Hmote 2420

written by Junseok KIM, last updated 18 April 2008

After Sentilla company had purchased Moteiv, purchasing Tmote is not available and technical support for Tmote hardware discontinued.

Crossbow still sales TelosB mote which is very similar to Tmote, so you can buy TelosB as a replacement for the Tmote.

In this document, I'll introduce Hybus mote (Hmote) which is a clone of Tmote.

Usually, I prefer using Hmote than Tmote because Hmote's performance is better.

Hybus enhanced the performance of Hmote's internal PCB antenna with UCI (University of California, Irvine).

From testbed experiments, I can observe that Hmote's transmit range is longer than Tmote's and the reception ratio performance of Hmote is much better than Tmote.

Hmote doesn't equip onboard sensors thus, if you need sensor functionality, you have to buy an additional sensor board and plug it into the Hmote's expansion connector.

If you live in Korea now, I strongly recommend choosing Hmote rather than Tmote (or TelosB).

Because Hmote ($100) is much cheaper than Tmote ($200) in Korea and Hybus can provide a fully technical support for Hmote.

I believe that the Hmote can be a good replacement for the Tmote.

However, if you are not in Korea, there are some problems.

Hybus doesn't provide well-made English manual yet and I'm not sure that whether they have a good procedure about international sales or not.

Anyway, Hybus and my research lab jointly try to upgrade Hmote's performance and provide reliable performance.

In addition, Hybus recently begin to sell their new products: Nanotron 802.15.4a radio chip based mote; CC2430 SoC based mote (and its mini version); and various external sensors.

For your better understanding, I will present a brief comparison of Tmote and Hmote.