diff --git a/devices/buzzer.yaml b/devices/buzzer.yaml
index 50bf3e0..f91b773 100644
--- a/devices/buzzer.yaml
+++ b/devices/buzzer.yaml
@@ -1,7 +1,3 @@
-#i2c  address: 0x26 input pcf io
-#i2c  address: 0x27 input pcf io
-#i2c  address: 0x40 input ina219 power
-#i2c  address: 0x68 input rtc ds1307
 switch:
   - platform: gpio
     id: buzzer
@@ -11,16 +7,3 @@ switch:
       mode:
         output: true
       inverted: false
-pcf8574:
-  - id: 'pcf_inputs_1to14'
-    i2c_id: bus_a
-    address: 0x20
-    pcf8575: true
-  - id: 'pcf_inputs_15to28'
-    i2c_id: bus_a
-    address: 0x21
-    pcf8575: true
-  - id: 'pcf_inputs_28to35_menu'
-    i2c_id: bus_a
-    address: 0x22
-    pcf8575: false