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, since Bluegiga added the possibility to upgrade the BLE11x modules firmware over the air (OTA) in v1.2 of their SDK I spend some time to test this features on the BLE112 and BLE113 Eval boards successfully. In order to prepare the setup I ordered some of the necessary SPI Flash Chips from Digikey with part number “W25X20CLSNIG-ND” in 8SOIC package. I used the schematic as illustrated in figure 6 of the Application Note “Implementing Over-the-Air Firmware Upgrade” as shown 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, a few weeks ago I found a 2.7 Inch e-Paper Display provided by Embedded Artists: http://www.embeddedartists.com/products/displays/lcd_27_epaper.php. It supports Arduino and is cheap EUR29 compared to other solutions in that size available in the web. When I hook i up to an Arduino UNO R3 it looks like this, which is described in their document “Embedded Artists 2.7 inch E-paper Display & Arduino UNO”: I don’t really like these kind of setups.

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.

Hello everyone, it seems that the blog was hacked yesterday night. I was able to recover the posts, but the images are lost. I will close the gaps asap so that the posts and pages are readable again. Sorry for any inconvenience, Michael.

Hello everyone, the BLEBee v1.0.0 is available for sale. Please visit Seeedstudio’s Depot following this link http://www.seeedstudio.com/depot/blebee-v100-p-1632.html to get one or more. Thanks, Michael.  

Hello everyone, the hunt has ended more quickly as I imagined. The easter egg is hidden behind the app icon in the settings screen. You can see it by double tapping on the icon. The winner is: Tian Zhang (@KhaosT) He will receive the BLEBee v1.0.0 as soon as it can be shipped from Seeedstudio. Thanks for participating, Michael.