Online tools address: http://xnkiot.com/#/crc
1, message validation: we often use to CRC check, and check, calibration, LRC England xor check, calibration results have a hexadecimal data and decimal data, packet length, as shown in the figure below
2, the network protocol test: contains the TCP protocol and UDP protocol, COAP protocol, the MQTT protocol, in the absence of his receiving the server, it is very difficult to test, the terminal (hardware) interaction with the server, so I specially built test platform, as shown in the figure below
3, data transformation: can support floating-point data transformation with HEX, decimal and hexadecimal data conversion, like single precision floating point number, the general tools can only transfer 4 bytes of a group of single precision data, and the conversion tool, can be directly convert more groups of floating point Numbers, you can the floating point directly to the message, copy in test, as shown in the figure below
4, data encryption: WeChat, apple and embedded of encryption methods used by both AES encryption, and encrypted base64 encryption methods, as shown in the figure below
