Have fun by reading the interesting article. If someone is interested in an own Bluetooth 4.0 (Bluetooth Low Energy, Bluetooth Smart) application, then just ask for an evaluation kit by email to harald.naumann (at) gsm-modem.de
Category: M2M FAQ, hints, tips
Comparison of NFC, Classic Bluetooth, Bluetooth Smart and WLAN
Presentation at Droidcon 2012 in Berlin 16 slides about short range radio links inside an Android device for download: http://www.box.com/s/d538e0081ff656c3d899 The focus of this presentation is on Bluetooth Smart. Bluetooth Smart was called WiBree years ago. Later on it was renamed to Bluetooth Low Energy also called Bluetooth 4.0. Four names for the same technology. […]
Quick Start Guide for Wahoo Heart Rate Belt and Motorola Razr Droid
Please follow the described steps carefully to save time by powering on your Android heart rate demo application on your Motorola Razr Droid. 1. Preparing your Motorola Razr Droid Go to the Android Market and download the app called nRF HRM Demo to your Android Smart Phone. https://market.android.com/details?id=com.nordic.ble Install the app on your phone. Do […]
Smart Home – HA Home Automation on Open Source
Since a few month I am pushing Smart Home and HA. I am able to support my customers with several kinds of wireless technologies like: 6LoWPAN ZigBee up to ZigBee IP Bluetooth 2.1, 3.0 and 4.0 Proprietary protocols on 433, 868, 915 and 2400 MHz (pear to pear, star and meshed) WIFI Maybe Google’s employees […]
Workshop LTE – Fragen und Antworten zu Tests und Zulassungen
The LTE Workshop will be offered in German language. Sorry for that. A summary and minutes of meeting I will make public later on in English. LTE Workshop Unten stehend die Agenda zum LTE Workshop. Mein Beitrag ist “Antennendesign und Optimierung”. Vorab: Mit der falschen Antenne schafft man niemals einen PTCRB OTA Test. Die falsche […]
GPS repeater
This GPS repeater kit is a complete re-radiating system to allow you to re-radiate the GPS carrier indoors. The GPS repeater kit consists of a roof antenna, a plug-in re-radiating amplifier and a re-radiating antenna. The roof antenna is a L1/L2 35dB Gain, 50 ohm antenna. The re-radiating amplifier has a 110V/220V plug-in transformer which […]
Can you please give me a hint why it can’t register into GSM network?
Question reached me by email. Q: I write you because I am having troubles with the GSM/GPS shield. Can you please give me a hint why it can’t register into GSM network? A: I will explain you how to power on a GSM module in in general. 1. Power supply / antenna Connect GSM antenna […]
Liquid level meter with integrated GSM modem
This friendly support question liquid level meter with an integrated GSM modem reached me today “I am not sure if this is the appropriate way to ask a technical question or if you have the time to answer this kind of questions atall, but I am desperate so I will just try. I purchased a […]
6LoWPAN Bluetooth Low Energy
Out of 6LoWPAN mailing list In April, we adopted the Bluetooth Low Energy draft as a working group document, which since has seen four revisions. The authors now believe that this document is ready for last-call, and I haven’t heard otherwise from the WG. We now start the Working Group Last Call on: http://tools.ietf.org/html/draft-ietf-6lowpan-btle-04 Once […]
How to minimise IP traffic in cellular networks?
The questions related to IP traffic in cellular networks reached me. Q: The other question about data transfer is about how cell phone companies charge for data transmission. If I send a IP/UDP packet, this will obviously be billed to me. But if somebody sends me an IP/UDP packet will it be charged only if […]