Ebyte E32-400M20S, User Manual, Page: 12 / 15

Chengdu Ebyte Electronic Technology Co.,Ltd. E32-400M20S User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd. 11
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Please check the stability of power source, the voltage cannot fluctuate too much;
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Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic
susceptibility;
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Please ensure the humidity is within limited range, some parts are sensitive to humidity;
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Please avoid using modules under too high or too low temperature.
6.3 BER(Bit Error Rate) is high
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There are co-channel signal interference nearby, please be away from interference sources or modify
frequency and channel to avoid interference;
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SPI clock waveform is not standard, check whether there is interference on the SPI line, SPI bus wiring should
not be too long;
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Poor power supply may cause messy code. Make sure that the power supply is reliable;
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The extension line and feeder quality are poor or too long, so the bit error rate is high.