Some data transmission in Bluetooth 5.2 can't be transmitted because of its low rate, but Bluetooth 5.3 solves this problem, so that signals with low power consumption and low rate can also be used. This mainly appears in some medical equipment such as blood glucose meters, and the appearance of 5.3 greatly optimizes medical work. Bluetooth 5.2 needs to broadcast to connected devices regularly, while Bluetooth 5.3 will improve the stability of broadcasting, so as to do more things with the broadcast time.
For some open signals, such as access control, commercial lighting and other equipment. Bluetooth 5.3 improved their encryption key length control options and security. At the same time, because administrator control is simpler, the connection can be faster.
Matters needing attention in selecting Bluetooth function
Generally speaking, the process of the chip reflects the basic level and price level of the chip. At present, the mainstream technology of wireless SOC products and MCU products is still 55nm. The previous generation chips were basically 1 10nm process, while the new generation products were based on 55nm process, with high power consumption. On the other hand, with higher technology, the overall area of the chip will be smaller and the cost of the chip will be more advantageous.
At present, the wireless chip Flash is generally the core of SiPFlash. Here we need to confirm whether SiP Flash is mature, the type of SiP Flash interface and the speed supported by Flash. If it is a non-SiP Flash, it is best to know whose iP Flash is and which chips are used, so as to avoid the helpless situation that the program runs everywhere, the content of Flash changes or Flash cannot run stably.