Phil noticed that our LED was not flashing on receipt of data, but rather flashing on the absence of data. Whilst not exactly required, I decided to include an inverter circuit so that the LED would operate as expected. It sounds impressive, but it's a very simple circuit requiring no more than a couple of resistors and an NPN transistor.
This has been tested and it works fine. Whether it's a good idea to build it onto the production board, I'm not so sure. It adds complexity to a circuit that although should be simple, we've had enough problems on the stripboard to prove otherwise.
This will be the last you will hear from me until the 21st September as I'm off on a break. Hopefully Phil will be here to keep you upto date on the latest whilst I'm away. See you in a few weeks!
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