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Add KMeterISO component. (#5170)
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
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5 changed files with 178 additions and 0 deletions
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esphome/components/kmeteriso/__init__.py
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esphome/components/kmeteriso/__init__.py
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esphome/components/kmeteriso/kmeteriso.cpp
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esphome/components/kmeteriso/kmeteriso.cpp
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#include "kmeteriso.h"
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#include "esphome/core/hal.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace kmeteriso {
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static const char *const TAG = "kmeteriso.sensor";
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static const uint8_t KMETER_ERROR_STATUS_REG = 0x20;
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static const uint8_t KMETER_TEMP_VAL_REG = 0x00;
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static const uint8_t KMETER_INTERNAL_TEMP_VAL_REG = 0x10;
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static const uint8_t KMETER_FIRMWARE_VERSION_REG = 0xFE;
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void KMeterISOComponent::setup() {
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ESP_LOGCONFIG(TAG, "Setting up KMeterISO...");
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this->error_code_ = NONE;
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// Mark as not failed before initializing. Some devices will turn off sensors to save on batteries
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// and when they come back on, the COMPONENT_STATE_FAILED bit must be unset on the component.
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if ((this->component_state_ & COMPONENT_STATE_MASK) == COMPONENT_STATE_FAILED) {
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this->component_state_ &= ~COMPONENT_STATE_MASK;
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this->component_state_ |= COMPONENT_STATE_CONSTRUCTION;
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}
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auto err = this->bus_->writev(this->address_, nullptr, 0);
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if (err == esphome::i2c::ERROR_OK) {
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ESP_LOGCONFIG(TAG, "Could write to the address %d.", this->address_);
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} else {
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ESP_LOGCONFIG(TAG, "Could not write to the address %d.", this->address_);
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this->error_code_ = COMMUNICATION_FAILED;
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this->mark_failed();
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return;
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}
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uint8_t read_buf[4] = {1};
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if (!this->read_bytes(KMETER_ERROR_STATUS_REG, read_buf, 1)) {
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ESP_LOGCONFIG(TAG, "Could not read from the device.");
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this->error_code_ = COMMUNICATION_FAILED;
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this->mark_failed();
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return;
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}
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if (read_buf[0] != 0) {
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ESP_LOGCONFIG(TAG, "The device is not ready.");
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this->error_code_ = STATUS_FAILED;
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this->mark_failed();
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return;
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}
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ESP_LOGCONFIG(TAG, "The device was successfully setup.");
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}
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float KMeterISOComponent::get_setup_priority() const { return setup_priority::DATA; }
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void KMeterISOComponent::update() {
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uint8_t read_buf[4];
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if (this->temperature_sensor_ != nullptr) {
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if (!this->read_bytes(KMETER_TEMP_VAL_REG, read_buf, 4)) {
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ESP_LOGW(TAG, "Error reading temperature.");
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} else {
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int32_t temp = encode_uint32(read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
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float temp_f = temp / 100.0;
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ESP_LOGV(TAG, "Got temperature=%.2f °C", temp_f);
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this->temperature_sensor_->publish_state(temp_f);
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}
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}
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if (this->internal_temperature_sensor_ != nullptr) {
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if (!this->read_bytes(KMETER_INTERNAL_TEMP_VAL_REG, read_buf, 4)) {
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ESP_LOGW(TAG, "Error reading internal temperature.");
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return;
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} else {
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int32_t internal_temp = encode_uint32(read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
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float internal_temp_f = internal_temp / 100.0;
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ESP_LOGV(TAG, "Got internal temperature=%.2f °C", internal_temp_f);
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this->internal_temperature_sensor_->publish_state(internal_temp_f);
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}
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}
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}
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} // namespace kmeteriso
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} // namespace esphome
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esphome/components/kmeteriso/kmeteriso.h
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esphome/components/kmeteriso/kmeteriso.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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#include "esphome/components/i2c/i2c_bus.h"
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namespace esphome {
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namespace kmeteriso {
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/// This class implements support for the KMeterISO thermocouple sensor.
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class KMeterISOComponent : public PollingComponent, public i2c::I2CDevice {
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public:
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void set_temperature_sensor(sensor::Sensor *t) { this->temperature_sensor_ = t; }
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void set_internal_temperature_sensor(sensor::Sensor *t) { this->internal_temperature_sensor_ = t; }
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// ========== INTERNAL METHODS ==========
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// (In most use cases you won't need these)
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void setup() override;
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float get_setup_priority() const override;
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void update() override;
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protected:
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sensor::Sensor *temperature_sensor_{nullptr};
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sensor::Sensor *internal_temperature_sensor_{nullptr};
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enum ErrorCode {
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NONE = 0,
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COMMUNICATION_FAILED,
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STATUS_FAILED,
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} error_code_{NONE};
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};
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} // namespace kmeteriso
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} // namespace esphome
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esphome/components/kmeteriso/sensor.py
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esphome/components/kmeteriso/sensor.py
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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 (
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CONF_ID,
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CONF_TEMPERATURE,
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DEVICE_CLASS_TEMPERATURE,
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STATE_CLASS_MEASUREMENT,
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UNIT_CELSIUS,
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ENTITY_CATEGORY_DIAGNOSTIC,
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)
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CONF_INTERNAL_TEMPERATURE = "internal_temperature"
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DEPENDENCIES = ["i2c"]
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kmeteriso_ns = cg.esphome_ns.namespace("kmeteriso")
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KMeterISOComponent = kmeteriso_ns.class_(
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"KMeterISOComponent", cg.PollingComponent, i2c.I2CDevice
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)
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CONFIG_SCHEMA = (
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cv.Schema(
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{
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cv.GenerateID(): cv.declare_id(KMeterISOComponent),
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cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
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unit_of_measurement=UNIT_CELSIUS,
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accuracy_decimals=2,
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device_class=DEVICE_CLASS_TEMPERATURE,
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state_class=STATE_CLASS_MEASUREMENT,
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),
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cv.Optional(CONF_INTERNAL_TEMPERATURE): sensor.sensor_schema(
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unit_of_measurement=UNIT_CELSIUS,
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device_class=DEVICE_CLASS_TEMPERATURE,
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state_class=STATE_CLASS_MEASUREMENT,
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entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
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),
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}
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)
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.extend(cv.polling_component_schema("60s"))
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.extend(i2c.i2c_device_schema(0x66))
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)
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async def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_component(var, config)
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await i2c.register_i2c_device(var, config)
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if temperature_config := config.get(CONF_TEMPERATURE):
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sens = await sensor.new_sensor(temperature_config)
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cg.add(var.set_temperature_sensor(sens))
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if internal_temperature_config := config.get(CONF_INTERNAL_TEMPERATURE):
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sens = await sensor.new_sensor(internal_temperature_config)
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cg.add(var.set_internal_temperature_sensor(sens))
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@ -792,6 +792,13 @@ sensor:
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name: INA3221 Channel 1 Shunt Voltage
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update_interval: 15s
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i2c_id: i2c_bus
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- platform: kmeteriso
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temperature:
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name: Outside Temperature
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internal_temperature:
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name: Internal Ttemperature
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update_interval: 15s
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i2c_id: i2c_bus
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- platform: kalman_combinator
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name: Kalman-filtered temperature
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process_std_dev: 0.00139
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