diff --git a/active/device_esphome/atom_s3_lite.yaml b/active/device_esphome/atom_s3_lite.yaml
new file mode 100644
index 0000000..c23a5b7
--- /dev/null
+++ b/active/device_esphome/atom_s3_lite.yaml
@@ -0,0 +1,67 @@
+esphome:
+  name: atom-s3-lite
+  friendly_name: Atom S3 Lite
+
+esp32:
+  board: m5stack-atoms3
+  framework:
+    type: arduino
+
+# Enable logging
+logger:
+  level: debug
+
+# Enable Home Assistant API
+api:
+  encryption:
+    key: !secret great_room_atom_echo_key
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+  domain: .reeselink.com
+  fast_connect: true
+  enable_btm: true
+  # Enable fallback hotspot (captive portal) in case wifi connection fails
+  ap:
+    ssid: "Great-Room-Atom-Echo"
+    password: !secret hotspot_password
+
+ota:
+  - platform: esphome
+    password: !secret ota_password
+
+captive_portal:
+
+external_components:
+  - source:
+      type: git
+      url: https://github.com/chill-Division/M5Stack-ESPHome/
+      ref: main
+    components: sonic_i2c
+
+i2c:
+  sda: 2
+  scl: 1
+  scan: true
+  id: bus_1
+
+sensor:
+ - platform: sonic_i2c
+   i2c_id: bus_1
+   address: 0x57
+   name: "Ultrasonic Sensor 1"
+   id: ultrasonic1
+   unit_of_measurement: mm
+   update_interval: 1s
+   filters:
+   - filter_out: nan
+   - lambda: |-
+      if (x == 0) {
+      return {};  // This filters out the reading
+      } else {
+      return x;   // This passes the reading through
+      }
+   - sliding_window_moving_average:
+       window_size: 1
+       send_every: 1
diff --git a/active/device_esphome/esphome.md b/active/device_esphome/esphome.md
index b98da0a..5de5c94 100644
--- a/active/device_esphome/esphome.md
+++ b/active/device_esphome/esphome.md
@@ -58,7 +58,7 @@ sudo usermod -a -G dialout ducoterra
 Then "run" your config file
 
 ```bash
-cd active/device_esp32
+cd active/device_esphome
 uv venv
 uv pip install esphome
 source .venv/bin/activate
diff --git a/active/device_esphome/great-room-atom-echo.yaml b/active/device_esphome/great-room-atom-echo.yaml
index 96748d6..82142b5 100644
--- a/active/device_esphome/great-room-atom-echo.yaml
+++ b/active/device_esphome/great-room-atom-echo.yaml
@@ -40,6 +40,39 @@ ota:
 
 captive_portal:
 
+external_components:
+  - source:
+      type: git
+      url: https://github.com/chill-Division/M5Stack-ESPHome/
+      ref: main
+    components: sonic_i2c
+
+i2c:
+  sda: 26
+  scl: 32
+  scan: true
+  id: bus_1
+
+sensor:
+ - platform: sonic_i2c
+   i2c_id: bus_1
+   address: 0x57
+   name: "Ultrasonic Sensor 1"
+   id: ultrasonic1
+   unit_of_measurement: mm
+   update_interval: 5s
+   filters:
+   - filter_out: nan
+   - lambda: |-
+      if (x == 0) {
+      return {};  // This filters out the reading
+      } else {
+      return x;   // This passes the reading through
+      }
+   - sliding_window_moving_average:
+       window_size: 10
+       send_every: 20
+
 button:
   - platform: factory_reset
     id: factory_reset_btn