Here is the final circuit I will use, the resistor and capacitor values give a time constant of about 0.5 sec – I’m sure many other values would work but I have these ones in my box.
I have added a pull down resistor on the reset line just to make sure it is low unless deliberately raised high. I will build this over the weekend.







[...] his final circuit, the resistor and capacitor values give a time constant of about 0.5 sec and he has added a pull [...]
[...] This post was mentioned on Twitter by Kimberley Nanson, James Taylor, John Crouchley, John Crouchley, Current Cost and others. Current Cost said: Have you seen what @jcrouchley has been up to? #currentcost connected to gas meter… http://bit.ly/6O1cRv [...]