A high-performance, high-stability, cross-platform MQTT client, developed based on the socket API, can be used on embedded devices (FreeRTOS / LiteOS / RT-Thread / TencentOS tiny), Linux, Windows, Mac, with a very concise The API interface realizes the quality of service of QOS2 with very few resources, and seamlessly connects the mbedtls encryption library.
fanucwj
commented
9 months ago
Hi Sir： 请问下添加CA证书后连接不上服务器什么原因呢？
mqttclient/network/nettype_tls.c:30 server_certificate_verify()... server_certificate_verify failed returned 0x4004 mqttclient/network/nettype_tls.c:149 nettype_tls_connect()...mbedtls handshake failed returned 0x4004