About Samraksh  


 Wireless Sensor Network Expertise We are experts in low-power, reliable wireless sensor networks (WSN) with world-class experience and deep, innovative research into the hardware, software and algorithmic issues they present. We design, manufacture and sell inexpensive high-performance, low-power, scalable and easy-to-program components and systems.

WSN-Enabling Products Besides the eMote .NOW and the BumbleBee highlighted below,  we also provide a range of other sensors and supporting items. Complete network solutions can be deployed using these components.


A low-power, mote-scale Pulsed Doppler Radar sensor board. The Samraksh Company's first offering in a suite of Wireless Sensor Network products.

Comes with the BumbleBee Software Package: device drivers, data collection modules and sample applications for download.

For more information about the BumbleBee, see the Learning page.

Key features:

  • Operates at a 5.8GHz center frequency
  • Coherent quadrature output (both I & Q)
  • Maximum detection range of 10m
  • Maximum range controllable via software down to 1m with range gate sharpness of 0.2m
  • On-board (internal) antenna with 60 degree conical coverage pattern
  • Optimized for human-like targets
  • Responds to radial velocities between 2.6cm/s and 2.6m/s
  • Easily interfaced with mote devices
  • Ships with battery pack and with cabling for use with the .NOW mote
  • Connector boards / do-it-yourself instructions available for interfacing with IRIS/MICAz and Imote2 motes

The BumbleBee Radar enables a number of low-power, wireless sensor network applications including simple motion detection, robust intrusion detection using velocity estimation, velocity-based motion tracking and vibration monitoring.



Evaluation Kit. Contains 4 single units plus a radar reflector as a testing accessory.

USD 400.00


Single Unit. Contans a radar, battery pack and .NOW connectors.

USD $100.00





User's Manual (pdf)
Spec Sheet (pdf)


  • Note: drivers for .NOW are included with eMote.

  • Device drivers in TinyOS 2.x for TelosB/Tmote Sky motes, IRIS/MICAz motes, TelosB/TmoteSky (as a surrogate ADC for Imote2 motes)

  • Device drivers for Imote2 .NET MicroFramework using the ADC on the ITS400 sensorboard and using  the TelosB/TmoteSky as a surrogate ADC for data acquisition over the I2C bus

  • Data Collection Modules

  • Sample Detector Applications 

Bumblee Software v 200   



Tuscarora Engagement Opportunity

Tuscarora is a framework for developing and deploying  multiple Application Specific Network Patterns (ASNPs) in Mobile Adhoc Networks (MANETs) . The Framework serves as the narrow waist of the system, decoupling the Application Layer and the ASNPs from the underlying radio and hardware platform and enabling portability, scalability and extensibility. Tuscarora is being developed through Samraksh’s involvement in the DARPA’s Fixed Wireless at a Distance and C2E programs. A limited version of the framework is now available for use. To request an evaluation version,This email address is being protected from spambots. You need JavaScript enabled to view it..