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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for October 30th, 2017

Android app writers: How to lose your end-users’ notification privilege…

Posted by jpluimers on 2017/10/30

Android apps make sounds when posting notifications. So adding useless gets you on the blacklist quickly thereby disallowing your app for posting any notifications at all.

Kristian shows how and why at

How to lose notification privilege:

  1. Use notification for marketing.
  2. Long press.
  3. Disable.

It’s that easy. You never force grab my attention for marketing a second time, especially since Android notifications by default come with sound now. This one woke me up.


Posted in Android Devices, Google, Power User | Leave a Comment »

How to connect S+DA0003 using SFP between MikroTikCRS226 and MikroTikCCR1009

Posted by jpluimers on 2017/10/30

Mikrotik and SFP versus SFTP+ is always confusing especially as the text on their equipment and their documentation doesn’t show well which situations work.

Equipment text is further on, this is their text searchable documentation:

As usually, a long search in the forums reveals the background information:

[WayBackSFP in SFP+ slot – MikroTik RouterOS: 10Gb SFP+ sockets are usually backward compatible with SFP, but this is not guaranteed.

There are two tricks involved to get an SFP connection between these devices working:

Read the rest of this entry »

Posted in Internet, MikroTik, Power User, routers | Leave a Comment »

ModMyPi | Cluster HAT Kit Inc. 4 x Raspberry Pi Zero

Posted by jpluimers on 2017/10/30

Interesting stuff; I wonder if there is a case for it as well:

The Cluster HAT interfaces a (Controller) Raspberry Pi A+/B+/2/3 with 4 Raspberry Pi Zeros Configured to use USB Gadget mode, it is an ideal tool for teaching, testing or simulating small scale clusters.

This Kit Includes 1 x Cluster HAT V2, 4 x Raspberry Pi Zero’s, 4 x 16GB Micro SD Cards.

Please Note. A Raspberry Pi B+/2/3, with SD Card & Power Supply are also required for set up. These items are NOT Included in the Kit but can be purchased separately.

Source: [WayBackModMyPi | Cluster HAT Kit Inc. 4 x Raspberry Pi Zero

Via Matthijs ter Woord.


Posted in Development, Hardware Development, Hardware Interfacing, Raspberry Pi | 2 Comments »

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