diff --git a/.github/workflows/compile-examples.yml b/.github/workflows/compile-examples.yml
index 101802d..763d96c 100644
--- a/.github/workflows/compile-examples.yml
+++ b/.github/workflows/compile-examples.yml
@@ -32,6 +32,12 @@ jobs:
             platforms: |
               - name: rp2040:rp2040
                 source-url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
+          - fqbn: arduino:renesas_portenta:portenta_c33
+            platforms: |
+              - name: arduino:renesas_portenta
+          - fqbn: arduino:renesas_uno:minima
+            platforms: |
+              - name: arduino:renesas_uno
 
     steps:
       - name: Checkout
diff --git a/README.md b/README.md
index e15be52..99486b5 100644
--- a/README.md
+++ b/README.md
@@ -19,3 +19,4 @@ Such a feature is useful for the [Cyphal](https://opencyphal.org/) protocol and
 
 This library works for
 * [arduino-pico](https://github.com/earlephilhower/arduino-pico): [`Raspberry Pi Pico`](https://www.raspberrypi.org/products/raspberry-pi-pico), `Adafruit Feather RP2040`, ... :heavy_check_mark:
+* [ArduinoCore-renesas](https://github.com/arduino/ArduinoCore-renesas): [`Portenta C33`](https://store.arduino.cc/products/portenta-c33), [`Uno R4 WiFi`](https://store.arduino.cc/products/uno-r4-wifi), [`Uno R4 Minima`](https://store.arduino.cc/products/uno-r4-minima), ... :heavy_check_mark:
diff --git a/examples/EEPROM-ReadWrite/EEPROM-ReadWrite.ino b/examples/EEPROM-ReadWrite/EEPROM-ReadWrite.ino
index 175ad18..d10d544 100644
--- a/examples/EEPROM-ReadWrite/EEPROM-ReadWrite.ino
+++ b/examples/EEPROM-ReadWrite/EEPROM-ReadWrite.ino
@@ -25,7 +25,7 @@ static uint8_t const EEPROM_I2C_DEV_ADDR = 0x50;
 
 EEPROM_24LCxx eeprom(EEPROM_24LCxx_Type::LC64,
                      EEPROM_I2C_DEV_ADDR,
-                     [](size_t const dev_addr) { Wire.beginTransmission(dev_addr); },
+                     [](uint8_t const dev_addr) { Wire.beginTransmission(dev_addr); },
                      [](uint8_t const data) { Wire.write(data); },
                      []() { return Wire.endTransmission(); },
                      [](uint8_t const dev_addr, size_t const len) -> size_t { return Wire.requestFrom(dev_addr, len); },
diff --git a/library.properties b/library.properties
index a21dc47..a4f6c64 100644
--- a/library.properties
+++ b/library.properties
@@ -6,5 +6,5 @@ sentence=Arduino library providing a modern C++ wrapper around littlefs.
 paragraph=
 category=Data Storage
 url=https://github.com/107-systems/107-Arduino-24LCxx
-architectures=rp2040
+architectures=rp2040,renesas_portenta,renesas_uno
 includes=107-Arduino-24LCxx.hpp