Chapter 3. application solution
3.9.12 Do ESP-NOW applications support sending packets over each Wi-Fi channel?
Yes, please refer to ESP-NOW documentation.
3.9.13 Are there any special procedures required if I intend to use ESP-NOW for com-
mercial purposes? Could you provide technical documentation on ESP-NOW?
To evaluate the quality of wireless communication, I would like to know relevant
information about parameters including CSMA/CA, modulation method, and bit
rate.
• The application for ESP-NOW does not require any special procedures.
• For technical documentation, please refer to ESP-NOW User Guide. You can use examples in ESP-NOW
SDK for testing.
• The default bit rate of ESP-NOW is 1 Mbps.
3.9.14 I tested the application esp-idf/examples/wi/espnow using ESP32. Does it only
support connecting to 7 encrypted devices at the maximum?
• In the esp-now application, ESP32 supports connecting to no more than 17 encrypted devices, and the default
value is 7. For more details, please refer to “Add Paired Devices”.
• If you want to change the number of paired encryption devices, set CON-
FIG_ESP_WIFI_ESPNOW_MAX_ENCRYPT_NUM in WiFi component conguration menu.
3.10 ESP RainMaker cloud service
3.11 ios application
3.12 Third party cloud service
3.12.1 Are there any examples for OTA upgrading?
• For ESP8266, please refer to ESP8266 OTA.
• For ESP32 series, please refer to ESP32 series OTA.
Espressif Systems 37
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