> For the complete documentation index, see [llms.txt](https://mwx.twelite.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mwx.twelite.info/latest_en/boards/pal/pal_mag.md).

# \<PAL\_MAG>

Board BEHAVIOR for [OPEN-CLOSE SENSE PAL OPEN-CLOSE SENSE PAL](https://mono-wireless.com/jp/products/twelite-pal/sense/amb-pal.html).

```cpp
void setup() {
  auto&& brd = the_twelite.board.use<PAL_MAG>();
}
```

The sensor of the open/close sensor pal is a magnetic sensor, which is the only input for the interrupt of the two signal lines.

```cpp
const uint8_t PAL_MAG::PIN_SNS_NORTH = 16;
const uint8_t PAL_MAG::PIN_SNS_OUT1 = 16;
const uint8_t PAL_MAG::PIN_SNS_SOUTH = 17;
const uint8_t PAL_MAG::PIN_SNS_OUT2 = 17;
```

`PAL_MAG::PIN_NSNSNS_NORTH` is interrupted when the sensor detects an N-pole and `PAL_MAG::PIN_NSNSNS_SOUTH` is interrupted when the sensor detects an N-pole.

The following settings should be made before sleep

```cpp
pinMode(PAL_MAG::PIN_SNS_OUT1, PIN_MODE::WAKE_FALLING);
pinMode(PAL_MAG::PIN_SNS_OUT2, PIN_MODE::WAKE_FALLING);
```

Check the IO of the waking factor upon waking.

```cpp
uint8_t b_north = 
  the_twelite.is_wokeup_by_dio(PAL_MAG::PIN_SNS_NORTH);
uint8_t b_south = 
  the_twelite.is_wokeup_by_dio(PAL_MAG::PIN_SNS_SOUTH);
```


---

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