Add submission # 7420

#7420

Author: ArduinoBot

registry.txt

@@ -8733,3 +8733,4 @@ https://github.com/stm32duino/X-NUCLEO-NFC12A1.git|Contributed|STM32duino X-NUCL
 https://github.com/TUDA-MUST/Resense-HEX.git|Contributed|Resense HEX
 https://github.com/dudmoryo-cyber/TTP229_keypad.git|Contributed|TTP229 Keypad Driver
 https://github.com/LEKPCSTEAM/ESP32-OTA-Client.git|Contributed|ESP32-OTA-Client
+https://github.com/cpei2025/ESPNowAdhoc.git|Contributed|ESPNowAdhoc