This article is a work in progress to create a power-controller for the Raspberry Pi based on a PIC microcontroller and MOSFET. The PIC implements an I2C slave to allow… Read more »
Having been unable to resist buying some old Hornby OO Gauge bits from the second hand cabinet in a model shop, justification came from the educational value it would offer… Read more »
This article describes using an RFM01 or RFM12b FSK RF transceiver with a Raspberry Pi to receive sensor data from a Fine Offset WH1080 or WH1081 (specifically a Maplin N96GY)… Read more »
The gpfsel_list (I maybe should have called it lsgpio) utility displays a list of the currently configured function selections across all available GPIO pins and, for pins configured as GPIO,… Read more »
There’s something exciting about crossing the boundary between the abstract world of software and the physical ‘real world’, and a relay driven from a GPIO pin seemed like a good… Read more »
Having recently received my Raspberry Pi, one of the first things I wanted to do was hook up a real-time clock chip I had lying around (a NXP PCF8563) and… Read more »
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.
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… Read more »
Here’s a little tip for anyone with an Oil Watchman tank guage. If your batteries run out, you don’t need to spend £30 or so replacing it. You can open the tube and replace the four AAA cells that are inside, it’s a simple five minute job.