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Code Issues Releases Wiki Activity

Add support for BL0939 (Sonoff Dual R3 V2 powermeter) (#3300)

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This commit is contained in:
I. Tomita
2022-04-21 01:11:25 +03:00
committed by GitHub
parent 9576d246ee
commit 7a778f3f33
6 changed files with 400 additions and 0 deletions
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1
CODEOWNERS
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@@ -31,6 +31,7 @@ esphome/components/bang_bang/* @OttoWinter
esphome/components/bedjet/* @jhansche
esphome/components/bh1750/* @OttoWinter
esphome/components/binary_sensor/* @esphome/core
esphome/components/bl0939/* @ziceva
esphome/components/bl0940/* @tobias-
esphome/components/ble_client/* @buxtronix
esphome/components/bme680_bsec/* @trvrnrth

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esphome/components/bl0939/__init__.py Normal file
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CODEOWNERS = ["@ziceva"]

144
esphome/components/bl0939/bl0939.cpp Normal file
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#include "bl0939.h"
#include "esphome/core/log.h"
namespace esphome {
namespace bl0939 {
static const char *const TAG = "bl0939";
// https://www.belling.com.cn/media/file_object/bel_product/BL0939/datasheet/BL0939_V1.2_cn.pdf
// (unfortunatelly chinese, but the protocol can be understood with some translation tool)
static const uint8_t BL0939_READ_COMMAND = 0x55; // 0x5{A4,A3,A2,A1}
static const uint8_t BL0939_FULL_PACKET = 0xAA;
static const uint8_t BL0939_PACKET_HEADER = 0x55;
static const uint8_t BL0939_WRITE_COMMAND = 0xA5; // 0xA{A4,A3,A2,A1}
static const uint8_t BL0939_REG_IA_FAST_RMS_CTRL = 0x10;
static const uint8_t BL0939_REG_IB_FAST_RMS_CTRL = 0x1E;
static const uint8_t BL0939_REG_MODE = 0x18;
static const uint8_t BL0939_REG_SOFT_RESET = 0x19;
static const uint8_t BL0939_REG_USR_WRPROT = 0x1A;
static const uint8_t BL0939_REG_TPS_CTRL = 0x1B;
const uint8_t BL0939_INIT[6][6] = {
// Reset to default
{BL0939_WRITE_COMMAND, BL0939_REG_SOFT_RESET, 0x5A, 0x5A, 0x5A, 0x33},
// Enable User Operation Write
{BL0939_WRITE_COMMAND, BL0939_REG_USR_WRPROT, 0x55, 0x00, 0x00, 0xEB},
// 0x0100 = CF_UNABLE energy pulse, AC_FREQ_SEL 50Hz, RMS_UPDATE_SEL 800mS
{BL0939_WRITE_COMMAND, BL0939_REG_MODE, 0x00, 0x10, 0x00, 0x32},
// 0x47FF = Over-current and leakage alarm on, Automatic temperature measurement, Interval 100mS
{BL0939_WRITE_COMMAND, BL0939_REG_TPS_CTRL, 0xFF, 0x47, 0x00, 0xF9},
// 0x181C = Half cycle, Fast RMS threshold 6172
{BL0939_WRITE_COMMAND, BL0939_REG_IA_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x16},
// 0x181C = Half cycle, Fast RMS threshold 6172
{BL0939_WRITE_COMMAND, BL0939_REG_IB_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x08}};
void BL0939::loop() {
DataPacket buffer;
if (!this->available()) {
return;
}
if (read_array((uint8_t *) &buffer, sizeof(buffer))) {
if (validate_checksum(&buffer)) {
received_package_(&buffer);
}
} else {
ESP_LOGW(TAG, "Junk on wire. Throwing away partial message");
while (read() >= 0)
;
}
}
bool BL0939::validate_checksum(const DataPacket *data) {
uint8_t checksum = BL0939_READ_COMMAND;
// Whole package but checksum
for (uint32_t i = 0; i < sizeof(data->raw) - 1; i++) {
checksum += data->raw[i];
}
checksum ^= 0xFF;
if (checksum != data->checksum) {
ESP_LOGW(TAG, "BL0939 invalid checksum! 0x%02X != 0x%02X", checksum, data->checksum);
}
return checksum == data->checksum;
}
void BL0939::update() {
this->flush();
this->write_byte(BL0939_READ_COMMAND);
this->write_byte(BL0939_FULL_PACKET);
}
void BL0939::setup() {
for (auto *i : BL0939_INIT) {
this->write_array(i, 6);
delay(1);
}
this->flush();
}
void BL0939::received_package_(const DataPacket *data) const {
// Bad header
if (data->frame_header != BL0939_PACKET_HEADER) {
ESP_LOGI("bl0939", "Invalid data. Header mismatch: %d", data->frame_header);
return;
}
float v_rms = (float) to_uint32_t(data->v_rms) / voltage_reference_;
float ia_rms = (float) to_uint32_t(data->ia_rms) / current_reference_;
float ib_rms = (float) to_uint32_t(data->ib_rms) / current_reference_;
float a_watt = (float) to_int32_t(data->a_watt) / power_reference_;
float b_watt = (float) to_int32_t(data->b_watt) / power_reference_;
int32_t cfa_cnt = to_int32_t(data->cfa_cnt);
int32_t cfb_cnt = to_int32_t(data->cfb_cnt);
float a_energy_consumption = (float) cfa_cnt / energy_reference_;
float b_energy_consumption = (float) cfb_cnt / energy_reference_;
float total_energy_consumption = a_energy_consumption + b_energy_consumption;
if (voltage_sensor_ != nullptr) {
voltage_sensor_->publish_state(v_rms);
}
if (current_sensor_1_ != nullptr) {
current_sensor_1_->publish_state(ia_rms);
}
if (current_sensor_2_ != nullptr) {
current_sensor_2_->publish_state(ib_rms);
}
if (power_sensor_1_ != nullptr) {
power_sensor_1_->publish_state(a_watt);
}
if (power_sensor_2_ != nullptr) {
power_sensor_2_->publish_state(b_watt);
}
if (energy_sensor_1_ != nullptr) {
energy_sensor_1_->publish_state(a_energy_consumption);
}
if (energy_sensor_2_ != nullptr) {
energy_sensor_2_->publish_state(b_energy_consumption);
}
if (energy_sensor_sum_ != nullptr) {
energy_sensor_sum_->publish_state(total_energy_consumption);
}
ESP_LOGV("bl0939", "BL0939: U %fV, I1 %fA, I2 %fA, P1 %fW, P2 %fW, CntA %d, CntB %d, ∫P1 %fkWh, ∫P2 %fkWh", v_rms,
ia_rms, ib_rms, a_watt, b_watt, cfa_cnt, cfb_cnt, a_energy_consumption, b_energy_consumption);
}
void BL0939::dump_config() { // NOLINT(readability-function-cognitive-complexity)
ESP_LOGCONFIG(TAG, "BL0939:");
LOG_SENSOR("", "Voltage", this->voltage_sensor_);
LOG_SENSOR("", "Current 1", this->current_sensor_1_);
LOG_SENSOR("", "Current 2", this->current_sensor_2_);
LOG_SENSOR("", "Power 1", this->power_sensor_1_);
LOG_SENSOR("", "Power 2", this->power_sensor_2_);
LOG_SENSOR("", "Energy 1", this->energy_sensor_1_);
LOG_SENSOR("", "Energy 2", this->energy_sensor_2_);
LOG_SENSOR("", "Energy sum", this->energy_sensor_sum_);
}
uint32_t BL0939::to_uint32_t(ube24_t input) { return input.h << 16 | input.m << 8 | input.l; }
int32_t BL0939::to_int32_t(sbe24_t input) { return input.h << 16 | input.m << 8 | input.l; }
} // namespace bl0939
} // namespace esphome

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esphome/components/bl0939/bl0939.h Normal file
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#pragma once
#include "esphome/core/component.h"
#include "esphome/components/uart/uart.h"
#include "esphome/components/sensor/sensor.h"
namespace esphome {
namespace bl0939 {
// https://datasheet.lcsc.com/lcsc/2108071830_BL-Shanghai-Belling-BL0939_C2841044.pdf
// (unfortunatelly chinese, but the formulas can be easily understood)
// Sonoff Dual R3 V2 has the exact same resistor values for the current shunts (RL=1miliOhm)
// and for the voltage divider (R1=0.51kOhm, R2=5*390kOhm)
// as in the manufacturer's reference circuit, so the same formulas were used here (Vref=1.218V)
static const float BL0939_IREF = 324004 * 1 / 1.218;
static const float BL0939_UREF = 79931 * 0.51 * 1000 / (1.218 * (5 * 390 + 0.51));
static const float BL0939_PREF = 4046 * 1 * 0.51 * 1000 / (1.218 * 1.218 * (5 * 390 + 0.51));
static const float BL0939_EREF = 3.6e6 * 4046 * 1 * 0.51 * 1000 / (1638.4 * 256 * 1.218 * 1.218 * (5 * 390 + 0.51));
struct ube24_t { // NOLINT(readability-identifier-naming,altera-struct-pack-align)
uint8_t l;
uint8_t m;
uint8_t h;
} __attribute__((packed));
struct ube16_t { // NOLINT(readability-identifier-naming,altera-struct-pack-align)
uint8_t l;
uint8_t h;
} __attribute__((packed));
struct sbe24_t { // NOLINT(readability-identifier-naming,altera-struct-pack-align)
uint8_t l;
uint8_t m;
int8_t h;
} __attribute__((packed));
// Caveat: All these values are big endian (low - middle - high)
union DataPacket { // NOLINT(altera-struct-pack-align)
uint8_t raw[35];
struct {
uint8_t frame_header; // 0x55 according to docs
ube24_t ia_fast_rms;
ube24_t ia_rms;
ube24_t ib_rms;
ube24_t v_rms;
ube24_t ib_fast_rms;
sbe24_t a_watt;
sbe24_t b_watt;
sbe24_t cfa_cnt;
sbe24_t cfb_cnt;
ube16_t tps1;
uint8_t RESERVED1; // value of 0x00
ube16_t tps2;
uint8_t RESERVED2; // value of 0x00
uint8_t checksum; // checksum
};
} __attribute__((packed));
class BL0939 : public PollingComponent, public uart::UARTDevice {
public:
void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
void set_current_sensor_1(sensor::Sensor *current_sensor_1) { current_sensor_1_ = current_sensor_1; }
void set_current_sensor_2(sensor::Sensor *current_sensor_2) { current_sensor_2_ = current_sensor_2; }
void set_power_sensor_1(sensor::Sensor *power_sensor_1) { power_sensor_1_ = power_sensor_1; }
void set_power_sensor_2(sensor::Sensor *power_sensor_2) { power_sensor_2_ = power_sensor_2; }
void set_energy_sensor_1(sensor::Sensor *energy_sensor_1) { energy_sensor_1_ = energy_sensor_1; }
void set_energy_sensor_2(sensor::Sensor *energy_sensor_2) { energy_sensor_2_ = energy_sensor_2; }
void set_energy_sensor_sum(sensor::Sensor *energy_sensor_sum) { energy_sensor_sum_ = energy_sensor_sum; }
void loop() override;
void update() override;
void setup() override;
void dump_config() override;
protected:
sensor::Sensor *voltage_sensor_;
sensor::Sensor *current_sensor_1_;
sensor::Sensor *current_sensor_2_;
// NB This may be negative as the circuits is seemingly able to measure
// power in both directions
sensor::Sensor *power_sensor_1_;
sensor::Sensor *power_sensor_2_;
sensor::Sensor *energy_sensor_1_;
sensor::Sensor *energy_sensor_2_;
sensor::Sensor *energy_sensor_sum_;
// Divide by this to turn into Watt
float power_reference_ = BL0939_PREF;
// Divide by this to turn into Volt
float voltage_reference_ = BL0939_UREF;
// Divide by this to turn into Ampere
float current_reference_ = BL0939_IREF;
// Divide by this to turn into kWh
float energy_reference_ = BL0939_EREF;
static uint32_t to_uint32_t(ube24_t input);
static int32_t to_int32_t(sbe24_t input);
static bool validate_checksum(const DataPacket *data);
void received_package_(const DataPacket *data) const;
};
} // namespace bl0939
} // namespace esphome

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esphome/components/bl0939/sensor.py Normal file
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import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import sensor, uart
from esphome.const import (
CONF_ID,
CONF_VOLTAGE,
DEVICE_CLASS_CURRENT,
DEVICE_CLASS_ENERGY,
DEVICE_CLASS_POWER,
DEVICE_CLASS_VOLTAGE,
STATE_CLASS_MEASUREMENT,
UNIT_AMPERE,
UNIT_KILOWATT_HOURS,
UNIT_VOLT,
UNIT_WATT,
)
DEPENDENCIES = ["uart"]
CONF_CURRENT_1 = "current_1"
CONF_CURRENT_2 = "current_2"
CONF_ACTIVE_POWER_1 = "active_power_1"
CONF_ACTIVE_POWER_2 = "active_power_2"
CONF_ENERGY_1 = "energy_1"
CONF_ENERGY_2 = "energy_2"
CONF_ENERGY_TOTAL = "energy_total"
bl0939_ns = cg.esphome_ns.namespace("bl0939")
BL0939 = bl0939_ns.class_("BL0939", cg.PollingComponent, uart.UARTDevice)
CONFIG_SCHEMA = (
cv.Schema(
{
cv.GenerateID(): cv.declare_id(BL0939),
cv.Optional(CONF_VOLTAGE): sensor.sensor_schema(
unit_of_measurement=UNIT_VOLT,
accuracy_decimals=1,
device_class=DEVICE_CLASS_VOLTAGE,
state_class=STATE_CLASS_MEASUREMENT,
),
cv.Optional(CONF_CURRENT_1): sensor.sensor_schema(
unit_of_measurement=UNIT_AMPERE,
accuracy_decimals=2,
device_class=DEVICE_CLASS_CURRENT,
state_class=STATE_CLASS_MEASUREMENT,
),
cv.Optional(CONF_CURRENT_2): sensor.sensor_schema(
unit_of_measurement=UNIT_AMPERE,
accuracy_decimals=2,
device_class=DEVICE_CLASS_CURRENT,
state_class=STATE_CLASS_MEASUREMENT,
),
cv.Optional(CONF_ACTIVE_POWER_1): sensor.sensor_schema(
unit_of_measurement=UNIT_WATT,
accuracy_decimals=0,
device_class=DEVICE_CLASS_POWER,
state_class=STATE_CLASS_MEASUREMENT,
),
cv.Optional(CONF_ACTIVE_POWER_2): sensor.sensor_schema(
unit_of_measurement=UNIT_WATT,
accuracy_decimals=0,
device_class=DEVICE_CLASS_POWER,
state_class=STATE_CLASS_MEASUREMENT,
),
cv.Optional(CONF_ENERGY_1): sensor.sensor_schema(
unit_of_measurement=UNIT_KILOWATT_HOURS,
accuracy_decimals=3,
device_class=DEVICE_CLASS_ENERGY,
),
cv.Optional(CONF_ENERGY_2): sensor.sensor_schema(
unit_of_measurement=UNIT_KILOWATT_HOURS,
accuracy_decimals=3,
device_class=DEVICE_CLASS_ENERGY,
),
cv.Optional(CONF_ENERGY_TOTAL): sensor.sensor_schema(
unit_of_measurement=UNIT_KILOWATT_HOURS,
accuracy_decimals=3,
device_class=DEVICE_CLASS_ENERGY,
),
}
)
.extend(cv.polling_component_schema("60s"))
.extend(uart.UART_DEVICE_SCHEMA)
)
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_component(var, config)
await uart.register_uart_device(var, config)
if CONF_VOLTAGE in config:
conf = config[CONF_VOLTAGE]
sens = await sensor.new_sensor(conf)
cg.add(var.set_voltage_sensor(sens))
if CONF_CURRENT_1 in config:
conf = config[CONF_CURRENT_1]
sens = await sensor.new_sensor(conf)
cg.add(var.set_current_sensor_1(sens))
if CONF_CURRENT_2 in config:
conf = config[CONF_CURRENT_2]
sens = await sensor.new_sensor(conf)
cg.add(var.set_current_sensor_2(sens))
if CONF_ACTIVE_POWER_1 in config:
conf = config[CONF_ACTIVE_POWER_1]
sens = await sensor.new_sensor(conf)
cg.add(var.set_power_sensor_1(sens))
if CONF_ACTIVE_POWER_2 in config:
conf = config[CONF_ACTIVE_POWER_2]
sens = await sensor.new_sensor(conf)
cg.add(var.set_power_sensor_2(sens))
if CONF_ENERGY_1 in config:
conf = config[CONF_ENERGY_1]
sens = await sensor.new_sensor(conf)
cg.add(var.set_energy_sensor_1(sens))
if CONF_ENERGY_2 in config:
conf = config[CONF_ENERGY_2]
sens = await sensor.new_sensor(conf)
cg.add(var.set_energy_sensor_2(sens))
if CONF_ENERGY_TOTAL in config:
conf = config[CONF_ENERGY_TOTAL]
sens = await sensor.new_sensor(conf)
cg.add(var.set_energy_sensor_sum(sens))

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tests/test3.yaml
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@@ -256,6 +256,12 @@ uart:
tx_pin: GPIO4
rx_pin: GPIO5
baud_rate: 38400
- id: uart8
tx_pin: GPIO4
rx_pin: GPIO5
baud_rate: 4800
parity: NONE
stop_bits: 2
# Specifically added for testing debug with no options at all.
debug:
@@ -477,6 +483,24 @@ sensor:
active_power_b:
name: ADE7953 Active Power B
id: ade7953_active_power_b
- platform: bl0939
uart_id: uart8
voltage:
name: 'BL0939 Voltage'
current_1:
name: 'BL0939 Current 1'
current_2:
name: 'BL0939 Current 2'
active_power_1:
name: 'BL0939 Active Power 1'
active_power_2:
name: 'BL0939 Active Power 2'
energy_1:
name: 'BL0939 Energy 1'
energy_2:
name: 'BL0939 Energy 2'
energy_total:
name: 'BL0939 Total energy'
- platform: bl0940
uart_id: uart3
voltage: