Table Of Contents - Ebyte E22-900M33S User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.
Disclaimer and Copyright Notice ................................................................................................................................................................. 1
1 Overview ......................................................................................................................................................................................................... 2
1.1 Introduction ........................................................................................................................................................................................2
1.2 Features ............................................................................................................................................................................................... 2
1.3 Application scenarios .......................................................................................................................................................................3
2 Parameters ....................................................................................................................................................................................................... 3
2.1 Limit parameters ............................................................................................................................................................................... 3
2.2 Working parameters ......................................................................................................................................................................... 3
2.3 TX Power Curve ............................................................................................................................................................................... 5
3 Mechanical Dimensions and Pin Definitions ......................................................................................................................................... 7
4 Notes for hardware and software ...............................................................................................................................................................8
4.1 Hardware design ............................................................................................................................................................................... 8
4.2 Software writing ................................................................................................................................................................................9
5 MCU connection ......................................................................................................................................................................................... 10
5.1 Recommended connection ........................................................................................................................................................... 10
6 Frequently Asked Questions .....................................................................................................................................................................10
6.1 Transmission distance is not ideal..............................................................................................................................................10
6. 2 modules are easily damaged .......................................................................................................................................................11
6.3 Bit error rate too high ....................................................................................................................................................................11
7 Welding Operation Guidance ................................................................................................................................................................... 11
7.1Reflow soldering temperature ...................................................................................................................................................... 11
7.2 Reflow soldering curve .................................................................................................................................................................12
8 Related Models ............................................................................................................................................................................................ 12
9 Antenna Guide ............................................................................................................................................................................................. 13
9.1 Antenna recommendations ...........................................................................................................................................................13
10 Standard Package......................................................................................................................................................................................14
Revise History ................................................................................................................................................................................................. 14
Copyright © 2012 , Chengdu Ebyte Electronic Technology Co., Ltd.
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E22-900M33S User Manual