Ebyte E78-400M22S User Manual

Contents

Chengdu Ebyte Electronic Technology Co.,Ltd E78-400M22S user manualCopyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd 1Content1.Overview............................................................................................................................................................................. 21.1 Introduction.............................................................................................................................................................. 21.2 Features.....................................................................................................................................................................21.3 Application............................................................................................................................................................... 22. Specification and parameter............................................................................................................................................... 32.1 Limit parameter........................................................................................................................................................ 32.2 Operating parameter................................................................................................................................................. 33. Size and pin definition........................................................................................................................................................44.Development........................................................................................................................................................................56.Basic operation.................................................................................................................................................................... 66.1 Hardware design....................................................................................................................................................... 67.FAQ..................................................................................................................................................................................... 77.1 Communication range is too short............................................................................................................................77.2 Module is easy to damage........................................................................................................................................ 77.3 BER(Bit Error Rate) is high..................................................................................................................................... 78. Production guidance........................................................................................................................................................... 88.1 Reflow soldering temperature.................................................................................................................................. 88.2 Reflow soldering curve.............................................................................................................................................89. Antenna recommendation................................................................................................................................................... 910. Package for batch order.................................................................................................................................................. 10Revision history....................................................................................................................................................................10About us...............................................................................................................................................................................10