News

Hello everyone, since my DropBeacon iOS App is now available for sale in the Apple App Store, I added a small product page illustrating the use of the app in a short Vimeo video. Thanks for reading, Michael.

Hello everyone, after ages I published another article in the proceeding of the XII Usability Day in Dornbirn Austria: Kroll M., Schmidt-Weitmann S., Zecchino W., Otto U., Meienberger B., Brockes C. LILA – Long Independent Living Assistant in: Beiträge zum Usability Day XII, Assistenztechnik für betreutes Wohnen 16. Mai 2014 ISBN 978-3-89967-943-4 The article gives an introduction about the project/product I’m currently working on at emineo AG. Thanks for reading,

Hello everyone, since I published the blog post about the BLE112/BLE113 OTA firmware upgrade functionality into BLExplr, users are asking me about the DKBLE11x module I created to test this. No I published the eagle files, a BOM and a link to OSHPark to order the PCB directly. The link to the github repo is: https://github.com/michaelkroll/Hardware-Tools/tree/master/DKBLE11x-OTA-AddOn-Board and the permalink to OSHPark where you can order the PCB is http://www.oshpark.com/shared_projects/nWPpYei9 Please do not hesitate to contact me using the boo or my forum at http://forum.

Hello everyone, after I read an older Java Magazin Article about Oracle targeting the IoT world with it’s JavaME 8 platform I tried to install and run it on the STM32f4 discovery board. After downloading about 1GB of tools and installing it on a Windows7 machine, I finally flashed the discovery board with the VM. Installed some USB drivers and tried to connect to upload a MIDlet flashing an LED similar to the Arduino Blink demo.

Hello everyone, some people asked me how to use the ranging feature of BLExplr to range for beacons. So I decided to write a blog post describing how to achieve that. Please make sure that you have installed the latest version 1.5.2 of BLExplr installed. You can get it from this AppStore link for your convenience: https://itunes.apple.com/us/app/blexplr/id524018027 In order to range a beacon, of course you must have a hardware beacon or another iPhone where you can simulate a beacon.

Hello everyone, you might remember my post about my first OTA experiences with the BLE11x and SDK 1.2.1 Build91. I was using the bulky prototype hand soldered module as illustrated below. A few days ago I received the PCB I designed for my DKBLE11x OTA AddOn Module which is only about one square inch in size as illustrated in the picture below. Attached to the BLE11x development board (here the BLE112 Evaluation Board) it looks like the picture below.

Hello everyone, after some people raised an interesting and I think important question concerning iBeacons as comment on my blogpost http://www.mkroll.mobi/?p=1120, I decided to write a post regarding those questions only. Feel free to comment on this post or start a discussion in the forum at http://forum.mkroll.mobi/viewforum.php?f=17 where I opened an iBeacon related area. So back to the question raised on the blogpost which was originally: I think this is correct, but there are some iBeacons commercially available already, such as:

Hello everyone, this weekend I received a SODAQ beta board for some testing with the BLEBee and just grabbed some parts from my electronic boxes to create a “Plant Moisture Sensor”. The part list for this little project is: 1 SODAQ Moja Board 1 BLEBee (http://www.seeedstudio.com/depot/blebee-v100-p-1632.html) 1 Groove Moisture Sensor (http://www.seeedstudio.com/depot/grove-moisture-sensor-p-955.html) 1 Groove Cable (http://www.seeedstudio.com/depot/grove-universal-4-pin-20cm-unbuckled-cable-5-pcs-pack-p-749.html) 1 Lipo Battery 1 Mini USB Cable The parts are shown in the picture below:

Hello everyone, today I moved my videos to Vimeo, since my Youtube videos were no longer available after I “deleted” my Google Plus account. I was somehow nagged all the time when I logged into Gmail and popups came up asking me to open a G+ account. The buttons were Yes, Yes maybe, and a confusing button which might say no. So I reactivated the G+ shit again and had to delete it again 🙁

Hello everyone, the photos in blog posts and pages are all back now (hopefully). If you find that something is missing somewhere, please let me know and I will add those back if I have backups somewhere. Thanks, Michael.