Real Time kernels and audio on the Raspberry Pi

A year or two ago I posted about how you could send audio over the internet with Raspberry Pis using the OpenOB project. Since then the OpenOB project has taken off, with lots of contributions from the community and lots of improvement as a result. What hasn’t aged well is the Pi. A firmware update… Continue reading Real Time kernels and audio on the Raspberry Pi

Getting started with XRF modules and LLAP

Months ago I picked up some radio modules – specifically the XRF radio modules from Ciseco. They’re about £10 a pop and are in theory very simple to use. This is… almost true. In the end my modules sat dormant in my component store, and the OpenKontrol gateway I got from them at the same… Continue reading Getting started with XRF modules and LLAP

The ntpi: accurate time with a Raspberry Pi and Venus638FLPx

One of the things I’ve always loved to tinker with is time sources and synchronization. Typically this has been tied to sensible things like the Network Time Protocol and designing and maintaining time distribution systems for broadcast networks. Lately though I’ve been toying with ‘real’ time sources – GPS and MSF broadcasts. This is a… Continue reading The ntpi: accurate time with a Raspberry Pi and Venus638FLPx