The main advantages of the application of WiFi technology in smart homes include: WiFi smart nodes can directly connect to wireless routers, thereby accessing the Internet network; No need for a home gateway, nodes can be expanded freely; Will not damage existing decoration; Smartphones can perform local area network control and remote control.
So the question is, what are the considerations for selecting IoT WiFi modules in various fields such as smart homes?
1. Clarify the application scenarios and data transmission functions that need to be implemented for the WiFi module, determine the size of the data volume, and determine the data throughput of the selected WiFi module.
2. Clearly define the interfaces that the device needs to provide to achieve the required WiFi data transmission function, and select the corresponding type of WiFi module based on the interfaces that the device can provide; In addition, whether it is the master device or the slave device during data transmission; Specific functional requirements; Do you need a WiFi module with a special interface;
3. Several key indicators need to be considered for the selected WiFi module itself
The first indicator: Transmission power of WiFi module
Under different wireless protocols, the transmission power varies.
Second indicator: Transmission rate of WiFi module
The transmission rate of WiFi modules may vary depending on different protocols and the hardware configuration of the modules themselves.
Third indicator: Transmission distance of WiFi module
The transmission distance of WiFi modules goes without saying much, and almost half of WiFi module demanders will consider this factor
Fourth indicator: Power consumption of WiFi modules
Defined as the difference between the input power and output power of devices, devices, etc. The power consumption of WiFi modules is closely related to their transmission power and transmission distance. The higher the transmission power, the farther the transmission distance, and the higher the power consumption.
Fifth indicator: receiving sensitivity of WiFi modules
Receiver sensitivity refers to the minimum signal level that the receiver can detect under the condition of the required signal-to-noise ratio before the receiver demodulator. Receiving sensitivity is a parameter that characterizes the receiving performance of the test object. The better the receiving sensitivity, the more useful signals it receives, and the larger its wireless coverage range.
4. Of course, it is also necessary to consider the cost-effectiveness of WiFi modules, control cost expenditures, choose WiFi modules that are suitable for their functions, and avoid selecting those with excessive functionality.
5. We also need to consider special needs.
For example, if you have a system and interfaces that are suitable for your needs, you can choose a WiFi module that meets your functional requirements.
6. Finally, customize the WiFi module
Some WiFi requirements may be used in special or rare situations, which may not be met by many WiFi modules during the selection process. In this case, it may be necessary to customize WiFi modules!