As an important link of IoT hardware, wireless module is irreplaceable. Therefore, when choosing wireless modules, each parameter should be carefully considered according to the actual situation of the project, because there is a iot wifi module parameter that leads to project delay or failure has also happened before.
Many users in the purchase of wireless modules think that the higher the module parameters, the better the module performance. This is not correct, the data of each parameter is not equal to the module performance, according to the actual situation of the project to choose the parameters of the module, take the wireless module transmission rate, the higher the transmission rate, the better the performance?
First, we first understand what is the wireless module transmission rate, transmission rate refers to the speed of the wireless module transmission data, when the greater the transmission rate, the more information can be transmitted per unit of time. After reading this, does it feel that the higher the transmission rate, the better? Conversely, the higher the transmission rate, the more likely the signal will be attenuated, resulting in a shorter transmission distance.
Therefore, when the higher the transmission rate of the wireless module, will the performance be worse? This statement is also wrong, if we are in the case of short distance, high rate modules will certainly be better, if it is a distance requirement for the module, then the choice of low-rate modules is undoubtedly more appropriate.
For how to choose the transmission rate of high or low, only according to our actual situation to choose, other aspects of the parameters are also the same, choose the most suitable for their own, rather than the higher parameters the better.
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