Wow, 3.2 dBi  gain and 79 % antenna efficiency – a mega-great antenna, or is it?

Wifi BLE Bluetooth PCB antenna with cable

Do you use antennas in your products? Do you compare data sheets? Do you have problems comparing? Are the antennas in your device not compliant with the data sheet? Are there problems with radio certification? Then I will be glad to help you, starting with the analysis of the data sheets all the way up […]

Wi-Fi module – five minute set up

This Wi-Fi module arrived yesterday.  The complete package includes the Wi-Fi module,  a USB connector and a Serial Peripheral Interface (SPI) to USB converter. The operating voltage is supplied via USB from the PC. After plugging the module into the USB port, a standard terminal software application was started on the PC. With the first […]

WIFI for creating the IoT?

In the video they mention public #WIFI e.g. at airports. At Mobile World Congress #MWC 2013 WIFI had its one zone. If WIFI will rise in public locations like airports and railway stations it will rise in industrial applications as well. WIFI in IoT – practical paradigm I already guideline the development of applications where […]

RS9113 wireless M2M combo

What is the RS9113? The RS9113 is a chip or wireless module (RS9113-11-3) that comes with: WIFI 2.4 WIFI 5.8 GHz ZigBee Classic Bluetooth BT 2.1+EDR, BT 3.0 Bluetooth 4.0 (Bluetooth Smart, Bluetooth Low Energy) Calculation power on internal MCU for your own application Huge amount of interfaces for periphery like I2C, I2S, SPI, QSPI, […]

Seven at on one stroke – WIFI 2.4, WIFI 5.8, Classic Bluetooth, Bluetooth Low Energy, ZigBee, MCU and periphery

A fairy tale comes true. Seven at one stroke. Besides WIFI 2.4 GHz and 5.8 GHz WIFI also ZigBee, Bluetooth Low Energy and Classic Bluetooth is integrated. In addition, the controller in the module can be used for an individual application. As interfaces for peripherals are I2C, I2S, SPI, QSPI, UART, GPIO, JTAG and analogue […]

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. […]

Comparision of radio links inside an Android device and examples for applications

Useful radio links inside an Android Smart Phone Droidcon 2012 in Berlin 14.03.2012 /15.30 – 16.00 Harald Naumann Sensors, Interaction http://de.droidcon.com/session/comparsion-radio-links-inside-android-device-and-examples-applications A lot of people are not aware about other radio links inside a Android phone parallel to 3G and 4G radio link for voice and data communication. To explain the latest technologies we will […]

Google Maps Indoor and Google Maps Floor Plan Generator

Recently you can navigate with the new version Google Maps 6.0 in the building. Various airports and shopping centres in the U.S. have already been equipped. To navigate without GNSS signals (no GPS and Glonass) you need some radio beacons along the way. A mixture of natural radio beacons, such as GSM base stations and […]