time;
unsigned long hlw_cf1_summed_pulse_length;
unsigned long hlw_cf1_pulse_counter;
unsigned long hlw_cf1_voltage_pulse_length;
unsigned long hlw_cf1_current_pulse_length;
unsigned long hlw_energy_period_counter;
unsigned long hlw_power_ratio = 0;
unsigned long hlw_voltage_ratio = 0;
unsigned long hlw_current_ratio = 0;
unsigned long hlw_cf1_voltage_max_pulse_counter;
unsigned long hlw_cf1_current_max_pulse_counter;
#ifndef USE_WS2812_DMA // Collides with Neopixelbus but solves exception
void HlwCfInterrupt() ICACHE_RAM_ATTR;
void HlwCf1Interrupt() ICACHE_RAM_ATTR;
#endif // USE_WS2812_DMA
void HlwCfInterrupt() // Service Power
{
unsigned long us = micros();
if (hlw_load_off) { // Restart plen measurement
hlw_cf_pulse_last_time = us;
hlw_load_off = 0;
} else {
hlw_cf_pulse_length = us - hlw_cf_pulse_last_time;
hlw_cf_pulse_last_time = us;
hlw_energy_period_counter++;
}
}
void HlwCf1Interrupt() // Service Voltage and Current
{
unsigned long us = micros();
hlw_cf1_pulse_length = us - hlw_cf1_pulse_last_time;
hlw_cf1_pulse_last_time = us;
if ((hlw_cf1_timer > 2) && (hlw_cf1_timer < 8)) { // Allow for 300 mSec set-up time and measure for up to 1 second
hlw_cf1_summed_pulse_length += hlw_cf1_pulse_length;
hlw_cf1_pulse_counter++;
if (10 == hlw_cf1_pulse_counter) {
hlw_cf1_timer = 8; // We need up to ten samples within 1 second (low current could take up to 0.3 second)
}
}
}
/********************************************************************************************/
void HlwEvery200ms()
{
unsigned long hlw_w = 0;
unsigned long hlw_u = 0;
unsigned long hlw_i = 0;
if (micros() - hlw_cf_pulse_last_time > (HLW_POWER_PROBE_TIME * 1000000)) {
hlw_cf_pulse_length = 0; // No load for some time
hlw_load_off = 1;
}
if (hlw_cf_pulse_length && energy_power_on && !hlw_load_off) {
hlw_w = (hlw_power_ratio * Settings.energy_power_calibration) / hlw_cf_pulse_length;
energy_active_power = (float)hlw_w / 10;
} else {
energy_active_power = 0;
}
hlw_cf1_timer++;
if (hlw_cf1_timer >= 8) {
hlw_cf1_timer = 0;
hlw_select_ui_flag = (hlw_select_ui_flag) ? 0 : 1;
digitalWrite(pin[GPIO_HLW_SEL], hlw_select_ui_flag);
if (hlw_cf1_pulse_counter) {
hlw_cf1_pulse_length = hlw_cf1_summed_pulse_length / hlw_cf1_pulse_counter;
} else {
hlw_cf1_pulse_length = 0;
}
if (hlw_select_ui_flag == hlw_ui_flag) {
hlw_cf1_voltage_pulse_length = hlw_cf1_pulse_length;
hlw_cf1_voltage_max_pulse_counter = hlw_cf1_pulse_counter;
if (hlw_cf1_voltage_pulse_length && energy_power_on) { // If powered on always provide voltage
hlw_u = (hlw_voltage_ratio * Settings.energy_voltage_calibration) / hlw_cf1_voltage_pulse_length;
energy_voltage = (float)hlw_u / 10;
} else {
energy_voltage = 0;
}
} else {
hlw_cf1_current_pulse_length = hlw_cf1_pulse_length;
hlw_cf1_current_max_pulse_counter = hlw_cf1_pulse_counter;
if (hlw_cf1_current_pulse_length && energy_active_power) { // No current if no power being consumed
hlw_i = (hlw_current_ratio * Settings.energy_current_calibration) / hlw_cf1_current_pulse_length;
energy_current = (float)hlw_i / 1000;
} else {
energy_current = 0;
}
}
hlw_cf1_summed_pulse_length = 0;
hlw_cf1_pulse_counter = 0;
}
}
void HlwEverySecond()
{
unsigned long hlw_len;
if (hlw_energy_period_counter) {
hlw_len = 10000 / hlw_energy_period_counter;
hlw_energy_period_counter = 0;
if (hlw_len) {
energy_kWhtoday_delta += ((hlw_power_ratio * Settings.energy_power_calibration) / hlw_len) / 36;
EnergyUpdateToday();
}
}
}
void HlwSnsInit()
{
if (!Settings.energy_power_calibration || (4975 == Settings.energy_power_calibration)) {
Settings.energy_power_calibration = HLW_PREF_PULSE;
Settings.energy_voltage_calibration = HLW_UREF_PULSE;
Settings.energy_current_calibration = HLW_IREF_PULSE;
}
if ((BLITZWOLF_BWSHP2 == Settings.module) || (TECKIN == Settings.module)) {
hlw_power_ratio = HJL_PREF;
hlw_voltage_ratio = HJL_UREF;
hlw_current_ratio = HJL_IREF;
hlw_ui_flag = HJL_SEL_VOLTAGE;
} else {
hlw_power_ratio = HLW_PREF;
hlw_voltage_ratio = HLW_UREF;
hlw_current_ratio = HLW_IREF;
hlw_ui_flag = HLW_SEL_VOLTAGE;
}
hlw_cf_pulse_length = 0;
hlw_cf_pulse_last_time = 0;
hlw_cf1_pulse_length = 0;
hlw_cf1_pulse_last_time = 0;
hlw_cf1_voltage_pulse_length = 0;
hlw_cf1_current_pulse_length = 0;
hlw_cf1_voltage_max_pulse_counter = 0;
hlw_cf1_current_max_pulse_counter = 0;
hlw_load_off = 1;
hlw_energy_period_counter = 0;
hlw_select_ui_flag = 0; // Voltage;
pinMode(pin[GPIO_HLW_SEL], OUTPUT);
digitalWrite(pin[GPIO_HLW_SEL], hlw_select_ui_flag);
pinMode(pin[GPIO_HLW_CF1], INPUT_PULLUP);
attachInterrupt(pin[GPIO_HLW_CF1], HlwCf1Interrupt, FALLING);
pinMode(pin[GPIO_HLW_CF], INPUT_PULLUP);
attachInterrupt(pin[GPIO_HLW_CF], HlwCfInterrupt, FALLING);
hlw_cf1_timer = 0;
}
void HlwDrvInit()
{
if (!energy_flg) {
if ((pin[GPIO_HLW_SEL] < 99) && (pin[GPIO_HLW_CF1] < 99) && (pin[GPIO_HLW_CF] < 99)) { // Sonoff Pow or any HLW8012 based device
energy_flg = XNRG_01;
}
}
}
boolean HlwCommand()
{
boolean serviced = true;
if (CMND_POWERSET == energy_command_code) {
if (XdrvMailbox.data_len && hlw_cf_pulse_length) {
Settings.energy_power_calibration = ((unsigned long)(CharToDouble(XdrvMailbox.data) * 10) * hlw_cf_pulse_length) / hlw_power_ratio;
}
}
else if (CMND_VOLTAGESET == energy_command_code) {
if (XdrvMailbox.data_len && hlw_cf1_voltage_pulse_length) {
Settings.energy_voltage_calibration = ((unsigned long)(CharToDouble(XdrvMailbox.data) * 10) * hlw_cf1_voltage_pulse_length) / hlw_voltage_ratio;
}
}
else if (CMND_CURRENTSET == energy_command_code) {
if (XdrvMailbox.data_len && hlw_cf1_current_pulse_length) {
Settings.energy_current_calibration = ((unsigned long)(CharToDouble(XdrvMailbox.data)) * hlw_cf1_current_pulse_length) / hlw_current_ratio;
}
}
else serviced = false; // Unknown command
return serviced;
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
int Xnrg01(byte function)
{
int result = 0;
if (FUNC_PRE_INIT == function) {
HlwDrvInit();
}
else if (XNRG_01 == energy_flg) {
switch (function) {
case FUNC_INIT:
HlwSnsInit();
break;
case FUNC_EVERY_SECOND:
HlwEverySecond();
break;
case FUNC_EVERY_200_MSECOND:
HlwEvery200ms();
break;
case FUNC_COMMAND:
result = HlwCommand();
break;
}
}
return result;
}
#endif // USE_HLW8012
#endif // USE_ENERGY_SENSOR