WIRELESS, SENSING and TIMING PRODUCTS
LoRaMote
USER GUIDE
Revision 2.0
– July 2014
Page 8 of 23
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4.3 Hardware Details
As a handheld platform, the LoRaMote is mainly targeted to be battery powered and is thus equipped with
a dedicated 9V standard alkaline battery holder. To simplify the development of software on the
LoRaMote, the platform can also be powered directly from a USB port, thus removing the need for a
battery while developing software.
The LoRaMote is targeted to a wide range of applications and is therefore fitted with a variety of sensors
which gives flexibility of use, and allows showcasing the IOT capabilities of the LoRaMote. It is important
to notice that a header fitted with a wide variety of communication protocols is available on the board.
This brings to the LoRaMote the flexibility of having an add-on sensor board carrying another complete
set of devices.
4.3.1 3-Axis Accelerometer sensor MMA8451Q
Made by Freescale, the MMA8451Q is a low-power, three-axis, capacitive accelerometer with 14 bits of
resolution. This accelerometer is packed with embedded functions with flexible user programmable
options, configurable to two interrupt pins. The device can be configured to generate inertial wakeup
interrupt signals from any combination of the configurable embedded functions allowing the MMA8451Q
to monitor events and remain in a low-power mode during periods of inactivity. The MMA841Q is
accessible through the I2C bus at the address 0x1C. Please, consult Freescale website for more detailed
information on the device.
4.3.2 3-Axis Magnetometer sensor MAG3110
The MAG3110 is a small, low-power digital 3-D magnetic sensor with a wide dynamic range to allow
operation in PCBs with high extraneous magnetic fields. The MAG3110 magnetometer measures the
three components of the local magnetic field which will be the sum of the geomagnetic field and the
magnetic field created by components on the circuit board. The MAC3110 can be used in conjunction
with a 3-axis accelerometer; orientation-independent accurate compass heading information can be
achieved. The MAG3110 is accessible through the I2C bus at the address 0x0E. Please, consult
Freescale website for more detailed information on the device.
4.3.3 Altimeter, Thermometer and Pressure sensor MPL3115A2
Freescale's MPL3115A2 provides highly precise pressure, temperature and altitude data with variable
sampling rate capability. It has low-power consumption and requires zero data processing. The Xtrinsic
MPL3115A2 pressure sensor smart features include digital output, two interrupts for auto-wake,
minimum/maximum threshold detection and autonomous data acquisition. MCU usage is limited since the
MPL3115A2 pressure sensor can process sensor data locally, reducing communications required with the
host processor. The MPL3115A2 is accessible through the I2C bus at the address 0x60. Please, consult
Freescale website for more detailed information on the device.
