Add resistance_sampler interface for config validation (#5718)

CODEOWNERS

@@ -246,6 +246,7 @@ esphome/components/radon_eye_rd200/* @jeffeb3
 esphome/components/rc522/* @glmnet
 esphome/components/rc522_i2c/* @glmnet
 esphome/components/rc522_spi/* @glmnet
+esphome/components/resistance_sampler/* @jesserockz
 esphome/components/restart/* @esphome/core
 esphome/components/rf_bridge/* @jesserockz
 esphome/components/rgbct/* @jesserockz

esphome/components/ntc/sensor.py

@@ -2,7 +2,7 @@ from math import log
 
 import esphome.config_validation as cv
 import esphome.codegen as cg
-from esphome.components import sensor
+from esphome.components import sensor, resistance_sampler
 from esphome.const import (
     CONF_CALIBRATION,
     CONF_REFERENCE_RESISTANCE,
@@ -15,6 +15,8 @@ from esphome.const import (
     UNIT_CELSIUS,
 )
 
+AUTO_LOAD = ["resistance_sampler"]
+
 ntc_ns = cg.esphome_ns.namespace("ntc")
 NTC = ntc_ns.class_("NTC", cg.Component, sensor.Sensor)
 
@@ -124,7 +126,7 @@ CONFIG_SCHEMA = (
     )
     .extend(
         {
-            cv.Required(CONF_SENSOR): cv.use_id(sensor.Sensor),
+            cv.Required(CONF_SENSOR): cv.use_id(resistance_sampler.ResistanceSampler),
             cv.Required(CONF_CALIBRATION): process_calibration,
         }
     )

esphome/components/resistance/resistance_sensor.h

@@ -1,7 +1,8 @@
 #pragma once
 
-#include "esphome/core/component.h"
+#include "esphome/components/resistance_sampler/resistance_sampler.h"
 #include "esphome/components/sensor/sensor.h"
+#include "esphome/core/component.h"
 
 namespace esphome {
 namespace resistance {
@@ -11,7 +12,7 @@ enum ResistanceConfiguration {
   DOWNSTREAM,
 };
 
-class ResistanceSensor : public Component, public sensor::Sensor {
+class ResistanceSensor : public Component, public sensor::Sensor, resistance_sampler::ResistanceSampler {
  public:
   void set_sensor(Sensor *sensor) { sensor_ = sensor; }
   void set_configuration(ResistanceConfiguration configuration) { configuration_ = configuration; }

esphome/components/resistance/sensor.py

@@ -1,6 +1,6 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome.components import sensor
+from esphome.components import sensor, resistance_sampler
 from esphome.const import (
     CONF_SENSOR,
     STATE_CLASS_MEASUREMENT,
@@ -8,8 +8,15 @@ from esphome.const import (
     ICON_FLASH,
 )
 
+AUTO_LOAD = ["resistance_sampler"]
+
 resistance_ns = cg.esphome_ns.namespace("resistance")
-ResistanceSensor = resistance_ns.class_("ResistanceSensor", cg.Component, sensor.Sensor)
+ResistanceSensor = resistance_ns.class_(
+    "ResistanceSensor",
+    cg.Component,
+    sensor.Sensor,
+    resistance_sampler.ResistanceSampler,
+)
 
 CONF_REFERENCE_VOLTAGE = "reference_voltage"
 CONF_CONFIGURATION = "configuration"

esphome/components/resistance_sampler/__init__.py

@@ -0,0 +1,6 @@
+import esphome.codegen as cg
+
+resistance_sampler_ns = cg.esphome_ns.namespace("resistance_sampler")
+ResistanceSampler = resistance_sampler_ns.class_("ResistanceSampler")
+
+CODEOWNERS = ["@jesserockz"]

esphome/components/resistance_sampler/resistance_sampler.h

@@ -0,0 +1,10 @@
+#pragma once
+
+namespace esphome {
+namespace resistance_sampler {
+
+/// Abstract interface to mark components that provide resistance values.
+class ResistanceSampler {};
+
+}  // namespace resistance_sampler
+}  // namespace esphome