The difference between ARM chip and 51 microcontroller

 The traditional 51 MCU is an 8-bit processor, while the ARM chip is a 32-bit processor. Simply put, the 51 MCU is the "Celeron" computer we used in the early stage, and the ARM chip is the "dual-core" computer we use now. Although the two are essentially the same and can both be used as hardware design platforms to achieve technical requirements, the ARM chip is much stronger than the 51 MCU due to its own characteristics (processing speed, processing power and storage capacity, etc.), so it is more comfortable than the 51 MCU in technical implementation. It is precisely this ease that makes it easier to provide customers with upgrades, expansions, renovations and other conveniences in the later stage.

Second, it has high security, ensuring that user data is not lost.

 Take parking lot applications as an example. Currently, simple vehicle image comparison and image capture requirements can no longer meet customers' security requirements. They pay more and more attention to data security (including vehicle entry and exit data, transaction data, communication data, etc.). These high-security data often need to be encrypted and decrypted. Processing these data requires a lot of CPU resources. Traditional 51 single-chip microcomputers are increasingly unable to meet such high processing power requirements. However, ARM chips have strong processing power and rich internal resources, so they can solve such problems well, thereby ensuring higher security.

Third, networking facilitates engineering wiring.

 With the development of society, the trend of network informatization is becoming more and more obvious, resulting in the wider application of TC\IP communication mode. It is very difficult for traditional 8-bit microcontrollers to achieve large-scale network communication due to their own factors. Basically, they use external network converters to convert serial port communication into network communication, but this communication method is often unstable, resulting in frequent "disconnection" and data loss. However, ARM chips have their own network communication ports, so they can achieve network communication as long as they are combined with peripheral devices.

Fourth, it is easy to upgrade and maintain, saving time.

 If customers use equipment with 51 single-chip microcomputer as the core, once the equipment has any fault or defects and needs to be upgraded, they must return the equipment to the original manufacturer for processing. The round trip takes a long time and brings inconvenience to users. The ARM chip supports the LINUX operating system internally. Each program is edited through the LINUX operating system, and the data processing is independent. Therefore, any problem in any link of the program will not affect the normal use of the equipment (except the core program). The most important thing is that the system can be upgraded remotely. Once the equipment has problems or needs to be upgraded, just package the modified or upgraded program and place it on the network, and the user can directly download and install it from the network.

 In short, 51 MCU and ARM represent two different eras of technology background, and they can both create value for customers. The difference is that 51 MCU can only meet some simple user needs due to its own conditions. Once it encounters personalized and complex needs, it seems to be unable to meet the needs compared with ARM technology.