From cb988edba814716ffb0fea9dae43c69c18ca51f4 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Fri, 3 Mar 2023 16:54:57 +0100
Subject: [PATCH] Prep PCF8574 virtual switch/button/relay

---
 tasmota/include/tasmota_template.h               | 5 +++++
 tasmota/language/af_AF.h                         | 1 +
 tasmota/language/bg_BG.h                         | 1 +
 tasmota/language/ca_AD.h                         | 1 +
 tasmota/language/cs_CZ.h                         | 1 +
 tasmota/language/de_DE.h                         | 1 +
 tasmota/language/el_GR.h                         | 1 +
 tasmota/language/en_GB.h                         | 1 +
 tasmota/language/es_ES.h                         | 1 +
 tasmota/language/fr_FR.h                         | 1 +
 tasmota/language/fy_NL.h                         | 1 +
 tasmota/language/he_HE.h                         | 1 +
 tasmota/language/hu_HU.h                         | 1 +
 tasmota/language/it_IT.h                         | 1 +
 tasmota/language/ko_KO.h                         | 1 +
 tasmota/language/nl_NL.h                         | 1 +
 tasmota/language/pl_PL.h                         | 1 +
 tasmota/language/pt_BR.h                         | 1 +
 tasmota/language/pt_PT.h                         | 1 +
 tasmota/language/ro_RO.h                         | 1 +
 tasmota/language/ru_RU.h                         | 1 +
 tasmota/language/sk_SK.h                         | 1 +
 tasmota/language/sv_SE.h                         | 1 +
 tasmota/language/tr_TR.h                         | 1 +
 tasmota/language/uk_UA.h                         | 1 +
 tasmota/language/vi_VN.h                         | 1 +
 tasmota/language/zh_CN.h                         | 1 +
 tasmota/language/zh_TW.h                         | 1 +
 tasmota/tasmota_xdrv_driver/xdrv_67_mcp23xxx.ino | 1 +
 29 files changed, 33 insertions(+)

diff --git a/tasmota/include/tasmota_template.h b/tasmota/include/tasmota_template.h
index ce1da3845..a85369d05 100644
--- a/tasmota/include/tasmota_template.h
+++ b/tasmota/include/tasmota_template.h
@@ -207,6 +207,7 @@ enum UserSelectablePins {
   GPIO_TUYAMCUBR_TX, GPIO_TUYAMCUBR_RX, // TuyaMCU Bridge
   GPIO_BIOPDU_PZEM0XX_TX, GPIO_BIOPDU_PZEM016_RX, GPIO_BIOPDU_BIT, // Biomine BioPDU 625x12
   GPIO_MCP23XXX_INT, GPIO_MCP23SXX_CS,  // MCP23xxx Int and SPI Chip select
+  GPIO_PCF8574_INT,                     // PCF8574 interrupt
   GPIO_SENSOR_END };
 
 // Error as warning to rethink GPIO usage with max 2045
@@ -461,6 +462,7 @@ const char kSensorNames[] PROGMEM =
   D_SENSOR_TUYAMCUBR_TX "|" D_SENSOR_TUYAMCUBR_RX "|"
   D_SENSOR_BIOPDU_PZEM0XX_TX "|" D_SENSOR_BIOPDU_PZEM016_RX "|" D_SENSOR_BIOPDU_BIT "|"
   D_SENSOR_MCP23XXX_INT "|" D_SENSOR_MCP23SXX_CS "|"
+  D_SENSOR_PCF8574_INT "|"
   ;
 
 const char kSensorNamesFixed[] PROGMEM =
@@ -556,6 +558,9 @@ const uint16_t kGpioNiceList[] PROGMEM = {
 #ifdef USE_I2C
   AGPIO(GPIO_I2C_SCL) + MAX_I2C,        // I2C SCL
   AGPIO(GPIO_I2C_SDA) + MAX_I2C,        // I2C SDA
+#ifdef USE_PCF8574
+  AGPIO(GPIO_PCF8574_INT),              // PCF8574 Interrupt
+#endif  // USE_PCF8574
 #endif
 
 #if defined(USE_I2S_AUDIO) || defined (USE_I2S)
diff --git a/tasmota/language/af_AF.h b/tasmota/language/af_AF.h
index 0f5570444..07875dc6b 100644
--- a/tasmota/language/af_AF.h
+++ b/tasmota/language/af_AF.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/bg_BG.h b/tasmota/language/bg_BG.h
index 608d08c19..cf62b369c 100644
--- a/tasmota/language/bg_BG.h
+++ b/tasmota/language/bg_BG.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/ca_AD.h b/tasmota/language/ca_AD.h
index dd67e976e..5b6d91022 100644
--- a/tasmota/language/ca_AD.h
+++ b/tasmota/language/ca_AD.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/cs_CZ.h b/tasmota/language/cs_CZ.h
index ae31b8d00..e94b5d5f3 100644
--- a/tasmota/language/cs_CZ.h
+++ b/tasmota/language/cs_CZ.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/de_DE.h b/tasmota/language/de_DE.h
index 41685e005..38d5581c8 100644
--- a/tasmota/language/de_DE.h
+++ b/tasmota/language/de_DE.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Puls"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/el_GR.h b/tasmota/language/el_GR.h
index e282c1237..0cd51bb00 100644
--- a/tasmota/language/el_GR.h
+++ b/tasmota/language/el_GR.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/en_GB.h b/tasmota/language/en_GB.h
index 5422de1e7..04c9b5bef 100644
--- a/tasmota/language/en_GB.h
+++ b/tasmota/language/en_GB.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/es_ES.h b/tasmota/language/es_ES.h
index 829e24a65..dd18ce59d 100644
--- a/tasmota/language/es_ES.h
+++ b/tasmota/language/es_ES.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "Cruce por cero"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/fr_FR.h b/tasmota/language/fr_FR.h
index 72e20c65d..0805fca30 100644
--- a/tasmota/language/fr_FR.h
+++ b/tasmota/language/fr_FR.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "Effet Hall"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/fy_NL.h b/tasmota/language/fy_NL.h
index 2a15fb8f0..f8169a531 100644
--- a/tasmota/language/fy_NL.h
+++ b/tasmota/language/fy_NL.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/he_HE.h b/tasmota/language/he_HE.h
index 7fb3b2406..e22418ce8 100644
--- a/tasmota/language/he_HE.h
+++ b/tasmota/language/he_HE.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/hu_HU.h b/tasmota/language/hu_HU.h
index 00f76e44f..2683f7d0c 100644
--- a/tasmota/language/hu_HU.h
+++ b/tasmota/language/hu_HU.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/it_IT.h b/tasmota/language/it_IT.h
index 6c7661298..66d3154cd 100644
--- a/tasmota/language/it_IT.h
+++ b/tasmota/language/it_IT.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS              "Impulsi ZC"
 #define D_SENSOR_HALLEFFECT             "Effetto hall"
 #define D_SENSOR_EPD_DATA               "EPD - Dati"
+#define D_SENSOR_PCF8574_INT            "PCF8574 - Int"
 #define D_SENSOR_MCP23XXX_INT           "MCP23xxx - Int"
 #define D_SENSOR_MCP23SXX_CS            "MCP23Sxx - CS"
 #define D_SENSOR_MCP2515_CS             "MCP2515 - CS"
diff --git a/tasmota/language/ko_KO.h b/tasmota/language/ko_KO.h
index 7f06bedc5..11a775dc7 100644
--- a/tasmota/language/ko_KO.h
+++ b/tasmota/language/ko_KO.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/nl_NL.h b/tasmota/language/nl_NL.h
index be5ef613c..3ede2ee6f 100644
--- a/tasmota/language/nl_NL.h
+++ b/tasmota/language/nl_NL.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/pl_PL.h b/tasmota/language/pl_PL.h
index d64808a38..214628a97 100644
--- a/tasmota/language/pl_PL.h
+++ b/tasmota/language/pl_PL.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "Efekt Halla"
 #define D_SENSOR_EPD_DATA      "EPD Dane"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/pt_BR.h b/tasmota/language/pt_BR.h
index 97dc980c0..5e4259319 100644
--- a/tasmota/language/pt_BR.h
+++ b/tasmota/language/pt_BR.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "Efeito Hall"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/pt_PT.h b/tasmota/language/pt_PT.h
index b77686997..f04c5992e 100644
--- a/tasmota/language/pt_PT.h
+++ b/tasmota/language/pt_PT.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "Efeito Hall"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/ro_RO.h b/tasmota/language/ro_RO.h
index f210b5c68..51c55c0b1 100644
--- a/tasmota/language/ro_RO.h
+++ b/tasmota/language/ro_RO.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/ru_RU.h b/tasmota/language/ru_RU.h
index 75dfe0002..672df0a48 100644
--- a/tasmota/language/ru_RU.h
+++ b/tasmota/language/ru_RU.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/sk_SK.h b/tasmota/language/sk_SK.h
index b97fddb6a..1d8818f9c 100644
--- a/tasmota/language/sk_SK.h
+++ b/tasmota/language/sk_SK.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/sv_SE.h b/tasmota/language/sv_SE.h
index d40650bd5..2b6161647 100644
--- a/tasmota/language/sv_SE.h
+++ b/tasmota/language/sv_SE.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/tr_TR.h b/tasmota/language/tr_TR.h
index e74f6c144..bb985fe59 100644
--- a/tasmota/language/tr_TR.h
+++ b/tasmota/language/tr_TR.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/uk_UA.h b/tasmota/language/uk_UA.h
index e06801fc1..e19dd746b 100644
--- a/tasmota/language/uk_UA.h
+++ b/tasmota/language/uk_UA.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/vi_VN.h b/tasmota/language/vi_VN.h
index b0a9ac266..1306a01fb 100644
--- a/tasmota/language/vi_VN.h
+++ b/tasmota/language/vi_VN.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/zh_CN.h b/tasmota/language/zh_CN.h
index d1d5918b1..2ef25fde3 100644
--- a/tasmota/language/zh_CN.h
+++ b/tasmota/language/zh_CN.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/language/zh_TW.h b/tasmota/language/zh_TW.h
index 6078ee069..247ad088d 100644
--- a/tasmota/language/zh_TW.h
+++ b/tasmota/language/zh_TW.h
@@ -895,6 +895,7 @@
 #define D_SENSOR_ZEROCROSS     "ZC Pulse"
 #define D_SENSOR_HALLEFFECT    "HallEffect"
 #define D_SENSOR_EPD_DATA      "EPD Data"
+#define D_SENSOR_PCF8574_INT   "PCF8574 Int"
 #define D_SENSOR_MCP23XXX_INT  "MCP23xxx Int"
 #define D_SENSOR_MCP23SXX_CS   "MCP23Sxx CS"
 #define D_SENSOR_MCP2515_CS    "MCP2515 CS"
diff --git a/tasmota/tasmota_xdrv_driver/xdrv_67_mcp23xxx.ino b/tasmota/tasmota_xdrv_driver/xdrv_67_mcp23xxx.ino
index 460cda2f4..6b67e0b46 100644
--- a/tasmota/tasmota_xdrv_driver/xdrv_67_mcp23xxx.ino
+++ b/tasmota/tasmota_xdrv_driver/xdrv_67_mcp23xxx.ino
@@ -723,6 +723,7 @@ void MCP23xInit(void) {
         } else {
           gpio = MCP23xRead16(MCP23X17_GPIOA);         // Clear MCP23x17 interrupt
         }
+        pinMode(Mcp23x.device[Mcp23x.chip].pin_int, INPUT_PULLUP);
         attachInterrupt(Mcp23x.device[Mcp23x.chip].pin_int, MCP23xInputIsr, CHANGE);
       }
     }