# Light on/off WiFi SuperLocal

Light on/off WiFi SuperLocal is similar to the original mode as it detects light - a message is sent every time a predefined threshold (% of light detected) is crossed either way. Can be set up to detect a very low light percentage threshold - darkness and extreme darkness (useful for monitoring package opening at night). All mode-specific events are sent with up to 5 MAC pointers and their RSSI for very precise localization.

### Light on/off WiFi SuperLocal

**Hex value:** 0x56

**Use cases:** Monitoring electricity usage, buildings, and rooms, detecting opening of packages, freezers, safeboxes, etc, and more

**Devices that support this mode:** SimplePack Plus

**Required sensors:** Light sensor, WiFi module

**Mode-specific deltas:**

**Deltas** are mode-specific register values different from *register default values*.

| **Register (hex)** | **Default (hex)** | **Delta (hex)** | **Delta information** |
| ------------------ | ----------------- | --------------- | --------------------- |
| 0x04               | 0x41              | 0x06            | Sleep time decreased  |
| 0x36               | 0x00              | 0x05            | Light detection on    |

**Mode-specific events (uplink messages):**

For more information on what uplink messages (***mode-independent events***) and additional data from various sensors in the device (***appended payload***) can be sent regardless of mode and how to fine-tune message behavior (***alerts***), see *Mode-independent information and events.*

<table data-header-hidden><thead><tr><th width="182"></th><th></th><th></th><th></th></tr></thead><tbody><tr><td><strong>Hex</strong></td><td><strong>Event name</strong></td><td><strong>Alert</strong></td><td><strong>Event information</strong></td></tr><tr><td>0x60</td><td>Light detected WiFi Precise</td><td>1</td><td>Light % over predefined threshold,<br>sent with 5 MAC pointers and RSSI</td></tr><tr><td>0x61</td><td>Darkness detected WiFi Precise</td><td>2</td><td>Light % under predefined threshold,<br>sent with 5 MAC pointers and RSSI</td></tr><tr><td>0xFC</td><td>MAC storage readout</td><td>No</td><td>One pointer and its assigned MAC address sent</td></tr></tbody></table>

**Registers relevant for this mode:**

| **Hex** | **Register name**               | **Default value (hex)**                                                                                                                                                                         |
| ------- | ------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 0x36    | Light sensor measurement period | 0 seconds (0x00), **delta: 5 seconds (0x05)**                                                                                                                                                   |
| 0x43    | Light sensitivity hysteresis    | 5% of light (0x05)                                                                                                                                                                              |
| 0x44    | Light sensitivity threshold     | 30% of light (0x1A)                                                                                                                                                                             |
| 0x4C    | Light sensor detection delay    | 0 seconds (0x00)                                                                                                                                                                                |
| 0xFC    | MAC storage eraser              | **No default value** - After this register hex, you can send up to 7 MAC pointers (0x01-0x80) to the device and then the respective MAC addresses will be deleted from the internal MAC storage |
| 0xFD    | MAC storage reader              | **No default value** - After this register hex, you can send up to 7 MAC pointers (0x01-0x80) to the device, the respective MAC addresses will be uplinked as the same number of *0xFC events*  |

**Similar modes:**

| **Hex** | **Mode name**           | **Description**                            |
| ------- | ----------------------- | ------------------------------------------ |
| 0x0D    | Light on/off            | Original version of Light on/off, no WiFi  |
| 0x1A    | Light on/off WiFi       | Basic WiFi-enabled version of Light on/off |
| 0x3B    | Light on/off WiFi Atlas | WiFi Atlas version of Light on/off         |

**Switching to mode, arming, and disarming information:**

Follow the *Basic Operations With SimpleHw Devices guide*, where you can also find information about LED behavior, relevant Sigfox messages, and more.

Here’s what’s important for **Light on/off WiFi Precise** messages:

* To set this mode, the downlink needs to include this mode register setting: **0156**
* The uplink messages need to begin with the mode hex as the first byte: **56**
* When arming the device, you should see this message: **5610**
* When the device is armed, it should send you these two bytes: **5611**
* If you disarm the device via the long press, you should receive this message: **5614**


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