add kuntze component (#4411)

* add kuntze component

* fixes

* more lint

---------

Co-authored-by: Samuel Sieb <samuel@sieb.net>

esphome/components/kuntze/kuntze.cpp

@@ -0,0 +1,91 @@
+#include "kuntze.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace kuntze {
+
+static const char *const TAG = "kuntze";
+
+static const uint8_t CMD_READ_REG = 0x03;
+static const uint16_t REGISTER[] = {4136, 4160, 4680, 6000, 4688, 4728, 5832};
+
+void Kuntze::on_modbus_data(const std::vector<uint8_t> &data) {
+  auto get_16bit = [&](int i) -> uint16_t { return (uint16_t(data[i * 2]) << 8) | uint16_t(data[i * 2 + 1]); };
+
+  this->waiting_ = false;
+  ESP_LOGV(TAG, "Data: %s", hexencode(data).c_str());
+
+  float value = (float) get_16bit(0);
+  for (int i = 0; i < data[3]; i++)
+    value /= 10.0;
+  switch (this->state_) {
+    case 1:
+      ESP_LOGD(TAG, "pH=%.1f", value);
+      if (this->ph_sensor_ != nullptr)
+        this->ph_sensor_->publish_state(value);
+      break;
+    case 2:
+      ESP_LOGD(TAG, "temperature=%.1f", value);
+      if (this->temperature_sensor_ != nullptr)
+        this->temperature_sensor_->publish_state(value);
+      break;
+    case 3:
+      ESP_LOGD(TAG, "DIS1=%.1f", value);
+      if (this->dis1_sensor_ != nullptr)
+        this->dis1_sensor_->publish_state(value);
+      break;
+    case 4:
+      ESP_LOGD(TAG, "DIS2=%.1f", value);
+      if (this->dis2_sensor_ != nullptr)
+        this->dis2_sensor_->publish_state(value);
+      break;
+    case 5:
+      ESP_LOGD(TAG, "REDOX=%.1f", value);
+      if (this->redox_sensor_ != nullptr)
+        this->redox_sensor_->publish_state(value);
+      break;
+    case 6:
+      ESP_LOGD(TAG, "EC=%.1f", value);
+      if (this->ec_sensor_ != nullptr)
+        this->ec_sensor_->publish_state(value);
+      break;
+    case 7:
+      ESP_LOGD(TAG, "OCI=%.1f", value);
+      if (this->oci_sensor_ != nullptr)
+        this->oci_sensor_->publish_state(value);
+      break;
+  }
+  if (++this->state_ > 7)
+    this->state_ = 0;
+}
+
+void Kuntze::loop() {
+  uint32_t now = millis();
+  // timeout after 15 seconds
+  if (this->waiting_ && (now - this->last_send_ > 15000)) {
+    ESP_LOGW(TAG, "timed out waiting for response");
+    this->waiting_ = false;
+  }
+  if (this->waiting_ || (this->state_ == 0))
+    return;
+  this->last_send_ = now;
+  send(CMD_READ_REG, REGISTER[this->state_ - 1], 2);
+  this->waiting_ = true;
+}
+
+void Kuntze::update() { this->state_ = 1; }
+
+void Kuntze::dump_config() {
+  ESP_LOGCONFIG(TAG, "Kuntze:");
+  ESP_LOGCONFIG(TAG, "  Address: 0x%02X", this->address_);
+  LOG_SENSOR("", "pH", this->ph_sensor_);
+  LOG_SENSOR("", "temperature", this->temperature_sensor_);
+  LOG_SENSOR("", "DIS1", this->dis1_sensor_);
+  LOG_SENSOR("", "DIS2", this->dis2_sensor_);
+  LOG_SENSOR("", "REDOX", this->redox_sensor_);
+  LOG_SENSOR("", "EC", this->ec_sensor_);
+  LOG_SENSOR("", "OCI", this->oci_sensor_);
+}
+
+}  // namespace kuntze
+}  // namespace esphome

esphome/components/kuntze/kuntze.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/modbus/modbus.h"
+
+namespace esphome {
+namespace kuntze {
+
+class Kuntze : public PollingComponent, public modbus::ModbusDevice {
+ public:
+  void set_ph_sensor(sensor::Sensor *ph_sensor) { ph_sensor_ = ph_sensor; }
+  void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
+  void set_dis1_sensor(sensor::Sensor *dis1_sensor) { dis1_sensor_ = dis1_sensor; }
+  void set_dis2_sensor(sensor::Sensor *dis2_sensor) { dis2_sensor_ = dis2_sensor; }
+  void set_redox_sensor(sensor::Sensor *redox_sensor) { redox_sensor_ = redox_sensor; }
+  void set_ec_sensor(sensor::Sensor *ec_sensor) { ec_sensor_ = ec_sensor; }
+  void set_oci_sensor(sensor::Sensor *oci_sensor) { oci_sensor_ = oci_sensor; }
+
+  void loop() override;
+  void update() override;
+
+  void on_modbus_data(const std::vector<uint8_t> &data) override;
+
+  void dump_config() override;
+
+ protected:
+  int state_{0};
+  bool waiting_{false};
+  uint32_t last_send_{0};
+
+  sensor::Sensor *ph_sensor_{nullptr};
+  sensor::Sensor *temperature_sensor_{nullptr};
+  sensor::Sensor *dis1_sensor_{nullptr};
+  sensor::Sensor *dis2_sensor_{nullptr};
+  sensor::Sensor *redox_sensor_{nullptr};
+  sensor::Sensor *ec_sensor_{nullptr};
+  sensor::Sensor *oci_sensor_{nullptr};
+};
+
+}  // namespace kuntze
+}  // namespace esphome

esphome/components/kuntze/sensor.py

@@ -0,0 +1,123 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import sensor, modbus
+from esphome.const import (
+    CONF_ID,
+    CONF_EC,
+    CONF_PH,
+    CONF_TEMPERATURE,
+    ICON_EMPTY,
+    ICON_THERMOMETER,
+    UNIT_CELSIUS,
+    UNIT_EMPTY,
+    UNIT_PH,
+    STATE_CLASS_MEASUREMENT,
+    DEVICE_CLASS_EMPTY,
+    DEVICE_CLASS_TEMPERATURE,
+)
+
+CODEOWNERS = ["@ssieb"]
+
+AUTO_LOAD = ["modbus"]
+
+kuntze_ns = cg.esphome_ns.namespace("kuntze")
+Kuntze = kuntze_ns.class_("Kuntze", cg.PollingComponent, modbus.ModbusDevice)
+
+CONF_DIS1 = "dis1"
+CONF_DIS2 = "dis2"
+CONF_REDOX = "redox"
+CONF_OCI = "oci"
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(Kuntze),
+            cv.Optional(CONF_PH): sensor.sensor_schema(
+                unit_of_measurement=UNIT_PH,
+                icon=ICON_EMPTY,
+                accuracy_decimals=1,
+                state_class=STATE_CLASS_MEASUREMENT,
+                device_class=DEVICE_CLASS_EMPTY,
+            ),
+            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_CELSIUS,
+                icon=ICON_THERMOMETER,
+                accuracy_decimals=1,
+                state_class=STATE_CLASS_MEASUREMENT,
+                device_class=DEVICE_CLASS_TEMPERATURE,
+            ),
+            cv.Optional(CONF_DIS1): sensor.sensor_schema(
+                unit_of_measurement=UNIT_EMPTY,
+                icon=ICON_EMPTY,
+                accuracy_decimals=1,
+                state_class=STATE_CLASS_MEASUREMENT,
+                device_class=DEVICE_CLASS_EMPTY,
+            ),
+            cv.Optional(CONF_DIS2): sensor.sensor_schema(
+                unit_of_measurement=UNIT_EMPTY,
+                icon=ICON_EMPTY,
+                accuracy_decimals=1,
+                state_class=STATE_CLASS_MEASUREMENT,
+                device_class=DEVICE_CLASS_EMPTY,
+            ),
+            cv.Optional(CONF_REDOX): sensor.sensor_schema(
+                unit_of_measurement=UNIT_EMPTY,
+                icon=ICON_EMPTY,
+                accuracy_decimals=1,
+                state_class=STATE_CLASS_MEASUREMENT,
+                device_class=DEVICE_CLASS_EMPTY,
+            ),
+            cv.Optional(CONF_EC): sensor.sensor_schema(
+                unit_of_measurement=UNIT_EMPTY,
+                icon=ICON_EMPTY,
+                accuracy_decimals=1,
+                state_class=STATE_CLASS_MEASUREMENT,
+                device_class=DEVICE_CLASS_EMPTY,
+            ),
+            cv.Optional(CONF_OCI): sensor.sensor_schema(
+                unit_of_measurement=UNIT_EMPTY,
+                icon=ICON_EMPTY,
+                accuracy_decimals=1,
+                state_class=STATE_CLASS_MEASUREMENT,
+                device_class=DEVICE_CLASS_EMPTY,
+            ),
+        }
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(modbus.modbus_device_schema(0x01))
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await modbus.register_modbus_device(var, config)
+
+    if CONF_PH in config:
+        conf = config[CONF_PH]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_ph_sensor(sens))
+    if CONF_TEMPERATURE in config:
+        conf = config[CONF_TEMPERATURE]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_temperature_sensor(sens))
+    if CONF_DIS1 in config:
+        conf = config[CONF_DIS1]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_dis1_sensor(sens))
+    if CONF_DIS2 in config:
+        conf = config[CONF_DIS2]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_dis2_sensor(sens))
+    if CONF_REDOX in config:
+        conf = config[CONF_REDOX]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_redox_sensor(sens))
+    if CONF_EC in config:
+        conf = config[CONF_EC]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_ec_sensor(sens))
+    if CONF_OCI in config:
+        conf = config[CONF_OCI]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_oci_sensor(sens))