MT MotionSensor 15x¶

Description¶

The MT MotionSensor 15x is a low power PIR sensor that can we used for a motion/occupancy detection. It also features a light sensor. The battery is of type CR2477 and is user replaceable.

The Bluetooth chipset is nRF52832 from Nordic Semiconductor.

• Firmware Model Number: 0x0018

• DFU Type: Nordic DFU (Secure)

• DFU Advertisement Name__: DFU_PIR:{MAC Address + 1}

Normal Operation Procedure¶

Similar to all Meshtech trackers the MT MotionSensor 15x is delivered in storage mode. This is to conserve power and avoid BLE advertising during transport. This device is normally operated in either connected or unconnected device-mode, depending on use case. While in storage mode, pressing button for 1s will make device discoverable by advertising BLE storage mode advertisements, and device can be switched to either connected or unconnected mode by command via system/gateway. Green LED will light to indicate storage mode advertisements has started. If no command to switch device mode is received while being in this state, device will light red LED and go back to sleep and stop advertisements after 5 minutes. If button is pressed again during the storage mode advertisement green LED will blink 3 times indicating that device is already advertising storage mode, and 5-minute timer is restarted.

Supported Device Modes¶

• Connected

• Storage

• Unconnected

• DFU

Properties¶

Measurements¶

Motion is reported as timestamped data in secure mode and property in legacy mode.

Events¶

Variants¶

Service Mode¶

To enter service mode, hold the button down while inserting the battery. When the red LED turns on, release the button within 5 seconds. The red LED then starts blinking. The device is now in service mode. It will stay in service mode for 2 minutes, before resetting.

In service mode, the device will advertise its model-number and firmware version as the device name. The device will not be connectable.

While in service mode, a factory reset can be triggered by holding the button down for 8 seconds. The red LED will turn off when the factory reset is complete.

This factory reset method can be used when access to the device is prohibited due to lost network key. If you have access to the device, you can just write the 0x8301 - Factory Reset property.

On this device, service mode is not available in storage mode.

DFU mode¶

To enter DFU mode, hold the button down while inserting the battery. When the red LED turns on, hold the button down until the LED turns off. This takes around 5 seconds. The device is now in DFU mode.

This DFU mode entry method can be used when access to the device is prohibited due to lost network key. If you have access to the device, you can just write the 0x8110 - Device Mode property.

History¶

Release Notes¶

Licenses¶