Chengdu Ebyte Electronic Technology Co., Ltd.
E180-Z5812SP Product Manual
Copyright ©2012–2019,
Chengdu Ebyte Electronic Technology Co., Ltd.
33
6.6.28 Parameter Description of Firmware Version Command
Read instruction format:
command format
command example
command
:
FE 03 34 FF
return
:
FB 34 FirmwareVersion
send
:
FE 03 34 FF
return
:
FB 34 82 58 00
Firmware_version: 82 58 00
82 58 Indicates Telink's 8258 chip
00 Indicates the firmware version number
Chapter Seven Frequently Asked Questions
7.1 The transmission distance is not ideal
When there is a straight-line communication obstacle, the communication distance will be attenuated accordingly;
Temperature, humidity, and co-channel interference will increase the communication packet loss rate;
he ground absorbs and reflects radio waves, and the test effect is poor when it is close to the ground;
Seawater has a strong ability to absorb radio waves, so the seaside test effect is poor;
There are metal objects near the antenna, or placed in a metal case, the signal attenuation will be very serious;
The power register is set incorrectly, and the air speed is set too high (the higher the air speed, the closer the distance);
The low voltage of the power supply at room temperature is lower than the recommended value, and the lower the voltage, the
lower the output power;
The matching degree between the antenna and the module is poor or the quality of the antenna itself is problematic.
7.2 The module is easily damaged
Please check the power supply to ensure that it is within the recommended power supply voltage. If it exceeds the maximum
value, it will cause permanent damage to the module;
Please check the stability of the power supply, the voltage cannot fluctuate greatly and frequently;
Please ensure anti-static operation during installation and use, and high-frequency devices are electrostatically sensitive;
Please ensure that the humidity during installation and use should not be too high, some components are humidity sensitive
devices;
If there is no special requirement, it is not recommended to use it at too high or too low temperature.
7.3 The bit error rate is too high
There is co-channel signal interference nearby, stay away from the source of interference or modify the frequency and channel to
avoid interference;
Unsatisfactory power supply may also cause garbled characters, so ensure the reliability of the power supply;