User Manual

STN11xx PowerSave
Table of Contents
1.0 PowerSave Functionality ..............................................................................................................................3
1.1 Control Modes .............................................................................................................................................3
1.1.1 Native PowerSave Mode.........................................................................................................................3
1.1.2 ELM327 Low Power Mode......................................................................................................................3
1.2 Sleep Triggers .............................................................................................................................................3
1.2.1 STSLEEP and ATLP commands ............................................................................................................3
1.2.2 UART Inactivity........................................................................................................................................4
1.2.3 External SLEEP Input .............................................................................................................................4
1.2.4 Voltage Level Sleep ................................................................................................................................4
1.3 Wakeup Triggers .........................................................................................................................................4
1.3.1 UART Rx Pulse Wakeup.........................................................................................................................5
1.3.2 External SLEEP Input Wakeup ...............................................................................................................5
1.3.3 Voltage Level Wakeup ............................................................................................................................5
1.3.4 Voltage Change Wakeup ........................................................................................................................5
1.4 Voltage Trigger Considerations...................................................................................................................5
1.5 External Power Control Output....................................................................................................................6
1.6 Device Specific Details ................................................................................................................................6
1.6.1 OBDLink Hardware Rev 1.x ....................................................................................................................6
1.6.2 OBDLink Hardware Rev 2.0 – 2.4...........................................................................................................6
1.6.3 OBDLink Hardware Rev 2.5 and Above .................................................................................................7
1.6.4 OBDLink S...............................................................................................................................................7
1.6.5 microOBD 200.........................................................................................................................................7
1.6.6 STN1110 .................................................................................................................................................7
1.7 Trigger Summary.........................................................................................................................................8
2.0 PowerSave ST Commands............................................................................................................................9
2.1 Command Summary....................................................................................................................................9
2.2 Command Descriptions ...............................................................................................................................9
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