Product specifications
nanotron swarm bee LE V2 Module; MN02SWBLE
Radio technology: Chirp
Embedded 2.4 GHz Chirp Radio Location Awareness and Concurrent Wireless Communication
Overview
swarm bee LE V2 is nanotron’s second generation swarm product family combining flexibility and integration with enhanced power management, simultaneous support for collaborative and fixed location systems, all housed in a rugged module suitable for embedded industrial environments.
Integrated API
The integrated firmware swarm API enables customers to speed up development and get the products to market quickly.
Ranging & Communication
With nanoLOC swarm bee LE V2 radios can measure distance to each other using Time of Flight (TOF). At the same time, data can be exchanged between them.
Movement & Temperature Detection
The on-board MEMS sensor detects 3D acceleration and temperature changes. The sensor is controlled by swarm API.
RSSI Detection
RSSI values of signals from remote nodes are readable through swarm API.
Low Energy (LE)
With a new power management concept the radios can work in different power modes to optimize energy consumption and lengthen the battery lifetime. Power modes can be configured through swarm API.
swarm API
From version 2.1 onwards, the enhanced firmware swarm API supports three protocols – ASCII, BINARY and AIR - for direct communication between host and swarm radios as well as for reconfiguration of remote swarm radio nodes over the air. Using API commands, MEMS sensor data, RSSI value, battery level etc. of swarm radios can be accessed. Refer to [1] for a detailed description of API commands.
Power Supply & Power Management
A single 3.3 V supply voltage is required to operate the radio. Supply voltage tolerances allow for direct connection to a 3.6 V LiPo battery or 5 V USB. The swarm bee LE radio can go to sleep and only wake up periodically. The underlying power management con-cept enables the cooperation between the radios even if they sleep most of the time.
Applications
The swarm bee LE V2 radio is a fully integrated wireless node. It works in applications with both collaborative location technology based on TOF (ranging) and fixed location technology based on TDOA (time difference of arrival), and supports concurrent communication. Depending on application requirements, swarm bee LE V2 can be designed as a basic tag without host con-troller or as a smart tag with an external host. Refer to [2] for more information.
swarm bee LE V2 DK Plus board
swarm bee LE V2 Development Kit Plus (“DK Plus” for short) is an useful tools for users to get quick acquaintance with the basic functionality of swarm bee LE V2. The Dev. Board consists of a swarm bee LE V2 module, a header board and an antenna (see figure below).
The DK Plus board comes with antenna and swarm PC Tool which demonstrates ranging application, sensor monitor etc.
References
[1] swarm API User Guide V 3.0.
[2] Application Note – Tag Design with swarm bee LE
Key Features
Frequency Range ........................... ISM-Band 2.4 GHz (2.4~2.4835)
Modulation ................................... Chirp Spread Spectrum (CSS)
Transmission Modes......................... 80 MHz, 1 Mbps or 250 Kbps
ToA capture accuracy....................... < 1 ns (better than 30 cm)
Typical air time per ranging cycle .......... 1.8 ms
RF output power.............................. -22 ~ 16 dBm
RF sensitivity @80/1 mode .................. -89 dBm typ
RF sensitivity @80/4 mode ............... ...-95 dBm typ
RF interface ....................................50 Ohm RF Port
Host interface (UART)......................... 500 bps ~ 2 Mbps
Supply voltage ................................. 3.0 V ~ 5.5 V
Maximum supply voltage ripple ............... 20 mVpp
Active power consumption* ................... max. 120 mA during transmission, 60 mA during receive @80/1 mode
Power consumption in sleep mode* ........... 5.5 mA (transceiver disabled, all peripherals on)
Power consumption in snooze mode* ......... 4.5 μA (transceiver disabled, all peripherals off, wake-up by timer))
Power consumption in nap mode** ............ 4.5 ~ 600 μA (transceiver disabled, UART off, wake-up by interrupt)
Power consumption in deep-sleep mode* ......... ≤ 1 μA (device completely disabled)
Operating temperature range ..................... -30 ~ 85°C
Dimensions............................................ 40 mm × 24 mm × 3.5 mm
Weight ................................................ 7 g
* Power consumption in all modes is measured at 20°C, 3.3 V.
** Power consumption in nap mode depends on interrupt sources (GPIO pins or MEMS or both).
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