diff --git a/README.md b/README.md
index 17c48207..08c28fa7 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,9 @@ SX127x, RFM9x, SX126x, RF69, SX1231, CC1101, nRF24L01, RFM2x, Si443x and SX128x
   * [__STM32__ (official core)](https://github.com/stm32duino/Arduino_Core_STM32) - STM32 Nucleo, Discovery, Maple, BluePill, BlackPill etc.
   * [__STM32__ (unofficial core)](https://github.com/rogerclarkmelbourne/Arduino_STM32) - STM32F1 and STM32F4-based boards
 
+* __MCUdude__
+  * [__MegaCoreX__](https://github.com/MCUdude/MegaCoreX) - megaAVR-0 series (ATmega4809, ATmega3209 etc.)
+
 The list above is by no means exhaustive. Most of RadioLib code is independent of the used platform, so as long as your board is running some Arduino-compatible core, RadioLib should work. Compilation of all examples is tested for all platforms prior to releasing new version.
 
 ### In development: