Common problems of front-end wireless modules

In the process of using the wireless module, it often encounters various problems. Today NiceRF has compiled a list of the problems that customers often encounter in recent years. I hope to help everyone.

1. Wireless module crashes

1) Check the power supply (whether the load current of the power supply is greater than the emission current in the module specification, power supply type)

2) Whether it affects other equipment. (Whether there are other wireless devices in the working environment)

2. What should I do if the communication distance becomes shorter after the wireless module is used normally for a period of time?

   In this case, the hardware circuit is generally damaged and needs to be sent back for repair.

3. The wireless module cannot emit signals or the communication cannot be achieved

1) Check whether there is a problem with the module hardware wiring

2) See if the SPI can read the register value. If it is, it means the wiring is correct, otherwise the reverse.

3) Check whether the power supply reaches the working voltage (can be determined by reducing the power)

4. Whether to support frequency hopping

Does not support chip automatic frequency hopping, need MCU to set frequency

5. The same procedure can work normally on wireless modules of other manufacturers. Why does our maintenance module not work properly.

The antennas and crystals of the wireless modules of different manufacturers are different, so the procedures may not match.

6. Whether our wireless module can communicate with other manufacturers

The actual frequency is different and cannot communicate with wireless modules of other manufacturers. (The actual frequency should be tested with a spectrum analyzer)

7. Why is the wireless module hot?

The antenna switch is not well controlled.

8. How does the wireless module go to sleep

Use the SPI interface to send commands. For details, please refer to our corresponding module DOMO program.

9. How does the wireless module modify the rate / frequency? Or what is the parameter value corresponding to the rate / frequency of a wireless module?

Each wireless module has a register manual or configuration software, calculates the register value that needs to be modified, and can send commands to the wireless module through the SPI interface

10. How to set the power of the wireless module?

The specifications of each wireless module can be viewed in the corresponding power comparison table.

11. Why can't I receive data when the module sleeps?

When the wireless module is in the sleep state, it is in the wireless off state. In this case, it is unable to receive data

12. How does the wireless module wake up from sleep?

  Send any command through the SPI interface.

13. How to realize wireless remote wakeup by wireless module?

 Except the si4463 module has its own LDC function, all other front-end wireless modules require a single-chip timing control module to switch between sleep and reception.

14. How many bytes can the wireless module send at a time?

 64 bytes at a time for FSK series modules, 255 bytes at a time for LORA series modules, and 32 bytes at a time for 2.4G series

15. How does the wireless module implement big data transmission?

We need to set up through the microcontroller to send packets.

There are about 15 common problems in NiceRF's front-end wireless module. I hope it can help everyone. Frequently asked questions about the wireless data transmission module will also be sorted out to everyone in the near future.

If you have any other questions, please contact us.