M2M Machine to Machine

Archive for 'M2M FAQ, hints, tips' Category

Waterproofed Android smartphones, tablets and pet trackers

Android devices and pet tracker for the real hard working live
As Janis Joplin already told “My friends all drive Porsche, I must make amends”. Two of my friends own an iPhone. They always try to own the latest smart-phones. I will amend and bypass the tablet and order the new Motorola Razr Droid, because it [...]

MQTT Q&A

Personal MQTT Q&A by Andy Piper
Andy contact me with the text as below. Hopefully it will bring some light in the tunnel.
“Hi, actually traffic was up by even more than that on day 2 (I’m the site admin), and there was a similar but smaller spike back in August when the Facebook news [...]

How to charge wireless?

Who can help with a proposal? Who is interested in delivering?
I have the need to make a proposal to charge the battery wireless for several project customers. We found the Wireless Power Consortium: http://en.wikipedia.org/wiki/Wireless_Power_Consortium
We emailed the Wireless Power Consortium and a few companies listed on the official website of WPC http://www.wirelesspowerconsortium.com/ but got no answer.
The [...]

MQTT in Android mobile applications

How to receive push notifications using MQTT in an Android mobile application
Dave Lane was so friendly to describe the using of the MQTT protocol with Android. Many thanks to Dave. It will save developers some time and hopefully one of them will make some more code, tips and hints public. The whole story of Dave [...]

Why SAR tests are expensive?

SAR tests are expensive, because there is an expensive robot arm plus expensive software on a PC in use
Nevertheless, there is some manual work to do as well. The pictures as below will make the described process visible.
The robot has on the end of its arm a probe to measure the radiated energy. This probe [...]

Q&A: Smart Home, Android@Home, NFC, Bluetooth and 6LoWPAN

Questions and answers about Smart Home, Android@Home, NFC, Blueotooth and 6LoWPAN
Q&A about Smart Home, Android@Home, NFC, Bluetooth and 6LoWPAN during the event at c-base in Berlin.
Slides in upload here: http://www.box.net/shared/dhb87ifp9k7ox2o6fmil
c-base e.V.
The c-base e.V. is a non-profit organization to promote education in the areas of hardware, software and network technology. The multi-faceted non-profit organization is [...]

M2M device testing for antenna performance

With the endless array of applications and form factors for M2M devices, it’s very common that the device under test really shouldn’t or can’t be tested in the standard way.
If you plan a M2M device with external cellular antenna, then you will find a supplier for common antennas easy. If you plan a small device [...]

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 [...]