I’ve finished laying out the base station PCB, hurrah!
As ever I’ve laid it out using Eagle – this time I’ve managed to keep it to two layers so that’ll save me some money in PCB manufacture costs. Click it to enlarge.
I was a little premature with my previous post. I can’t quite draw the schematic diagram yet – I need to work out the antenna!
Texas Instruments have produced an excellent guide, examining a number of different types of antenna for embedded applications. The table below summarises the pros and cons of a number of different antenna solutions and is taken from that guide.
There are going to be three main elements to the CatTrack design: