search

espressif / esp-azure

SDK to connect ESP8266 and ESP32 to Microsoft Azure IoT services
176 stars 92 forks source link

JSON Serialization failed! iothub device twin sample. (CA-290) #133

Open MatthijsDoD opened 1 year ago

MatthijsDoD commented 1 year ago

When I use the function iothub_client_device_twin_init() the method logs "Error: JSON serialization failed!" char* reportedProperties is NULL after defining by serializeToJson(&car). What could be the solution to solve this issue? BTW I am using an ESP8266EX WeMos D1 Mini V3.