There’s been a lot written about the Raspberry Pi, a small single-board computer with I/O pins on the circuit board, and a small price tag (£25 or so). For me, the most exciting aspect of the Raspberry Pi is the fact that it has lots of methods of input and output of digital signals to and from the board.
Lots of people have reported good things about the toner transfer method of making printed circuit boards. Lots of other people have said it’s a waste of time. I have been trying to use this technique to produce decent quality boards, with quite a few successes so far. Continue reading
Some notes on the SmartAlpha module from RF Solutions, though these may have been superseded by a revised firmware that appears to have made it onto the device.
We have Dell R415 and R515 11G servers that have been rebooting sporadically. These restarts are seemingly random, but occur at approximate intervals of 6 weeks, 2 weeks, or 2 days. The messages in the BMC/iDRAC6 system event log seem to be misreporting various hardware problems. The problem appears to have been avoided by disabling the Event Message Buffer using ipmitool, but only time will tell.