I’ve finally finished the CatTrack schematic, hurrah!
Click it to enlarge.
As a reminder, my plan is for the collar to work thus:
Tag: CC1125
One last thing…. The Antenna!
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.
Which RF Transceiver?
I’ve chosen a Microcontroller and GPS module. The last major element that I need to select is the narrow-band RF transceiver. My priorities here are physical size, power consumption and the transmit/receive range.