Comparison of 433M and 2.4G frequency used by RF LED controllers

Comparison of 433M and 2.4G frequency

The frequency range 433.05~434.79MHz and 2.4~2.5GHz belong to the domestic license-free ISM (industrial, scientific and medical) open frequency . The use of these frequency  does not require an application for authorization from the local radio management, so these two  have been obtained widely used.

Customers have many questions about mainstream products in these two frequency . We have briefly summarized and explained the issues that customers are more concerned about.

Application selection

433MHz high receiving sensitivity and relatively strong diffraction performance test filter, for example, in a master-slave communication system, 433MHz products can actually be used. In this way, the master-slave topology has the advantages of simple network structure, easy layout, and short power-on time. This is actually the prototype of the early smart home.  Wireless modules, including wireless switch control, wireless data transceiver modules, etc., are used in 433MHz and 470MHz. Now it has been widely used in LED control lighting, smart meter reading industry, robotics industry, and workshop scheduling industry.

The application point of 2.4GHz is a networking protocol developed based on its high-speed transmission rate. It can be used for commercial or domestic wireless lighting, hotel wireless door locks, wireless smoke detectors and other equipment. The hotel security monitoring room and the front desk can monitor the security status of the hotel building in real time.

All in all, if the network topology and functions are simple, with one master and multiple slaves, but the network environment is complex and the cost is limited, it is recommended to give priority to 433MHz products; if the network topology is more complex, with various functions, strong network robustness, and low power consumption requirements , Development is simple, 2.4GHz is also a good choice.