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WA_DEV_W218_PTS_002 Rev 005 Page 9 of 109
Product Technical Specification &
Customer Design Guidelines
Recommended characteristics for the buzzer .................................................................................. 66
ON/~OFF Signal ............................................................................................................................... 67
Features ......................................................................................................................................... 67
Pin Description ............................................................................................................................. 67
Application .................................................................................................................................... 68
Power ON ............................................................................................................................................ 68
Power OFF ........................................................................................................................................... 69
WISMO_READY Indication ............................................................................................................. 71
Features ......................................................................................................................................... 71
Pin Description ............................................................................................................................. 71
VCC_2V8 output................................................................................................................................. 72
Features ......................................................................................................................................... 72
Pin Description ............................................................................................................................. 72
Application .................................................................................................................................... 72
BAT-RTC (Backup Battery) ............................................................................................................ 73
Features ......................................................................................................................................... 73
Pin Description ............................................................................................................................. 73
Application .................................................................................................................................... 73
Super Capacitor .................................................................................................................................. 74
Non-Rechargeable Battery................................................................................................................. 74
Rechargeable Battery Cell ................................................................................................................. 75
TX_CTRL Signal for TX Burst Indication ..................................................................................... 76
Features ......................................................................................................................................... 76
Pin Description ............................................................................................................................. 77
Application .................................................................................................................................... 77
Reset .................................................................................................................................................... 78
Feature ........................................................................................................................................... 78
Sequence after an external reset event (~RESET) .......................................................................... 78
Pin Description ............................................................................................................................. 78
Application .................................................................................................................................... 79
RF Interface ........................................................................................................................................ 80
RF Connection .............................................................................................................................. 80
RF Performances .......................................................................................................................... 80
Antenna Specifications ................................................................................................................ 80
4. CONSUMPTION MEASUREMENT PROCEDURE ............................................ 83
Hardware Configuration .................................................................................................................. 83
Equipment ..................................................................................................................................... 83
WISMO218 Development Kit ....................................................................................................... 85
Socket-Up Board Used ................................................................................................................. 86
SIM Cards Used ............................................................................................................................ 86
Software Configurations .................................................................................................................. 87
WISMO218 Configuration ............................................................................................................ 87