M2M Machine to Machine

Archive for 'M2M FAQ, hints, tips' Category

Smart-Home by Android@Home, 6LoWPAN and Google Plus?

For a lot of people 6LoWPAN is just a piece of cake for the Smart Home or Ambient Assisted Living. My wish is a Smart-Home on a reasonable price level. In my opinion we need some kind of web based interface to get the coffee machine live on the display of the smartphone or laptop. [...]

Python in M2M

Programming language Python
Comparing Python with C++
Python code is typically 3-5 times shorter than equivalent Java code. However it is often 5-10 times shorter than equivalent C++ code. One Python programmer can finish in two months what two C++ programmers can’t complete in a year. Python shines as a glue language, used to combine components written [...]

Microchip microcontrollers for M2M and Smart Home

Microchip uC PIC32MX795F512L and PIC24FJ256GB110
Why this two out of hundreds nice Microchip uCs or others suppliers?

PIC32MX795F512L is the high end of Microchip with most features, Flash RAM and ROM
PIC32MX795F512L comes with 80 MIPS, 2 CAN, 1 LIN, 6 UARTS … (more at table as below)
PIC32MX795F512L is a 32-Bit uC and available in a pin compatible [...]

Do you recommend requesting delivery receipt of SMS for M2M applications?

Yes and no.
It really depends on the application. A delivery of a SMS is 6 -10 seconds, up to hours and maybe never. In case of emergency SMS can be a risk. Worst case the GSM network is busy. A good example are public events like soccer games or outdoor music festivals in urban canyons. [...]

What will be the power consumption of the GSM GPS Glonass tracker?

The power consumption is from nearly 1 uA to 480 mA in average. The 1 uA we get if we create an asset tracker behind oil on canvas. The asset tracker will wait for an event all the time. The 480 mA we get by GPRS class 10 in GSM power level with TX output [...]

6LoWPAN, Bluetooth LE, ANT+, GPRS, WIFI, DSL, IP ?

Router, nodes, … this came in today
“Harald, the term “router” you are using, would also mean WiFi Access Point , would it not?
and the topology here would be a star network, correct? with “router” as a star in this architecture.
there is no interconnection between “nodes” , correct”
Right now I am talking about different technologies to [...]

6LoWPAN question: A Low power, what is it good for? Just a waste of time. Everything was already set.

This question came in this morning by comment to a previous post. We’ve been talking of the Internet-of-Things for years, but we forgot to inform our engineers how it will work.
The website of the engineer who commented is showing medical applications. I am able to connect all their equipment to my WIFI network easily. I [...]

Google´s Open Source radio protocol on 6LoWPAN at a glance

Features of Googles Radio protocol

868 / 915 MHz instead of 2400 MHz
Frequency hopping instead of Direct Sequence Spread Spectrum like 802.15.4
Licence free 6LoWPAN instead of ZigBee
Open source instead of proprietary

Advantage of Google´s Radio protocol

Better coverage in buildings
End-to-end security if they use IPsec
Proven standard IPv6 plus 6LoWPAN
No NDAs
No approval process to build accessories

Benefits of [...]

6LoWPAN for dummies

6Lo… what?
This is the first reaction that you get, if you use the word 6LoWPAN. The word is not easy to speak and spell. Marketing wise is a nightmare. Anyhow, Google will use it. If Google will use the word often enough, then the people will start to remember it.
6LoWPAN meaning
IPv6 over Low power Wireless [...]

Android smartphone with ANT+ radio for automatic lock of GSM/GPS tracker

State of the art Android smartphones of Sony Ericsson supports the radio link called ANT+. Sony Ericsson launched five different mobile phones with ANT+ radio inside on the 6th of January 2011 at CES in Las Vegas. The APIs you can download free of charge at http://www.thisisant.com/pages/developer-zone/android-api
Below is a list of the existing mobile phones [...]