Logpro K114 10mW 915MHz FHSS wireless transceiver User Manual Manual
Logpro Limited 10mW 915MHz FHSS wireless transceiver Manual
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Wireless Module K114
FCC ID: 2AAN2K114
Module Specifications
The 2AAN2K114 is a 10mW, 902-928 MHz frequency hopping wireless transceiver with on board sensors.
The antenna is a meandering monopole tooled as a track on the PCB.
Physical Specifications
Parameter Value Remarks
Circuit board dimensions 73.5mm (x) by 40.5mm(y) See diagram below
Instruction for installation
Any enclosure into which this module is installed must display a Label clearly visible to the user
without magnification stating “Contains FCC ID: 2AAN2K114”
Logpro
Energy and Communications Services
Radio Frequency Specifications
Parameter Value Remarks
Centre frequency 915MHz USA ISM band
Modulation type FHSS Frequency Hopping Spread Spectrum
Number of channels 53 Must be greater than 50
Minimum Frequency 903MHz Cannot be below 902MHz
Maximum Frequency 927MHz Cannot be above 928MHz
Maximum Channel dwell time 120 milliseconds Cannot exceed 400mS
Maximum Output Power 9dBm Cannot exceed 27dBm
Antenna Type PCB trace Fixed
Electrical Specifications
Parameter Value Remarks
Minimum Input voltage 3.0 VoltsDC
Maximum Input voltage 6.0 VoltsDC
On board voltage regulator Yes
Maximum current draw 35 milliAmps Peaks during transmit
Sleep current draw 5 microAmps
Serial Communications 19200 Baud TTL Fixed
General Purpose Input Output
Pin Count
8
Analogue to Digital inputs 4
Analogue Sensor Data
Parameter Value Remarks
ADC0
Sensor characteristics
R@25degC = 10K B=3997 Thermistor
DC drive voltage
1.2 VDC
Voltage range (defined by ADC)
0 – 1.2 VDC
Resolution
0.25 degC
Accuracy
+/-0.5 degC
Range
-30 to +40 degC
ADC1
Sensor characteristics
R@25degC = 10K B=3997 Signal from
DC drive voltage
1.2 VDC Thermistor
Voltage range (defined by ADC)
0 – 1.2 VDC on ADC0
Resolution
0.1 degC amplified to
Accuracy
+/-0.3 degC expand
Range
-30 to +10 degC resolution
Analogue Sensor Data (continued)
Parameter Value Remarks
ADC2
Sensor characteristics
R@25degC = 10K B=3997 Signal from
DC drive voltage
1.2 VDC Thermistor
Voltage range (defined by ADC)
0 – 1.2 VDC on ADC0
Resolution
0.1 degC amplified to
Accuracy
+/-0.3 degC expand
Range
0 to +40 degC resolution
ADC3
Sensor characteristics
Resistive divider Voltage monitor
DC drive voltage
0 – 6 VDC
Voltage range (after resistive
divider)
0 – 1.2 VDC
Resolution
0.02 V
Accuracy
+/-0.1 V
Digital Sensor Data
Parameter Value Remarks
D Sensor 1 Reed Switch
Sensor characteristics
On/Off switch Normally open Reboot device
Voltage range
0 – 6 VDC
D Sensor 2
OSRAM SFH3710
Light
Sensor characteristics
Optical photodiode Input device
Spectral Range
350nm to 950nm
D Sensor 3 SENSOLUTE MVS0608.02 Vibration
Sensor characteristics
Rolling Ball Input device
Sensitivity
50mg
D Sensor 4 ST LIS331DLH Accelerometer
Sensor characteristics
3 axis MEMs Input device
Sensitivity
0.9mg
D Sensor 5 SENSIRION SHT25 Humidity
Sensor characteristics
0 – 100% RH Input device
Accuracy
1.8%
Sensitivity
+/- 1%
Other Device Data
Parameter Value Remarks
Device 1 ST M95512-RMN6TP Memory
Size
512KB EEPROM
Connection
SPI
Device 2 ST M95512-RMN6TP Memory
Size
512KB EEPROM
Connection
SPI
Device 3 MicroChip MCP7941X Real Time Clock
Connection
I2C
Device 4 Everbouquet MCG1603CW-
SGR
LCD Display
Connection
I2C
Device 5 HSMH-C190 LED
Connection
GPIO 2
Colour
RED
Device 6 HSMG-C170 LED
Connection
GPIO 3
Colour
GREEN
Environmental Specifications
Parameter Value Remarks
Operating Temperature Range -35 to + 50 deg C
Operating Humidity Range 0 to 95% RH (non
condensing)
Storage Temperature range -35 to + 60 degC
Storage Humidity Range 0 to 95% RH (non-
condensing)
IP value Not Applicable IP value provided by
enclosure
Parts & Materials
Test Parameter Standard no/name Remarks
Chemicals used in
manufacture
RoHS Only Lead-free solder used in
PCBA
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause undesired
operation.
FCC Caution: Any changes or modifications not expressly approved by Logpro Ltd. could void the user's
authority to operate this equipment.
This transmitter module is authorized to be used in other devices only by OEM. Further transmitter testing
will not be required. However, the OEM integrator is still responsible for testing their end-product for any
additional compliance requirements required with this module installed (for example, digital device
emissions, PC peripheral requirements, etc.).
The OEM integrator has to be aware not to provide information to the end user regarding how to install or
remove this RF module in the user manual of the end product.
Note that this product is NOT a Software Defined Radio in the sense that it is not possible in any way to
make any changes to the RF transmission characteristics via software that would cause non compliant
behavior.
The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm
from all persons and must not be co-located or operating in conjunction with any other antenna or
transmitter except in accordance with FCC multi-transmitter product procedures.