EHMI Description
The EHMI (Extended Human Machine Interface) is located on the wrench controller and comprises of five push buttons and a graphical display.
The display serves as a tool-integrated interface for the operator, showing a subset of the STRwrench Web User Interface.
The EHMI can be used to choose tightening programs, as well as display tightening results.
EHMI with first keyboard version

Position | Name | Description |
---|---|---|
1 | Display | Screen showing a subset of the STRwrench Web User Interface. |
2 | ON / OFF button | Physical button for turning on/off the wrench. |
3 | Up button | Physical button for moving on-screen selection up. |
4 | Select button | Physical button for confirming on-screen selection. |
5 | Barcode / Front LED button | Physical button for triggering the barcode scanner and the front LED light. |
6 | Down button | Physical button for moving on-screen selection down. |
EHMI with new keyboard version

Position | Name | Description |
---|---|---|
1 | Display | Screen showing a subset of the STRwrench Web User Interface. |
2 | Navigation button (up/left) | Physical button for moving on-screen selection up or left. |
3 | Select button | Physical button for confirming on-screen selection. |
4 | Barcode / Front LED button | Physical button for triggering the barcode scanner and the front LED light. |
5 | Navigation button (down/right) | Physical button for moving on-screen selection down or right. |
6 | on/off button / back button | Physical button for turning on/off the wrench and for moving back from on-screen selection. |