MortiSafe timer controlled key safe 2

This is a 2nd design for a time controlled key safe. It differs from my previous design in that it uses specific components which you can order over the web in UK, whereas the previous one was trying to use generic parts.

The required components are:

That's a total of around 80. I'm sure all these parts are available in other countries.

If anyone's interested, I can write up the procedure for building it. It's reasonably straightforward (needs about a dozen connections to be soldered between wires and switches and connectors) - here is the circuit diagram although you need to see the timer datasheet to make sense of it.

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