Learn how to use ESP-NOW to exchange JSON data between ESP32 boards programmed with Arduino IDE.
Send and Recieve JSON data by either One way or Two way communication .
See EXAMPLES codes and TWOWAY_ESPNOW_JSON codes
Bidirectional JSON communication using ESPNOW
ESP-NOW supports the following features:
Encrypted and unencrypted unicast communication
Mixed encrypted and unencrypted peer devices
Up to 250-byte payload can be carried
-Sending callback function that can be set to inform the application layer of transmission success or failure
ESP-NOW technology also has the following limitations:
Limited encrypted peers. 10 encrypted peers at the most are supported in Station mode 6 at the most in SoftAP or SoftAP + Station mode
Multiple unencrypted peers are supported, however, their total number should be less than 20, including encrypted peers
Payload is limited to 250 bytes