The Things Network – LoRaWAN

By |October 31st, 2015|

We are at the start of a worldwide roll-out of a global open crowdsourced Internet of Things data network. If you have any interest in IoT or want to be part of the beginning of something big, check out the page that explains all, The Things Network.

In short the guys behind this build a wireless network […]

Mohio – Visualize your Cloud

By |August 6th, 2015|

I’m a big fan of Evernote and sometimes I just go through my notes, notebooks and tags to clean things up. Sometimes I then just check Google to see if people have good suggestions related to what I’m doing. In this case, I came across a site called where you can connect some of […]

MQTT Data display using ESP8266 and OLED display

By |July 20th, 2015|

Finally I made some time to play a couple of hours with a new type of microcontroller that offers a lot of possibilities. Especially for Internet of Things purposes!

I’m talking about the ESP8266 which, at the time of introduction, was used often as a very cheap WIFI adapter for i.e. Arduino’s. The ESP8266 costs a […]

Mac OS X – write images to SD Card with high speed

By |February 13th, 2015|

Writing SDCard images using my Macbook took way to long, up to half an hour to write one simple Raspberry Pi image to a SDCard. I just did what many instructions told me to do. You will probably recognize this command:

dd if=/path/to/image/file.img of=/dev/disk3 bs=1m  (where /dev/disk3 depends on your system).

Then I came across a comment […]

Update OMD 1.00 to 1.21 on Raspberry Pi

By |February 2nd, 2015|

Today the new Raspberry Pi 2 model B was announced. ARMv7 CPU with 1 Gb of memory. This made me search for OMD (Open Monitoring Distribution) for ARMv7. While searching I stumbled upon an update OMD 1.21 for ARMv6 which is the original Raspberry Pi. I have two Pi’s running. One at my location and […]

Limit SD Card writes on Rasberry Pi using Ramlog

By |January 17th, 2015|

A SD card has a limited amount of writes it can handle. The Raspberry Pi will write to log files a lot and reduce the lifetime of your SD Card.

A simple solution is to use Ramlog which creates a temporary disk in memory where the logfiles are stored and updated. At boot the log […]

Raspberry Pi Open Monitoring Distribution setup guide

By |January 2nd, 2015|

I use a setup of some Raspberry Pi’s to monitor my own systems and some systems of my customers. My main goal is to be informed on system status (warnings and criticals) via one portal and preferably before my customers notice incidents on their systems.

There is no need for expensive and energy consuming systems to […]

Polyes Q1 – The safest , Cool-ink 3D Pen

By |January 1st, 2015|

On Kickstarter I found a nice project. The Polyes Q1 3D pen! Polyes is the first 3D printing pen with blue light and real inks.

Using this pen you can draw objects in 3D space. The ink is hardened using an UV or Blue led light. They offer all kind of inks, from colored inks to […]

Ingocraft 3D Printable construction kit

By |November 25th, 2014|

I found a nice project on, Ingocraft 3D printable construction kit and 3D modeling App.

The Ingocraft construction set combines hands on making with a fun 3D modeling app, and is 3D printable for customizing your kit.

I really like the approach of having an App to learn designing, an out of the box toolkit ready […]

Synology DSM 5.1 upgrade and Rsync Backup

By |November 9th, 2014|

After upgrading my Synology from DSM 5.0 to 5.1 I noticed that Rsync from my Macbook to the Synology didn’t work anymore. Read my post on how to set Backup from Macbook to Synology using Rsync. To fix the issue was quite simple:

In the Synology DSM go to the config screen, choose Backup and Replication, […]