This is a multi-part message in MIME format. ------=_NextPart_000_032C_01C73BD8.C126F900 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit > Anyone built anything similar ? Peter, I'm experimenting with the attached. A work-in-progress so values aren't finalised. Why not do what I'm doing and have the PIC control the load and also a time-out to ignore the button ? I had two goals for this circuit - to reduce current (previously it used 10uA when switch was left closed) and to increase niose immunity A problem I had was that one particular unit is installed outside and would be falsely triggered all the time a neighbour was using a very noisy 2-stroke weedeater. He weedeated again a couple of days ago, after changes had been made to the circuit, and the unit ignored it. It even performed its real function whilst being bombarded at close range (< 1m) by spark plug EMF onto the switch wires You could reduce the power consumption down to 60-ish nA by using a kitchen clock module ------=_NextPart_000_032C_01C73BD8.C126F900 Content-Type: image/gif; name="low_Iq_trigger.gif" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="low_Iq_trigger.gif" R0lGODlhMwH9AIAAAAAAAP///ywAAAAAMwH9AEAC/oyPqcvtD6OctNqLs968+w+G4kiW5omm6sq2 7rsC8CHPZG2PeM4C/g8MAlU7ngcnKxovu6QJOXEipLSAMnLtLR3CrvcLDovH5PJ4G8rG0Aw1++2m QJ21ufVuoMYbe25CbzU09bbQR8hjeOg3k2jTqPjyCBno5SJpOal4mYnHmLnJeaIEGkpUQYqBWiqi uqolh+m61CrLV5XXCcihRndXJElLWdfZpjA8iJv8hxJc+3Qa6+yY9yO9SFx4mwrd0mxt4c38jRY+ LkE6qp1UTYnrk23OVh7/gPQOR02PqP9aOs9vTB1AUwON3at3sMS/cwXFNZy0EMvDZxMJBhKIbBUU /mWQNmKrOC7iGmciQfYzV5KVyZWufk05yG4ay5kdaR75c4+doIsuc2qjdsyX0Do5q8VEFjNpQqMX gQLt+VPYoHkpbVoNCTPgVQ1zErbLVUWQzqZhnfpSOmznUbNE7bmlQWWqVoxCM36oujUvQLx6+/r9 Cziw4MGECxs+jPiu3Uh7B/I1/NhhVJJzRVWGixbmzjZic0TmlnhZaHAQR4vu8K4XntRDb62ttxjL kCBsY3+OYjp2bluld3+Md5vjoeDWiLMSAsM4BOW1mvguBqvbc+ZGsrqbDA93xnVwwYLeNdbs6a+0 yYt9rfI57OgnTVPn9+jxe42Ye4OO47HgfH8t/tVfHt1EI84pYwdY+Qnnn26J7bdeblcwyAmEvLGH YFQSojZdglx5lqGG3tU3XiRmjEhiiSaeiJyHTFCmoDx0qSjZNxc2CCNivLwUFHEz1rjFjjzC6CMh zh3D2nVk5fOhQER9WGBdBBpYFkc5rqbLdlE6WSFDOKH3Y5fJdbjaaR4V2OSAUIa5JCD52VHmmV7Z FmWRL97kZZ2MpGhnnnruyWeffv4JaKCCDkpooXoFxyVJb4a0lZlfwufYXzo21iJ9IfYZJIW/ybJR pqh9EQ09nmrXTToPYhMXltdsOlJNvqGy1prLQFWplBza52CdM47a4w2s/poKqMtdqaZdPvI6/gud rU2pmqorPktXlbXu86qo01KEq3sykmiRJmDyuCOy1el3q6u7iTusTObm+hSyYYQ63LfAhpJoCiXC C6CX8eEbGrrZpttevl1egpe/6vY15pnz0ojTdXoQrJjDtpzqEjwFAxbgW0xWomVtYX713QYVH0iM o96ZKZLB3nYsXbVJqrdvy+c+qWHMAffb0r1y9fILitzKzC5/Kqr8qNAeEs3YywgtOit00DHt8syX LscmmsKtCbV/SPOLz49bAx3hdEnJ+0mCJONsKThZg/jQ1zdD2mLFOqxtWdSATmr3n3hLPehtbrcK 88lM6oPu32lLcba4Zwu5lKGk5jx2hI07/v54cdIY3jZwl1NO0ygJLw445yCd+iTo3YpeEeaow716 69j1G56miDr9LDo4uvGP6kTkyJSRqLr2u5VjznblrOe9pFWnvX9EMfBZBlte67rjI3e9ru/J9PSW me5HFlRtCH52ONL4fdRBdVcW4h+/6FaRRDKl/GW6aLb8jWIKbmsagdeMLQjaX68RMACQctYboAEP iMAEKnCBDGygAx8IwQhKcIIUrKAFL4jBDBbHZxzsoAc/CMIQdlBS5bIWpaxiMq5Z7oQzKc/eTMg6 m6QQbCiJlF9eqDn0yahhgfqb3FboO72xcGFla9dKBEhDRl2riEvMQAGnRjrSHCyHMQQa/slShUUi Tu1t5CDbNqAYrTnRDodC8iKpaGWh3/1wjCWMV95gWLSV8U1RIzpdGd9Yowv9Twe+wp0W7UU/EEXv dV3EI/SM1BaHoeUUwqpcscToxjmKDH4Z41lYNqMp2ZWuQuEyoxRZoz6eOEla5INW/kZJu65Jko4+ meIdV7k5QsZoXdqyoSf+hTavMTFo4NplLYHTyNC9kpeEa+Mwf1lFFfbKkEq8JS0FNkRlJuuNRCOj Kom5x1keE5p/PAzdjJnLbkJGQNIsTDaTuCo7wq4MyJQIOm2kr5DZy5Nmk6c2w5lHKQoTn3nJGNsY 5k5BiuaJ/+EnCgfXlaVwLJ3G0+Hz/ia0izhZ6HP3g6SvSLhJ36nCj5Zsoizv4ywwnmdyUrnnVSiq UWW5KaX2/GLxxPeyTqWSjwPTpzpdSqBFtS9VIOtZSc7JRZjeFJ7iqWflhurNhzJzpiYlKvcMytCm JlVpSxWqVCFjkicSFKIB3eeCzMAiQq4xCt/8KE1h+UyAPW+sxazqNeXwza3GEq1y5J9bXTQ0MMk1 aUcj236WlFdqPq4P3ouqXaX2VOQBLy3r4w7zanpXLXU0lOwrKzEBBFaDkLQrHnusLiMLzsNe9o6W JSpdI3lZoEbMaO45impVGjatmZUwo3rtp2a4oP7oEz+zBeJoO6Kz9LXmdiIsbnB//ss63io1oq6E KvZCa9q7QXeqPZwuVgVlzdz2rbnaxS53owszWZ2ymZwiVJm8ojiSQkS90kXkZArX23IlVlfOQ4/i POrM+RIwrPFVl34dtzX4KhBpAk4ggeeKwAPz94ABXrD0kOhgfxY1jgDsgm9ZisrvPlhlhc2oOPWn QV8itL9nDXFdA2jcvZoYvyt2botl++J8xhhIM6ax3Xiq1g+vdouSdSJu5VJiBw2oTYBFn7SIDFgi C49YSUqywtLxFJqFFEP8YxaT6xfE4GVYyzie8hqtjGHszA+TNrWwkIuSjzGrcYZK2TJ5LmmxQE5Y TmlSmoSbtFymDhJ1tr3TeFRcgOOTlgxPgTbna/pc6B1jU2RMpZYTOTOXG/04fEE730oZy6zztfIs VpNYmKuWUjLZ73ZSziKI+WZpJdWFslKOaTKKJd40ird6XH2yEUnc1V+m2rVKSmSTx/exOo/Zc+/T WE9Znb82m1rHhnWxsyntv0QbVdrUrra1r43tbGv7MAUAADs= ------=_NextPart_000_032C_01C73BD8.C126F900 Content-Type: image/gif; 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