electronic notes
To increase the reliability of embedded systems - especially ones that are hard to physically access - one can use an embedded watchdog. The watchdog, once activated, will reset the system if it is not fed for a certain time-interval. This guarantees a clean reset in case the system ends up in …
First of all let, me state that the following instructions are specific for the Raspberry Pi 4 and a machine running CentOS 7. The instructions are based on two articles by Jonathan Bennett published on Hackaday: Hack My House: Running Raspberry Pi Without An SD Card and Network Booting The …
As I have mentioned before I use a Raspberry Pi running Rasbian Jessie as a print-server. After I made the switch to LPR I started noticing new problems: some documents just wouldn't print. Printing web-pages from Firefox stopped working alltogether. So what now?
What were the symptoms? Whenever I tried …