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Add support for INA226 Current/Power Monitor (#801)
* Add support for INA226 Current/Power Monitor * fix lint errors * fix narrowing conversion * Remove useless code Co-authored-by: Sergio Muñoz <sergio@iMac-de-Sergio.local>
This commit is contained in:
Sergio
Otto Winter
parent
f94e9b6b1e
commit
a919b015b4
5 changed files with 236 additions and 0 deletions
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esphome/components/ina226/__init__.py
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esphome/components/ina226/__init__.py
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esphome/components/ina226/ina226.cpp
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esphome/components/ina226/ina226.cpp
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#include "ina226.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace ina226 {
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static const char *TAG = "ina226";
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// | A0 | A1 | Address |
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// | GND | GND | 0x40 |
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// | GND | V_S+ | 0x41 |
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// | GND | SDA | 0x42 |
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// | GND | SCL | 0x43 |
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// | V_S+ | GND | 0x44 |
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// | V_S+ | V_S+ | 0x45 |
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// | V_S+ | SDA | 0x46 |
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// | V_S+ | SCL | 0x47 |
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// | SDA | GND | 0x48 |
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// | SDA | V_S+ | 0x49 |
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// | SDA | SDA | 0x4A |
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// | SDA | SCL | 0x4B |
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// | SCL | GND | 0x4C |
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// | SCL | V_S+ | 0x4D |
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// | SCL | SDA | 0x4E |
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// | SCL | SCL | 0x4F |
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static const uint8_t INA226_REGISTER_CONFIG = 0x00;
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static const uint8_t INA226_REGISTER_SHUNT_VOLTAGE = 0x01;
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static const uint8_t INA226_REGISTER_BUS_VOLTAGE = 0x02;
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static const uint8_t INA226_REGISTER_POWER = 0x03;
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static const uint8_t INA226_REGISTER_CURRENT = 0x04;
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static const uint8_t INA226_REGISTER_CALIBRATION = 0x05;
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void INA226Component::setup() {
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ESP_LOGCONFIG(TAG, "Setting up INA226...");
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// Config Register
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// 0bx000000000000000 << 15 RESET Bit (1 -> trigger reset)
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if (!this->write_byte_16(INA226_REGISTER_CONFIG, 0x8000)) {
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this->mark_failed();
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return;
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}
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delay(1);
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uint16_t config = 0x0000;
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// Averaging Mode AVG Bit Settings[11:9] (000 -> 1 sample, 001 -> 4 sample, 111 -> 1024 samples)
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config |= 0b0000001000000000;
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// Bus Voltage Conversion Time VBUSCT Bit Settings [8:6] (100 -> 1.1ms, 111 -> 8.244 ms)
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config |= 0b0000000100000000;
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// Shunt Voltage Conversion Time VSHCT Bit Settings [5:3] (100 -> 1.1ms, 111 -> 8.244 ms)
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config |= 0b0000000000100000;
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// Mode Settings [2:0] Combinations (111 -> Shunt and Bus, Continuous)
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config |= 0b0000000000000111;
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if (!this->write_byte_16(INA226_REGISTER_CONFIG, config)) {
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this->mark_failed();
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return;
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}
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// lsb is multiplied by 1000000 to store it as an integer value
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uint32_t lsb = static_cast<uint32_t>(ceilf(this->max_current_a_ * 1000000.0f / 32768));
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this->calibration_lsb_ = lsb;
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auto calibration = uint32_t(0.00512 / (lsb * this->shunt_resistance_ohm_ / 1000000.0f));
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ESP_LOGV(TAG, " Using LSB=%u calibration=%u", lsb, calibration);
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if (!this->write_byte_16(INA226_REGISTER_CALIBRATION, calibration)) {
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this->mark_failed();
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return;
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}
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}
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void INA226Component::dump_config() {
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ESP_LOGCONFIG(TAG, "INA226:");
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LOG_I2C_DEVICE(this);
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if (this->is_failed()) {
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ESP_LOGE(TAG, "Communication with INA226 failed!");
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return;
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}
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LOG_UPDATE_INTERVAL(this);
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LOG_SENSOR(" ", "Bus Voltage", this->bus_voltage_sensor_);
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LOG_SENSOR(" ", "Shunt Voltage", this->shunt_voltage_sensor_);
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LOG_SENSOR(" ", "Current", this->current_sensor_);
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LOG_SENSOR(" ", "Power", this->power_sensor_);
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}
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float INA226Component::get_setup_priority() const { return setup_priority::DATA; }
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void INA226Component::update() {
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if (this->bus_voltage_sensor_ != nullptr) {
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uint16_t raw_bus_voltage;
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if (!this->read_byte_16(INA226_REGISTER_BUS_VOLTAGE, &raw_bus_voltage, 1)) {
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this->status_set_warning();
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return;
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}
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float bus_voltage_v = int16_t(raw_bus_voltage) * 0.00125f;
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this->bus_voltage_sensor_->publish_state(bus_voltage_v);
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}
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if (this->shunt_voltage_sensor_ != nullptr) {
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uint16_t raw_shunt_voltage;
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if (!this->read_byte_16(INA226_REGISTER_SHUNT_VOLTAGE, &raw_shunt_voltage, 1)) {
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this->status_set_warning();
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}
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float shunt_voltage_v = int16_t(raw_shunt_voltage) * 0.0000025f;
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this->shunt_voltage_sensor_->publish_state(shunt_voltage_v);
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}
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if (this->current_sensor_ != nullptr) {
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uint16_t raw_current;
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if (!this->read_byte_16(INA226_REGISTER_CURRENT, &raw_current, 1)) {
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this->status_set_warning();
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return;
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}
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float current_ma = int16_t(raw_current) * (this->calibration_lsb_ / 1000.0f);
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this->current_sensor_->publish_state(current_ma / 1000.0f);
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}
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if (this->power_sensor_ != nullptr) {
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uint16_t raw_power;
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if (!this->read_byte_16(INA226_REGISTER_POWER, &raw_power, 1)) {
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this->status_set_warning();
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return;
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}
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float power_mw = int16_t(raw_power) * (this->calibration_lsb_ * 25.0f / 1000.0f);
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this->power_sensor_->publish_state(power_mw / 1000.0f);
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}
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this->status_clear_warning();
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}
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} // namespace ina226
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} // namespace esphome
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35
esphome/components/ina226/ina226.h
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esphome/components/ina226/ina226.h
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#pragma once
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#include "esphome/core/component.h"
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/components/i2c/i2c.h"
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namespace esphome {
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namespace ina226 {
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class INA226Component : public PollingComponent, public i2c::I2CDevice {
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public:
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void setup() override;
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void dump_config() override;
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float get_setup_priority() const override;
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void update() override;
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void set_shunt_resistance_ohm(float shunt_resistance_ohm) { shunt_resistance_ohm_ = shunt_resistance_ohm; }
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void set_max_current_a(float max_current_a) { max_current_a_ = max_current_a; }
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void set_bus_voltage_sensor(sensor::Sensor *bus_voltage_sensor) { bus_voltage_sensor_ = bus_voltage_sensor; }
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void set_shunt_voltage_sensor(sensor::Sensor *shunt_voltage_sensor) { shunt_voltage_sensor_ = shunt_voltage_sensor; }
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void set_current_sensor(sensor::Sensor *current_sensor) { current_sensor_ = current_sensor; }
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void set_power_sensor(sensor::Sensor *power_sensor) { power_sensor_ = power_sensor; }
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protected:
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float shunt_resistance_ohm_;
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float max_current_a_;
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uint32_t calibration_lsb_;
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sensor::Sensor *bus_voltage_sensor_{nullptr};
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sensor::Sensor *shunt_voltage_sensor_{nullptr};
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sensor::Sensor *current_sensor_{nullptr};
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sensor::Sensor *power_sensor_{nullptr};
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};
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} // namespace ina226
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} // namespace esphome
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48
esphome/components/ina226/sensor.py
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esphome/components/ina226/sensor.py
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@ -0,0 +1,48 @@
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# coding=utf-8
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import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.components import i2c, sensor
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from esphome.const import CONF_BUS_VOLTAGE, CONF_CURRENT, CONF_ID, \
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CONF_MAX_CURRENT, CONF_POWER, CONF_SHUNT_RESISTANCE, \
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CONF_SHUNT_VOLTAGE, ICON_FLASH, UNIT_VOLT, UNIT_AMPERE, UNIT_WATT
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DEPENDENCIES = ['i2c']
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ina226_ns = cg.esphome_ns.namespace('ina226')
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INA226Component = ina226_ns.class_('INA226Component', cg.PollingComponent, i2c.I2CDevice)
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CONFIG_SCHEMA = cv.Schema({
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cv.GenerateID(): cv.declare_id(INA226Component),
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cv.Optional(CONF_BUS_VOLTAGE): sensor.sensor_schema(UNIT_VOLT, ICON_FLASH, 2),
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cv.Optional(CONF_SHUNT_VOLTAGE): sensor.sensor_schema(UNIT_VOLT, ICON_FLASH, 2),
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cv.Optional(CONF_CURRENT): sensor.sensor_schema(UNIT_AMPERE, ICON_FLASH, 3),
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cv.Optional(CONF_POWER): sensor.sensor_schema(UNIT_WATT, ICON_FLASH, 2),
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cv.Optional(CONF_SHUNT_RESISTANCE, default=0.1): cv.All(cv.resistance, cv.Range(min=0.0)),
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cv.Optional(CONF_MAX_CURRENT, default=3.2): cv.All(cv.current, cv.Range(min=0.0)),
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}).extend(cv.polling_component_schema('60s')).extend(i2c.i2c_device_schema(0x40))
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def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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yield cg.register_component(var, config)
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yield i2c.register_i2c_device(var, config)
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cg.add(var.set_shunt_resistance_ohm(config[CONF_SHUNT_RESISTANCE]))
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cg.add(var.set_max_current_a(config[CONF_MAX_CURRENT]))
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if CONF_BUS_VOLTAGE in config:
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sens = yield sensor.new_sensor(config[CONF_BUS_VOLTAGE])
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cg.add(var.set_bus_voltage_sensor(sens))
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if CONF_SHUNT_VOLTAGE in config:
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sens = yield sensor.new_sensor(config[CONF_SHUNT_VOLTAGE])
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cg.add(var.set_shunt_voltage_sensor(sens))
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if CONF_CURRENT in config:
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sens = yield sensor.new_sensor(config[CONF_CURRENT])
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cg.add(var.set_current_sensor(sens))
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if CONF_POWER in config:
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sens = yield sensor.new_sensor(config[CONF_POWER])
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cg.add(var.set_power_sensor(sens))
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@ -424,6 +424,19 @@ sensor:
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max_voltage: 32.0V
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max_current: 3.2A
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update_interval: 15s
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- platform: ina226
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address: 0x40
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shunt_resistance: 0.1 ohm
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current:
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name: "INA226 Current"
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power:
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name: "INA226 Power"
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bus_voltage:
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name: "INA226 Bus Voltage"
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shunt_voltage:
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name: "INA226 Shunt Voltage"
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max_current: 3.2A
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update_interval: 15s
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- platform: ina3221
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address: 0x40
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channel_1:
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