diff --git a/chip_list_esp32.txt b/chip_list_esp32.txt
index deba2e8..dd65e3d 100644
--- a/chip_list_esp32.txt
+++ b/chip_list_esp32.txt
@@ -9,4 +9,5 @@ bedroom_tkm_lily2   192.168.87.47   esp32dev
 bedroom_tkm_lily1   192.168.87.48   esp32dev                                            ESP32 LilyGo T7 V1.5, with USB and battery
 lr_bright_87_49     192.168.87.49   ESP32/wemos_d1_mini32
 rf_bridge_87_60     192.168.87.60   esp01_1m                                            Sonoff RF bridge
-sonoff_s31a         192.168.87.71   esp01_1m
\ No newline at end of file
+sonoff_s31a         192.168.87.71   esp01_1m						Sonoff S31 power monitoring plug
+sonoff_s31b         87.72 now DHCP  esp01_1m						Sonoff S31 power monitoring plug
diff --git a/sonoff_s31b.yaml b/sonoff_s31b.yaml
new file mode 100644
index 0000000..0424285
--- /dev/null
+++ b/sonoff_s31b.yaml
@@ -0,0 +1,72 @@
+substitutions:
+  device_name: sonoff_s31b
+  #device_ip: 192.168.87.72
+
+esphome:
+  name: ${device_name}
+  platform: ESP8266
+  board: esp01_1m
+  #  platformio_options:
+  #    upload_speed: 115200 #baud, tagging this so grep will find it later  
+
+wifi:
+  ssid: "Meneely"
+  password: "punxsutawney1"
+  #  manual_ip:
+  #  use_address: 192.168.87.72
+    #static_ip: ${device_ip}
+    #  gateway: 192.168.86.1
+    # subnet: 255.255.255.0
+  # Enable fallback hotspot (captive portal) in case wifi connection fails
+  ap:
+    ssid: "ESPHOME"
+    password: "12345678"
+
+logger:
+  baud_rate: 0 # (UART logging interferes with cse7766)
+  
+api:
+  # reboot_timeout: 15min
+
+ota:
+
+# Device Specific Config
+
+uart:
+  rx_pin: RX
+  baud_rate: 4800
+
+binary_sensor:
+  - platform: gpio
+    pin:
+      number: GPIO0
+      mode: INPUT_PULLUP
+      inverted: True
+    name: ${device_name}_button
+    on_press:
+      - switch.toggle: relay
+  - platform: status
+    name: ${device_name}_status
+
+sensor:
+  - platform: wifi_signal
+    name: ${device_name}_wifi
+    update_interval: 60s
+  - platform: cse7766
+    current:
+      name: ${device_name}_current
+      accuracy_decimals: 1
+    voltage:
+      name: ${device_name}_voltage
+      accuracy_decimals: 1
+    power:
+      name: ${device_name}_power
+      accuracy_decimals: 1
+switch:
+  - platform: gpio
+    name: ${device_name}_relay
+    pin: GPIO12
+    id: relay
+
+status_led:
+  pin: GPIO13