The difference between the 885 series ASK module and the 882 series ASK module

By sdga:NiceRF Wireless Technology Co., Ltd

ASK885 series wireless module is our latest ASK module. There may be someone who are not familiar with this module. In order to let everyone know better and faster understanding  885 series ASK module, we will make a comparison about 885 series and 882 series ASK modules (because the 887 series only has receiving modules, it is not listed), so that everyone can understand the modules of the 885 series more intuitively.


Comparison of parameters of the transmitting wireless module:

 STX882 wireless moduleSTX885  Wireless Module
Maximum transmit power20.5dBm15dBm
Modulation  rate0.1~9.6Kbps0.1~9.6Kbps
working  frequency433/315MHz433/315MHz
Emission  current34mA25mA
Sleep current≤0.01uA1uA

From the comparison of parameters, the maximum transmit power of the STX882 is 5.5dBm larger than that of the STX885, so the STX882 is superior to the STX885 in terms of power, and the other parameters are basically the same.


Comparison of parameters of receiving wireless module:

 SRX882  wireless moduleSRX885  wireless module
Receiving  current2.7mA4.5mA
Receiving  bandwidth200Khz350Khz

From the comparison of the parameters of the receiving module, the SRX882 will bebetter in terms of low power consumption, but in terms of receiving sensitivity and receiving bandwidth parameters, the SRX885 is definitely better.


Functional comparison

1. Modulation

The modulation mode of the 882 series wireless module is ASK modulation mode, while the transmission mode of the 885 series transmission module only has OOK modulation mode, and the receiver has both ASK and OOK modulation modes.According to the test of our engineers, the transmission module of the 882 series can communicate with the receiving module of the 885 series (in ASK modulation mode), but the receiving module of the 882 series cannot communicate with the transmitting module of the 885 (different modulation mode).


2. Features

The 882 series of wireless modules only have the simplest transmit and receive functions of the ASK module, while the 885 series of wireless modules have different and complex functions, such as the transmit module and the receive module. For example, the 885 series receive wireless modules have five types.Output mode is optional (toggle , self-lock, jog, interlock, serial port);automatic recognition and learning 2262, 1527, 2240, etc.

Commonly used coding methods, as well as four-way switch control functions like the wireless module switch module, the 885 series modules are far more powerful than the 882 series modules.


3. Receive module application

The receiving module of the 882 series can only communicate with the transmitting module of the 822 series, but the receiving module of the 885 series can be paired with the common remote controllers on the market, and the application market is extremely broad. The receiving module application is as follows:

ASK module


4. Essential difference

The 882 series wireless module is a common ASK module on the market, and has the most basic wireless transmission function,but it cannot complete communication independently, and it is necessary to usea MCU to communicate. It is a product that needs secondary development andproduction; The 885 series wireless module is a kind of coded ASK wireless module, which can complete the information coding work independently, realize the communication function, and also can be used for secondary development. Ingeneral, similar to the difference between the wireless front-end wireless module and the digital wireless module, the 882 series can't complete communication when the bare module is used, and the 885 series can complete communication independently when it is bare.


5. Distance

The transmission distance of the 882 series wireless module is 400 meters, and the transmission distance of the 885 series wireless module is 500 meters. In terms of distance, the advantages are not much different.


Today's comparison between the 882 series and the 885 series of wireless modules is over here. If you don't understand anything, you can contact us. Finally, I hope this article will help you better understand the ASK module of the 885 series.

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