TEKTELIC communications Vivid+ Multi-Purpose LoRaWAN IoT Sensor User Guide

TEKTELIC Communications Inc.
7657 loth Street NE Calgary, Alberta
Canada, T2E 8X2
BREEZE/BREEZE-V/VIVID+
User Guide 

T0007838 (Breeze Module)
Product Code:| T0007848 (Vivid+ Module)
T0007806 (Breeze-V Module)
Issue Date:| March 24, 2022

© 2022 TEKTELIC Communications Inc., all rights reserved.
All products, names, and services are trademarks and registered trademarks of their respective companies.

Document Revision

T0007525_UG_ver1.0.
1.1| March 22, 2022| Release| Shania Stewart| Removed “Confidential” from footers.
1.2| March 24, 20| Release| Shania Stewart| Updated the product marketing name throughout the document.

List of Tables

Table 1-1: Transducers in Breeze/Breeze-V/Vivid+ …………………………………………………………….. 7
Table 1-2: Breeze/Breeze-V/Vivid+ Specifications ………………………………………………………………. 9
Table 4-1: Breeze/Breeze-V/Vivid+ Default Reporting Behavior …………………………………………. 17

List of Figures

Figure 1-1: Breeze/Breeze-V/Vivid+ Enclosures …………………………………………………………………. 8
Figure 1-2: Breeze/Breeze-V/Vivid+ External Interfaces ……………………………………………………… 9
Figure 1-3: The typical and maximal tolerance for %RH at 25°C …………………………………………. 11
Figure 1-4: The typical and maximal tolerance for the temperature transducer at 25°C ……….. 11
Figure 4-1: Breeze/Breeze-V/Vivid+ With Marked LED Positions ………………………………………… 18

List of Acronyms

ADR ……………………….Adaptive Data Rate
ALOHA ……………………Additive Links Online Hawaii Area
BLE …………………………Bluetooth Low Energy
CO2 ………………………..Carbon Dioxide
CSS …………………………Chirp Spread Spectrum
DTS ………………………..Digital Transmission System
EU ………………………….European
FCC…………………………Federal Communications Commission
FH ………………………….Frequency-Hopping
FHSS ………………………Frequency-Hopping Spread Spectrum
I2C or I2C…………………Inter-Integrated Circuit
IoT …………………………Internet of Things
IP …………………………..Ingress Protection
ISM ………………………..Industrial, Scientific, and Medical
Lora ………………………Long-Range
LoRaWAN ……………….Long-Range Wide-Area Network
LPWAN …………………..Low-Power Wide Area Network
LTC …………………………Lithium Thionyl Chloride
MAC……………………….Media Access Control
MCU ………………………Microcontroller Unit
NA …………………………North American
NS ………………………….Network Server
OD …………………………Operational Description
PCBA ………………………Printed Control Board Assembly
PRNG ……………………..Pseudo-Random Number Generator
RF ………………………….Radio Frequency
RSSI ……………………….Received Signal Strength Indicator
Rx ………………………….Receive
SPI …………………………Serial Peripheral Interface
Tx …………………………..Transmit

Product Description

 Overview

The Breeze/Breeze-V/Vivid+ is a multi-purpose LoRaWAN IoT sensor packed into a very small form factor. The Breeze, Breeze-V, and Vivid+ are all variants in the same sensor family, each with different sensing capabilities. The Sensor is ideal for monitoring and reporting CO2 concentration, human motion, temperature, humidity, light, and barometric air pressure in an indoor environment.
The Sensor is also designed to communicate with a 2.9’’ wireless e-Ink BLE Display that allows room occupants to locally view the latest measurements from select transducers taken in real-time. The Display will show the most recent CO2, temperature, and humidity measurements taken from the Sensor, as well as the remaining battery capacity of the Sensor and Display. The Sensor is designed to only communicate with the BLE Display that is shipped with the Sensor.
All three functional variants are LoRaWAN-capable end-devices that are capable of supporting Tx/Rx in the following frequency bands as specified in the LoRaWAN Regional Parameters v1.1 [1]: AS923, AU915, EU868, IN865, KR920, RU864, and US915. The variants that support BLE Tx/Rx operate in the 2.4 GHz band according to the BLE 5.2 specification [2].
Table 1-1 presents the features available in the three functional variants (Breeze, Vivid+, and Breeze-V).

Table 1-1: Transducers in Breeze/Breeze-V/Vivid+

Figure 1-1 illustrates the Breeze, Breeze-V and Vivid+ variants. All variants share the same external dimensions.

Figure 1-2 shows the enclosure external interfaces for each model. Four indicator LEDs are present underneath the circular light pipe on the front of the enclosures. There are two pushbuttons accessible by pin through holes on the front of the enclosures. There are also air vents on the front of the enclosures and on two sides of the enclosure to provide adequate airflow for the CO2 transducer. The enclosures are kept closed with 4 screws at the back. The PIR transducer is surrounded by a PIR mask located at the center of the enclosure for models that include a PIR transducer.

Specifications

The Breeze/Breeze-V/Vivid+ specifications are listed in Table 1-2.

80 mm x 80 mm x 30 mm (with mounting clip)
Weight| 128 g (with battery)
Power source| Battery operated (2xAA), with diode-based reverse polarity protection.
Network technology/Frequency band| LoRaWAN with different regional variants (see [1]) and BLE operating in 2.4 GHz ISM frequency bands
Air interface| LoRa and GFSK
Sensor Lifetime| Breeze model with optimum settings and baseline use case:1

· > 5.5 years with 2xAA LTC batteries Vivid+ model with optimal settings and baseline use case:

·  > 4.7 years with 2xAA LTC batteries Breeze-V model with optimal settings and baseline use case:

· > 4.6 years with 2xAA LTC batteries

Maximum transmit power| Lora: 15 dBm GFSK: 0 dBm
Number of indicator LEDs| 4 (2 green, 1 yellow, and 1 red)
Measurement sensing functions| Temperature, humidity, light, pressure, CO2
Detection sensing functions| Human movement
Temperature measurement accuracy| < ±0.3°C between 0°C and 5°C
±0.2°C between 5°C and 60°C
Humidity measurement accuracy| < ±4% between 0% and 100%
±2% between 20% and 80%
Light sensitivity| Detection of weak light to typical work light conditions (5 lux to 1000 lux)2
Peak sensitivity at 550 nm
Pressure measurement accuracy| < ±2 hPa between 300 hPa and 1100 hPa
CO2 concentration measurement accuracy| ±30 ppm +3% of reading between 400 ppm and 5000 ppm
Extended range ±10% of reading for an extended range of up to 10000 ppm3
Motion detection| Pyroelectric infrared sensor Ceiling mount:

· X-angle: 104° (no mask)

·  Y-angle: 104° (no mask) Height: 3 m (no mask)

Transducer Details

Temperature/Humidity Transducer

The Breeze/Breeze-V/Vivid+ includes a combination temperature/humidity transducer from Sensirion (SHTC3). It is a small footprint, very low power device. It features operation over I 2 C protocol and operates from 0% to 100% RH and -40°C to 125°C with a typical accuracy of ±2% RH and ±0.2°C. The typical and maximum accuracies specified across the operating relative

1 Baseline use case assumes room temperature, LoRa Tx power of 15 dBm, LoRa SF 10, and LoRa BW of 125 kHz. Optimal battery settings use the default report settings and with dynamic reporting mode enabled. PIR motion detection is assumed to be very frequent during active hours and very infrequent during inactive hours.
2 The sensor provides light intensity measurements, but they are not calibrated in lux. See the Technical Reference Manual for more details [3].
3 No data is available from the manufacturer on performance outside the range of 15°C to 35°C and 0% to 80% RH.The
humidity and temperature range of the sensor is shown in Figures 1-3 and Figure 1-4, respectively.

 Ambient Light Transducer

A phototransistor and bias resistor form a light detection transducer on the Breeze/BreezeV/Vivid+. The light sensor provides a sufficient window of detection to allow the detection of desired light levels. This window will be tuned as necessary by changing the resistor to give a detection window corresponding to the light levels to be detected. The output of the light transducer is an analog voltage that is read by the MCU ADC.
Vishay’s TEMT6200FX1 is a phototransistor specifically designed for ambient light sensing as it includes a filter to give a response similar to the human eye, thus being capable of detecting weak light to typical work light conditions.

 Barometer

A barometer is included in the Breeze/Breeze-V/Vivid+ in order to measure the barometric air pressure. TE Connectivity’s MS5607-02BA03 is designed for low power applications while providing highly accurate measurements. The sensor can operate at full accuracy over a range of 300 hPa to 1100 hPa, and can communicate over I 2 C or SPI protocols.
It also includes a temperature sensor in order to correct for the non- linearity of the pressure measurements over temperature. The pressure accuracy of the sensor is ±2 hPa while operating between 0°C and 50°C. The barometer also offers an extended pressure range from 10 hPa to 1200 hPa with reduced accuracy. The barometer’s temperature accuracy is ±2°C while operating between -20°C and 85°C.

 CO2 Transducer

The Breeze/Breeze-V/Vivid+ includes the Senseair Sunrise to measure the CO2 concentration using non-dispersive infrared (NDIR). It operates over an I 2 C interface and can measure in the range of 400 ppm to 5000 ppm with an accuracy of up to ±30 ppm +3% of the reading. This sensor also features an extended range of up to 10000 ppm with a projected accuracy of extended range ±10% of the reading.

PIR Transducer

A motion detection feature on the Breeze/Breeze-V/Vivid+ is implemented with a PIR sensor. Panasonic’s EKM1291111 is specifically designed to be sensitive enough to detect small movements with a wide field of view of 104° x 104°. The motion detection system uses a ceiling mount type lens that has an expected coverage area of 7.7 m x 7.7 m when ceiling mounted at a height of 3 m. Note that this is the theoretical maximum sense range claimed by the transducer manufacturer. The sensing range is determined as the projection of the transducer FoV on the ground, and therefore, should not be interpreted as the coverage area where the sensor can detect moving people. In general, due to the conical nature of the transducer FoV, people need to be closer to the sensor to be detected. The amount of IR radiation from a moving person, which is also impacted by the person’s clothing or type of skin cover, also plays an important role at determining the detection range.

Installation

Included Product and Installation Material

The following items are included with each sensor:

• A Breeze, Breeze-V, or Vivid+
• e-Ink Display (if one is ordered with the Sensor)
• Mounting Bracket
• User Guide

Safety Precautions

The following safety precautions should be observed:

• The Breeze/Breeze-V/Vivid+ is intended for indoor use only.
• The Breeze/Breeze-V/Vivid+ contains lithium batteries.
• NEVER allow small children near batteries: if a battery is swallowed, immediately seek medical attention.
• To reduce risk of fire, explosion or chemical burns: replace only with approved 2xAA LTC batteries; DO NOT recharge, disassemble, heat above 100°C (212°F) or  incinerate battery

Unpacking and Inspection

The following should be considered during the unpacking of a new Breeze/Breeze-V/Vivid+:

1. Inspect the shipping carton and report any significant damage to TEKTELIC.
2. Unpacking should be conducted in a clean and dry location.
3. Do not discard the shipping box or inserts as they will be required if a unit is returned for repair or reconfiguration.

 Required Equipment for Installation

There are no tools required for Breeze/Breeze-V/Vivid+ installation.

Breeze/Breeze-V/Vivid+ Mounting

The Breeze/Breeze-V/Vivid+ is designed to be mounted using the supplied mounting bracket.
The bracket can be attached using screws or double-sided tape (not included).
When mounting on a vertical surface, ensure that the Sensor will not be orientated with the case retaining screws towards the ceiling. This could cause the Sensor to accidently slip off the mount and fall. There are no orientation concerns when the Sensor is mounted to a horizontal surface.

Power Up, Commissioning, and Monitoring

Required Equipment

No special equipment is required to power on the Breeze/Breeze-V/Vivid+.

Power Up/Down Procedure

Once the sensor information has been added to the Network Server, pull out the battery tabs to engage the battery. The batteries must be removed to turn off the device, but  the external reset button can be pushed to simply reset the device; see Section 4.4.2 for a description of the reset function.

Operations, Alarms, and Management

Configuration

The Breeze/Breeze-V/Vivid+ supports a full range of Over-the-Air (OTA) configuration options.
Specific technical details are available in the Breeze/Breeze-V/Vivid+ Technical Reference Manual [3]. All configuration commands need to be sent OTA during a sensor’s downlink windows.

 Default Configuration

If dynamic reporting mode is enabled, the default configuration of the Breeze/Breeze-V/Vivid+ is as shown in Table 4-1. If dynamic reporting mode is not enabled, the Sensor  will act as if it is exclusively in active mode.

Table 4-1: Breeze/Breeze-V/Vivid+ Default Reporting Behavior

Remaining Battery

Capacity of the Sensor

| NS and Display| Every 5 (five) minutes| Every 1 (one) hour
Remaining Battery

Capacity of the Display

| NS and Display| Every 5 (five) minutes| Every 1 (one) hour
Ambient Temperature| NS and Display| Every 5 (five) minutes| Every 1 (one) hour
Ambient Relative

Humidity

| NS and Display| Every 5 (five) minutes| Every 1 (one) hour
CO2 Concentration| NS and Display| Every 5 (five) minutes| Every 1 (one) hour
Pressure| NS only| Every 5 (five) minutes| Every 1 (one) hour
Motion| NS only| Report motion after 1 (one) PIR event
Clear motion after 5 (five) minutes of no motion| Report motion after 1 (one) PIR event
Clear motion after 5 (five) minutes of no motion

Note:

• CO2 concentration and pressure are reported by Breeze and Breeze-V models only. For the Vivid+ model, the Sensor will update the Display such that the CO2  concentration field will be blank.
•  Motion is reported by Vivid+ and Breeze-V models only.

LED Behavior

The Breeze/Breeze-V/Vivid+ is equipped with four LEDs: two green (G1 and G2), one yellow (Y1), and one red (R1). Figure 4-1 shows the placements of each LED relative  to a user-facing the Sensor for reference.c

During the join procedure:

• After the Sensor has gone through the initial boot procedure, the join procedure will begin. During that time, the Y1 will blink continuously until the sensor has joined a network.

During normal operation:

• G1 will blink when the Sensor transmits or receives a LoRa packet.

• G2 will begin to blink while the Sensor attempts to communicate with the Display.
  o G2 will blink twice if the connection was successful.
  o R2 will blink twice if the connection was unsuccessful.

• Y1 will blink after the CO2 calibration push-button is pressed and released.
  o G2 blinks three times if any CO2 calibration was successful.
  o R1 blinks three times if any CO2 calibration was unsuccessful.

Push-Button Functions

The Sensor includes two pushbuttons: one to manually calibrate the CO2 transducer, and one to reset the Sensor. Figure 1-2 shows the location of the CO2 calibration and reset buttons relative to a user-facing Sensor.

CO2 Calibration Button

The Sensor features a push-button that can be used to manually calibrate the CO2 transducer when it is exposed to fresh air. The CO2 calibration button must be pressed for 2  to 10 seconds, and 30 seconds after the button is released, the Sensor performs a background CO2 calibration with a target of 400 ppm.
For optimal results, users should ensure that the Sensor is exposed to fresh air for several minutes before the calibration occurs. It is also recommended that users move away from the Sensor after pressing the button so as to reduce the risk of an inaccurate calibration. More information on how to calibrate the CO2 transducer can be found in the  Technical Reference Manual [3].

Reset Button

There is a reset button on the device, that can be pushed by a pin, such as a paper clip. The button should not be pushed hard. The reset is instant, i.e. the button does not need to be kept pushed. The reset restarts the microprocessor. All the FW load and configuration parameters in the Flash are remembered during the reset.

Compliance Statements

Federal Communications Commission
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.

To comply with FCC exposure limits for general population / uncontrolled exposure, this device should be installed at a distance of 20 cm from all persons and must not be co-located or operating in conjunction with any other transmitter.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:

• Reorient or relocate the receiving antenna.
•  Increase the separation between the equipment and receiver.
•  Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•  Consult the dealer or an experienced radio/TV technician for help.

Innovation, Science and Economic Development Canada
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science, and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause undesired operation of the device.
This device should be installed and operated with a minimum distance of 0.2 m from the human body.

References

1. LoRa Alliance, “LoRaWAN 1.1. Regional Parameters,” ver. 1.1, rev. B, Jan 2018.
2.  Bluetooth SIG, “Bluetooth Core Specification v5.2,” 31 December 2019.
3. TEKTELIC Communications Inc., “LoRa IoT Breeze/Breeze-V/Vivid+ Technical Reference Manual,” ver 0.6.
4. LoRa Alliance, “LoRaWAN™ 1.0.2 Regional Parameters,” February 2017. [Online]. Available:
   https://lora- alliance.org/wpcontent/uploads/2020/11/lorawan_regional_parameters_v1.0.2_final_1944_1.pdf.

[Accessed 12 April 2021].Breeze/Breeze-V/Vivid+ User Guide
T0007805_UG
Version 1.2
TEKTELIC Communications Inc.
Page 22 of 22

Documents / Resources

| TEKTELIC communications Vivid+ Multi-Purpose LoRaWAN IoT Sensor [pdf] User Guide
T0007805, 2ALEPT0007805, BREEZE, BREEZE-V, VIVID, Vivid Multi-Purpose LoRaWAN IoT Sensor, Multi-Purpose LoRaWAN IoT Sensor
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