Accelerometers

Thanks for the comments. I've already got an ADXL345 connected, but I guess its a bit chicken and egg - without knowing what the peaks and background levels are it can be difficult to know what thresholds to set for the interrupts and filters.

I'll carry on having a look through the datasheets, (and do it in a more methodical way) keeping my fingers crossed.

I'm hoping to avoid the need to put together more circuitry, I'm more of a programmer than electronics person.