Assume we would like to execute several independent tasks in parallel and we would like to wait till these tasks are completed. For example we would like to copy a set of files to several (remote) hosts and get a signal when we are ready with this copying task to ALL hosts so we can… Continue reading Parallel bash scripts – waiting for completion
Raspberry Pi: Your cheap Automatic Identification System (AIS) receiver
In this tutorial you will learn how to teach your Raspberry Pi to become a brave Automatic Identification System (AIS) receiver. What is AIS? The Automatic Identification System (AIS) is an automatic tracking system used on/for ships. It transmits information like identification, position, course and speed. Ingredients Raspberry Pi (2 model B) DVB-T-DAB-FM receiver Client… Continue reading Raspberry Pi: Your cheap Automatic Identification System (AIS) receiver
Dynamic public IP-address / Call – Home
Assume you do have a computer connected to the Internet which obtains it’s public IP-address dynamicly. Some providers like 1und1 in Germany require that the xDSL line is reset every day at least one time. At that moment you obtain a new IP-address from a pool of addresses. Privacy This dynamic IP-address is great if… Continue reading Dynamic public IP-address / Call – Home
Home automation: Controlling your heating remotely
When buying my house we went during the visit also to the basement. At this place the so called Mercedes of the house was installed: The Vitola 200 oil-fired heating/boiler controlled by the Vitotronic 200 type KW2 produced by the firm Viessmann. Installation and material was about 6000 euro when checking the invoice. Maybe this… Continue reading Home automation: Controlling your heating remotely