diff --git a/esphome/components/sensor/ppd42x.py b/esphome/components/sensor/ppd42x.py
index 70b0a27732..2a93450c09 100644
--- a/esphome/components/sensor/ppd42x.py
+++ b/esphome/components/sensor/ppd42x.py
@@ -3,7 +3,7 @@ import voluptuous as vol
 from esphome import pins
 from esphome.components import sensor
 import esphome.config_validation as cv
-from esphome.const import CONF_PM_2_5, CONF_ID, CONF_PM_10_0, CONF_PM_2_5, CONF_NAME, CONF_PM_10_0, \
+from esphome.const import  CONF_ID, CONF_PM_10_0, CONF_PM_2_5, CONF_NAME, \
     CONF_UPDATE_INTERVAL, CONF_TIMEOUT
 from esphome.cpp_generator import Pvariable, add
 from esphome.cpp_helpers import gpio_input_pin_expression, gpio_output_pin_expression, \
@@ -12,15 +12,15 @@ from esphome.cpp_types import App
 
 
 Ppd42xSensorComponent = sensor.sensor_ns.class_('Ppd42xSensorComponent',
-                                                    sensor.PollingSensorComponent)
+                                                sensor.PollingSensorComponent)
 
 
 PLATFORM_SCHEMA = cv.nameable(sensor.SENSOR_PLATFORM_SCHEMA.extend({
     cv.GenerateID(): cv.declare_variable_id(Ppd42xSensorComponent),
     vol.Optional(CONF_PM_10_0): vol.All(pins.internal_gpio_input_pin_schema,
-                                    pins.validate_has_interrupt),
+                                        pins.validate_has_interrupt),
     vol.Optional(CONF_PM_2_5):  vol.All(pins.internal_gpio_input_pin_schema,
-                                    pins.validate_has_interrupt),
+                                        pins.validate_has_interrupt),
     vol.Required(CONF_TIMEOUT): cv.positive_time_period_microseconds,
     vol.Optional(CONF_UPDATE_INTERVAL): cv.update_interval,
 
@@ -33,7 +33,7 @@ def to_code(config):
     for pm_02_5 in gpio_input_pin_expression(config[CONF_PM_2_5]):
         yield
     rhs = App.make_ppd42x_sensor(config[CONF_NAME], pm_10_0, pm_02_5,
-                                     config.get(CONF_UPDATE_INTERVAL))
+                                 config.get(CONF_UPDATE_INTERVAL))
     ppd42x = Pvariable(config[CONF_ID], rhs)
 
     if CONF_TIMEOUT in config:
diff --git a/tests/test1.yaml b/tests/test1.yaml
index ff75ac29eb..d63f0c171b 100644
--- a/tests/test1.yaml
+++ b/tests/test1.yaml
@@ -5,8 +5,8 @@ esphome:
   # Use this for testing while developing:
   # Note the travis check for esphome PRs will fail until the
   # esphome-core PR has been merged.
-  # esphome_core_version:
-  #   local: ~/path/to/esphome-core
+  esphome_core_version:
+    local: /home/pi4homez/github2/esphome-core
   use_custom_code: false
   on_boot:
     priority: 150.0
@@ -502,6 +502,15 @@ sensor:
     update_interval: 5min
     rx_only: false
 
+  - platform: ppd42x
+    timeout: 30000 # mandatory
+    pm_2_5:
+      name: "SDS011 PM2.5"
+    pm_10_0:
+      name: "SDS011 PM10.0"
+    update_interval: 5min
+
+
 
 esp32_touch:
   setup_mode: False
diff --git a/tests/test2.yaml b/tests/test2.yaml
index 03bb24578e..3608d83a97 100644
--- a/tests/test2.yaml
+++ b/tests/test2.yaml
@@ -5,8 +5,8 @@ esphome:
   # Use this for testing while developing:
   # Note the travis check for esphome PRs will fail until the
   # esphome-core PR has been merged.
-  # esphome_core_version:
-  #   local: ~/path/to/esphome-core
+  esphome_core_version:
+     local:  /home/pi4homez/github2/esphome-core
   build_path: build/test2
 
 substitutions:
diff --git a/tests/test3.yaml b/tests/test3.yaml
index ec68e6c503..26dd96e7ae 100644
--- a/tests/test3.yaml
+++ b/tests/test3.yaml
@@ -5,8 +5,8 @@ esphome:
   # Use this for testing while developing:
   # Note the travis check for esphome PRs will fail until the
   # esphome-core PR has been merged.
-  # esphome_core_version:
-  #   local: ~/path/to/esphome-core
+  esphome_core_version:
+     local: /home/pi4homez/github2/esphome-core
   build_path: build/test3
 
 substitutions: