Antennas can be printed direct on plastic. This saves space and saves money as well. Not even the antenna can be printed; some PCB tracks can be printed as well. The enclosure can be used like a PCB. It can hold LEDs, buttons, connectors or whatever you like. Even a touch panel could be a […]
GSM phone – 15 years on a single charge of an AA battery
Not to bad. Link to the description of the phone. http://www.intomobile.com/2012/05/16/spareone-phone-lasts-15-years-single-aa-battery/ Nevertheless I am working on a 65 gram bird tracker with the target to run endless. Right now Eneloop batteries are in use. Eneloop offers a self-discharge of 25% within 3 years. If the self-discharge is linear, then after 15 years 23,7 % capacity […]
70mm x 40 mm GSM / GPS tracker
The sketch I made during a three day technical training related to GNSS (GPS, Glonass, Beidou, Galileo, QZSS). The PCB can be even smaller, but this will minimise the efficiency of the antennas. The GPS chip antenna would like to have a ground plane of 22,5 mm left and 22,5 mm right. 22,5 mm x […]
Wireless M2M training for free: May 22-24, Dortmund, Germany
Developers that are interested in can get 1 to 3 days trainings on Wireless M2M free of charge. Nevertheless the 3 days training you can book for Berlin later on as well. 22 – 24th. of May in Dortmund and 25 – 27th. of Sep. in Berlin Form for registration: http://www.box.com/s/lakuesy1po/1/247810095/1928331089/1 Please excuse that the […]
WiFi, Bluetooth, GSM? Whatever happened to X10?
The question as below reached me after publishing the Home Automation Solution on the Google TV box on different channels. http://www.gsm-modem.de/M2M/m2m-componets/home-automation-on-google-tv-box/ I would like to share it with you. WiFi, Bluetooth, GSM? Whatever happened to X10? Thanks for the links Harald. They are definitely applicable to M2M! The TV box we got from Google helps […]
Home Automation on Google TV box
As promised some days ago, the video about the Google TV box in Home Automation is ready. On 22th. of May the wireless road-show will start in Dortmund. In Dortmund we will show the home automation application on Google TV box live. Developers that are interested in can get 1 to 3 days trainings on […]
Home Automation on Google TV Setup Box
I just would like to inform you that I will launch a Home Automation application on the Google TV Setup Box next week. HA already got a high interest at Droidcon in Berlin.. Maybe you or friends are interested in HA as well. The next step will be the upload of a video that shows […]
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. […]
Android smart phone controlled by NFC
There is a nice free of charge NFC app at Android market. The author offers the source code as well. NFC app features enable/disable air plane mode on tag detection start an external app on tag detection enable/disable Bluetooth on tag detection enable/disable WiFi on tag detection switch ring tone on/off on tag detection set […]
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 […]