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Update README.md
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timeconfusing authored Mar 23, 2019
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Expand Up @@ -15,3 +15,6 @@ The button matrix allow for fast definition of multiple rows and columns of butt
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The escape section prevents a press of the button being interpreted as a multipress of the button. The matrix is created by lv_btnm_set_map. The last character in the string for the button_map is what the callback function receives when pressed. The callback function is defined by lv_btnm_set_action.

The Button Matrix looks like this when run in the LVGL PC Simulator.
![Image of BTNM](https://github.com/timeconfusing/Images)

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