What is the frequency of operation of your modules?
We operate at 2.4Ghz, 865 ISM band (license free band in india) which is universally a license free band.
What interfaces are available on your module?
3.3v CMOS UART, I2C and SPI are the interfces available on our modules.Check the datasheets for the availability on the individual module.
What is 802.15.4 standard ?
IEEE 802.15.4 - 2006 is a standard which specifies the physical layer and media access control for low-data rate wireless personal area networks (LR-WPANs). It is maintained by theIEEE 802.15 working group.
Refer http://en.wikipedia.org/wiki/802.15.4 for more details
How do I interface your module with our microcontroller?
Most microcontrollers are shipped with a 5V or 3.3V UART. You can directly interface our module with a 3.3V interface on your controller.
Do you support Hardware Handshaking?
Yes, RTS/CTS can be enabled. However, enabling the hardware handshake would reduce the number of I/O lines available by 2.
Do you support Software Handshaking?
Yes End to End Acknowledge mode can be enabled to ensure data reliability.
What is the Baud rates supported?
The serial Baud Rate is programmable from 2400 to 115200 bps.
Do you have any sleep modes?
Yes, we support with two different types of sleep modes. Pin Assert Sleep and Cyclic Sleep.
When the module is in the Pin Assert Sleep mode, will the module wake up if there is any activity either on the RF or the serial side?
No, till such time the concerned pin is pushed to the non sleep state, the module remains in the sleep state.
What is the Current Consumption of your modules?
Refer our user manual.
What kind of networking does your module support?
We have two different firmware, TarangNet and TarangMesh. TarangNet support STAR networking, i.e., Point to Point or Point to Multipoint Communication
TarangMesh support Mesh Networking
Do your modules have any I/O lines?
Yes, our modules come with 8 I/O lines. They can be programmed either to be input or output lines.These lines are multiplexed with few ADC lines .Please refer to the individual data sheets for further details.
In TarangNet, how many nodes can a central unit support?
65K units.
What are the safeguards against RF interference?
Software configurable channels are available in few modules. You could use the frequency with least activity to stay away form interfence.Few modules use Frequency Hopping which are very immune to interference
What is the time delay introduced by each hop in your mesh networking
Approximately 10 msec.
What is Line of Sight(LOS)?
An unobstructed view between two RF devices. To achieve the maximum range between two or more RF devices, LOS is a must. LOS can be achieved in most cases by simple elevating one or mode devices.