diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 90ec175..63cf0fc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -117,7 +117,7 @@ build_idf_master:
     matrix:
       - SUBDIR: ["serial", "tcp", "generic"]
   variables:
-    TEST_TARGETS: "esp32 esp32s2 esp32s3 esp32c2 esp32c3 esp32c6 esp32h2 esp32p4"
+    TEST_TARGETS: "esp32 esp32s2 esp32s3 esp32c2 esp32c3 esp32c5 esp32c6 esp32h2 esp32p4"
 
 build_idf_v5.0:
   extends: .build_pytest_template
diff --git a/test/serial/mb_serial_master/README.md b/test/serial/mb_serial_master/README.md
index 5f1d807..178ae99 100644
--- a/test/serial/mb_serial_master/README.md
+++ b/test/serial/mb_serial_master/README.md
@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- | -------- | -------- |
 
 # Modbus Master Example
 
@@ -96,8 +96,8 @@ Define the communication mode parameter for master and slave in Kconfig - CONFIG
 Configure the slave address for each slave in the Modbus segment (the CONFIG_MB_SLAVE_ADDR in Kconfig).
 ```
   ------------------------------------------------------------------------------------------------------------------------------
-  |  UART Interface       | #define            | Default pins for      | Default pins for          | External RS485 Driver Pin |
-  |                       |                    | ESP32 (C6)            | ESP32-S2 (S3, C3, C2, H2) |                           |
+  |  UART Interface       | #define            | Default pins for      | Default pins for ESP32-S2,| External RS485 Driver Pin |
+  |                       |                    | ESP32 (C6, P4)        | (S3, C3, C2, C5, H2)      |                           |
   | ----------------------|--------------------|-----------------------|---------------------------|---------------------------|
   | Transmit Data (TxD)   | CONFIG_MB_UART_TXD | GPIO23                | GPIO9                     | DI                        |
   | Receive Data (RxD)    | CONFIG_MB_UART_RXD | GPIO22                | GPIO8                     | RO                        |
diff --git a/test/serial/mb_serial_master/main/Kconfig.projbuild b/test/serial/mb_serial_master/main/Kconfig.projbuild
index e81e0f4..a6827d4 100644
--- a/test/serial/mb_serial_master/main/Kconfig.projbuild
+++ b/test/serial/mb_serial_master/main/Kconfig.projbuild
@@ -3,12 +3,12 @@ menu "Modbus Example Configuration"
     config MB_UART_PORT_ONE
         bool
         default y
-        depends on (ESP_CONSOLE_UART_NUM !=1) && (SOC_UART_NUM > 1)
+        depends on (ESP_CONSOLE_UART_NUM !=1) && (SOC_UART_HP_NUM > 1)
 
     config MB_UART_PORT_TWO
         bool
         default y
-        depends on (ESP_CONSOLE_UART_NUM !=2) && (SOC_UART_NUM > 2)
+        depends on (ESP_CONSOLE_UART_NUM !=2) && (SOC_UART_HP_NUM > 2)
 
     config MB_UART_PORT_NUM
         int "UART port number"
@@ -31,14 +31,15 @@ menu "Modbus Example Configuration"
         range 0 34 if IDF_TARGET_ESP32
         range 0 23 if IDF_TARGET_ESP32C6
         range 0 56 if IDF_TARGET_ESP32P4
+        range 0 28 if IDF_TARGET_ESP32C5
         default 22 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C6 || IDF_TARGET_ESP32P4
         range 0 46 if IDF_TARGET_ESP32S2
         range 0 47 if IDF_TARGET_ESP32S3
         range 0 19 if IDF_TARGET_ESP32C3
         range 0 20 if IDF_TARGET_ESP32C2
         range 0 27 if IDF_TARGET_ESP32H2
-        default 8 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
-        default 8 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32H2
+        default 8 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2
+        default 8 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C5
         help
             GPIO number for UART RX pin. See UART documentation for more information
             about available pin numbers for UART.
@@ -48,14 +49,15 @@ menu "Modbus Example Configuration"
         range 0 34 if IDF_TARGET_ESP32
         range 0 23 if IDF_TARGET_ESP32C6
         range 0 56 if IDF_TARGET_ESP32P4
+        range 0 28 if IDF_TARGET_ESP32C5
         default 23 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C6 || IDF_TARGET_ESP32P4
         range 0 46 if IDF_TARGET_ESP32S2
         range 0 47 if IDF_TARGET_ESP32S3
         range 0 19 if IDF_TARGET_ESP32C3
         range 0 20 if IDF_TARGET_ESP32C2
         range 0 27 if IDF_TARGET_ESP32H2
-        default 9 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
-        default 9 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32H2
+        default 9 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2
+        default 9 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C5
         help
             GPIO number for UART TX pin. See UART documentation for more information
             about available pin numbers for UART.
@@ -65,6 +67,7 @@ menu "Modbus Example Configuration"
         range 0 34 if IDF_TARGET_ESP32
         range 0 23 if IDF_TARGET_ESP32C6
         range 0 56 if IDF_TARGET_ESP32P4
+        range 0 28 if IDF_TARGET_ESP32C5
         default 20 if IDF_TARGET_ESP32P4
         default 18 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C6
         range 0 46 if IDF_TARGET_ESP32S2
@@ -72,8 +75,8 @@ menu "Modbus Example Configuration"
         range 0 19 if IDF_TARGET_ESP32C3
         range 0 20 if IDF_TARGET_ESP32C2
         range 0 27 if IDF_TARGET_ESP32H2
-        default 10 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
-        default 10 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32H2
+        default 10 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2
+        default 10 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C5
         help
             GPIO number for UART RTS pin. This pin is connected to
             ~RE/DE pin of RS485 transceiver to switch direction.
diff --git a/test/serial/mb_serial_slave/README.md b/test/serial/mb_serial_slave/README.md
index 15f1db7..6a7f552 100644
--- a/test/serial/mb_serial_slave/README.md
+++ b/test/serial/mb_serial_slave/README.md
@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- | -------- | -------- |
 
 # Modbus Slave Example
 
@@ -46,8 +46,8 @@ Select Modbus Example Configuration menu item.
 Configure the UART pins used for modbus communication using the command and table below.
 ```
   ------------------------------------------------------------------------------------------------------------------------------
-  |  UART Interface       | #define            | Default pins for      | Default pins for          | External RS485 Driver Pin |
-  |                       |                    | ESP32 (C6)            | ESP32-S2 (S3, C3, C2, H2) |                           |
+  |  UART Interface       | #define            | Default pins for      | Default pins for ESP32-S2 | External RS485 Driver Pin |
+  |                       |                    | ESP32 (C6, P4)        | (S3, C3, C2, C5, H2)      |                           |
   | ----------------------|--------------------|-----------------------|---------------------------|---------------------------|
   | Transmit Data (TxD)   | CONFIG_MB_UART_TXD | GPIO23                | GPIO9                     | DI                        |
   | Receive Data (RxD)    | CONFIG_MB_UART_RXD | GPIO22                | GPIO8                     | RO                        |
diff --git a/test/serial/mb_serial_slave/main/Kconfig.projbuild b/test/serial/mb_serial_slave/main/Kconfig.projbuild
index 2e2bdca..a208e80 100644
--- a/test/serial/mb_serial_slave/main/Kconfig.projbuild
+++ b/test/serial/mb_serial_slave/main/Kconfig.projbuild
@@ -3,12 +3,12 @@ menu "Modbus Example Configuration"
     config MB_UART_PORT_ONE
         bool
         default y
-        depends on (ESP_CONSOLE_UART_NUM !=1) && (SOC_UART_NUM > 1)
+        depends on (ESP_CONSOLE_UART_NUM !=1) && (SOC_UART_HP_NUM > 1)
 
     config MB_UART_PORT_TWO
         bool
         default y
-        depends on (ESP_CONSOLE_UART_NUM !=2) && (SOC_UART_NUM > 2)
+        depends on (ESP_CONSOLE_UART_NUM !=2) && (SOC_UART_HP_NUM > 2)
 
     config MB_UART_PORT_NUM
         int "UART port number"
@@ -31,14 +31,15 @@ menu "Modbus Example Configuration"
         range 0 34 if IDF_TARGET_ESP32
         range 0 23 if IDF_TARGET_ESP32C6
         range 0 56 if IDF_TARGET_ESP32P4
+        range 0 28 if IDF_TARGET_ESP32C5
         default 22 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C6 || IDF_TARGET_ESP32P4
         range 0 46 if IDF_TARGET_ESP32S2
         range 0 47 if IDF_TARGET_ESP32S3
         range 0 19 if IDF_TARGET_ESP32C3
         range 0 20 if IDF_TARGET_ESP32C2
         range 0 27 if IDF_TARGET_ESP32H2
-        default 8 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
-        default 8 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32H2
+        default 8 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2
+        default 8 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C5
         help
             GPIO number for UART RX pin. See UART documentation for more information
             about available pin numbers for UART.
@@ -48,14 +49,15 @@ menu "Modbus Example Configuration"
         range 0 34 if IDF_TARGET_ESP32
         range 0 23 if IDF_TARGET_ESP32C6
         range 0 56 if IDF_TARGET_ESP32P4
+        range 0 28 if IDF_TARGET_ESP32C5
         default 23 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C6 || IDF_TARGET_ESP32P4
         range 0 46 if IDF_TARGET_ESP32S2
         range 0 47 if IDF_TARGET_ESP32S3
         range 0 19 if IDF_TARGET_ESP32C3
         range 0 20 if IDF_TARGET_ESP32C2
         range 0 27 if IDF_TARGET_ESP32H2
-        default 9 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
-        default 9 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32H2
+        default 9 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2
+        default 9 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C5
         help
             GPIO number for UART TX pin. See UART documentation for more information
             about available pin numbers for UART.
@@ -66,14 +68,15 @@ menu "Modbus Example Configuration"
         range 0 23 if IDF_TARGET_ESP32C6
         range 0 56 if IDF_TARGET_ESP32P4
         default 20 if IDF_TARGET_ESP32P4
+        range 0 28 if IDF_TARGET_ESP32C5
         default 18 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C6
         range 0 46 if IDF_TARGET_ESP32S2
         range 0 47 if IDF_TARGET_ESP32S3
         range 0 19 if IDF_TARGET_ESP32C3
         range 0 20 if IDF_TARGET_ESP32C2
         range 0 27 if IDF_TARGET_ESP32H2
-        default 10 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3
-        default 10 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32H2
+        default 10 if IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32H2
+        default 10 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C5
         help
             GPIO number for UART RTS pin. This pin is connected to
             ~RE/DE pin of RS485 transceiver to switch direction.