# MacTalk-DM LoRa Door Sensor

URL: https://www.macnman.com/docs/mactalk/mactalk-dm/mactalk_lora_door_sensor_configuration
Section: User Manual › Mactalk › Mactalk Dm

# LoRa Door Sensor Configuration Guide

## 1. Device Naming

- Open **Name field**
- Enter new name
- Save

![Name – LoRa Door Sensor](/img/mayascreens/name.svg)

**Recommendation:**  
Use location-based naming (e.g., `Warehouse-Door-01`) for clarity.

---

## 4. LoRa Communication Settings

Go to **LoRa Settings** and verify parameters.

All settings must match:
Sensor ↔ Gateway

### Required Parameters

- **Class** → Must match  
- **Frequency (IN865)** → Standard band in India  
- **Spreading Factor (SF)**  
  - Lower SF → Faster transmission, shorter range  
  - Higher SF → Slower transmission, longer range  

- **Channel** → Must be identical  
- **Slave ID** → Unique per device  
- **Encryption Key** → Must match for secure communication  

**Purpose:**  
Ensures stable and secure wireless communication.

#### How to change LoRa Class? :

![lorawan classes](/img/lorawan/class.svg)

**LoRa Class**  
Select the appropriate **LoRa Class** based on your device’s power source and application needs:

- **Class A**  
  Recommended for **battery-powered** devices. It offers the **lowest power consumption** and is suitable for sensors that transmit data occasionally.
  
- **Class C**  
  Designed for **mains-powered devices**.
  It keeps the receiver **always on**, allowing near-instant downlink communication from the server.  

Choosing the correct class helps optimize battery life and network responsiveness based on your deployment.

**Controller are available in the Class C mode only:**

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## LoRa Frequency

![lorawan frequency](/img/lorawan/freq.svg)

Select the appropriate LoRa frequency band **based on your deployment region** and **local regulatory** standards.

- **Example**  
  `IN865(India)` , `IN868(Europe)` ,`US915(North America)`

--- 

## LoRa SF

#### How to LoRa Spreading Factors ? :

Inside LoRa settings, navigate to SF (Spreading Factor) and toggle up and down as per requirement.

![lorawan frequency](/img/mayascreens/lora-spreading-factor-mactalk.svg)

--- 

## LoRa Channels

#### How to setup LoRa channels ? :

Inside LoRa settings, navigate to channels and type in channel number as per requirement.

![lorawan frequency](/img/mayascreens/lora-channels-input.svg)

--- 

## Slave ID

#### How to setup device slave ID ? :

Inside LoRa settings, navigate to Slave ID and type in Slave ID number as per requirement.

![lorawan frequency](/img/mayascreens/mactalk-slave-id-dm.svg)

---

## Encryption Key

#### How to setup device Encryption Key ? :

Inside LoRa settings, navigate to Encryption Key and type in Encryption Key number as per requirement.

![lorawan frequency](/img/mayascreens/lora-en-key-mactalk-sample.svg)

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## 3. Network Capacity

- Up to **20 devices per gateway**
- Recommended at **5-minute uplink interval**

**Note:**  
Higher transmission frequency can reduce supported device count.

---

## 4. Viewing Sensor Data

Go to: **Device Data**

You can monitor:
- **Door Status**
- **Door Cycle Count**
- **Battery Status**

### Status Values
- `0` → Door Closed  
- `1` → Door Open  

![Door Sensor Data MacTalk](/img/mayascreens/door-sensor-data-mactalk.svg)

**Purpose:**  
Provides real-time monitoring of door activity.

---

## 5. Modbus Data Reading (Advanced)

To read data via Modbus:

- Connect gateway to PC using **RS485 converter**
- Use the following parameters:

| Parameter       | Value |
|----------------|------|
| Slave ID       | 6    |
| Function Code  | 4    |
| Address        | 0    |

![Register Info For Door Sensor MacTalk](/img/mayascreens/register-info-for-door-sensor-mactalk.png)

**Purpose:**  
Allows integration with external systems or software for data logging.

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## Related Resources

- Datasheets: [LoRaWAN product datasheets](/product/lorawan)
- Start of this manual: [MacTalk-DM LoRa Gateway Node](/mactalk/mactalk-dm/mactalk_dm_document)
- Help: [Contact Macnman support](/help/help)