--_003_97C12ADEB15C4C48B0AA8F496EDE473Fivp3ghz_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable > something that will run on batteries for several weeks or months The attached isn't too bad for consumption. ISTR it uses about 50uA, and detection is pretty reliable. You could add a comparator, either a PIC's or discrete, to make it more discriminating. A small solar panel will be enough to keep the battery topped up, or even an ex-PC fan as a generator Joe * * ********** Quality PIC programmers http://www.embedinc.com/products/index.htm= --_003_97C12ADEB15C4C48B0AA8F496EDE473Fivp3ghz_ Content-Type: image/gif; name="lp_pir.gif" Content-Description: lp_pir.gif Content-Disposition: attachment; filename="lp_pir.gif"; size=1774; creation-date="Mon, 06 Sep 2010 16:21:56 GMT"; modification-date="Mon, 06 Sep 2010 16:21:56 GMT" Content-Transfer-Encoding: base64 R0lGODlhTQFwAIAAAAAAAP///ywAAAAATQFwAAAC/oyPqcvtD6OctNqLs968+w+G4kiW5omm6sq2 7gvH8nwBi03n+s73dYA72IK+orEDSCqXzKbzCY1Kp9SqFSrMGoLXrvcLDouvLOIxpFwNE2tTevIG mdHJs2Ju9+Ddt9Te8acRiJTHVigyeCiReDfCKKi4FfnxOMlQqYV2gpnDaXnph/DmmeFJCnEKN5n6 mVlSJynJWmHquLnaujGLCpTZtstLa8sXCWxp/MCV1XYrjNisiIwLrQwbSiHtOhydy5HdGNvLjIL5 3UvM3V1K7iuuwmluLjqtbiFvKASLc68dEQ99iN87fUvOzfs0qiAeUn/i9Hn4il4rZVrMCIwY7tyc /kpRDhpks0fgRU31Mu4LNxKdRpNylrkMuSmlnpIoXXpE2G4jJZsGYeopuOXJEZkAuSyc6NEaPm88 KYJrme+pD6IYWR6VSGTczXWy2kHc2e9jD6rbrEoNuNTd2RtYcgYNK5bp1oxj1TFh+ZGsN6BZ6da6 ZK2O07SE5sbdoXdG4hcMy8o1vDgYTX+TJTsjOZMwXR6RYXQu8+MZNqVzrxb5zLhyMnuOV28GtRax 6kWzG/zFfNm1Ztm1dfc27Bss66hf4Xb6DQj57uCZc4vT+dShYuWwqR9mXhhb9L7gBstA7QL8Ne2i VZ3V99B7DIujgABdX9zy0PjY65d5f1g6StLf/peu4Z6aRdexJR4oAnLEHyAJHgdYd8a1IGBXAJLQ UU37jdEWfe7pV2FPvmAIYohVJMOdep7595x+5SV3IImNsYUdI1ppdceCON1VYywmpiZKeyexQ1ls QsrXlYdhPWJacpMhaJR4ETYFpErkGfKjkUMKN91jixS4VYuv4UYhBtBVueNF4AHDEJdiefkllg7O g2N1zm0oWEW22YbeQSo+CJqWtBSoZkP7GAUcn3fCNmibPj0X1Y4DQmiPUrPYCGldfST6Fp+nNNSo onK616mnDJpnpSAZviLUqFRKWOqnpDYHEnr/BRXImVw96k9iNlL6TnqsOmqoq7pUN+usotKQ/mah qOgqY2QLKeROlUoO56ZbxRpnq5jB5sgYPLoq+aO0wtIGVXQrqXWdk7cCSxyPPXK7LZj4hNtmvUSy Iii9Gi0I6GVODcIrQO0ObG9r1c6Jb1U6mCIpnc9mCS/BBU/7arm3OqytwRBD8lrA44EUcbwaUmyq yIcqS6SY7J4ImBXaePwxyDJfiWd7cBmTp595oYwrHOLyNnJse7obMqhB+zYhz1v2XLFUieBMI9A0 d/kzyw3OPLWcSZtcs8VfPf2TmoVyNHBW0NbYJK2BpSzxrtml+5O8aYGNhNjLkc0fdHFV4wqh9hn9 7ri5PYtmNgCjPPRohSRJoqve1apnz7Vu/pQvhj2KeGrdUlyO+eZRbuiXkGiaq+zjbGca+NG0nsx0 yX1OHHdMOfmN7bqk1/7y6YBLvC3kXP9ZKex13/Iv4A2zrvhmpn899eRF906xSDDDKlPizfFtLK6N qce9naXpnjenQWote/VKxy2Steg+un0/TQZGkM1KC/p86+yfX0rVZVWv//Uvrd+qv6xMDXiqH9kW NsBcrC1MNdFX5PCXD/mpKnW8g4cR7KYxLdmsakNogu2kRkHUQVB4waNOoEioGy49DGsobF1I8JMZ DIIFNQmcE7IuRq5l/c1UMqTE9BTGwLF4i1qrIdMIfdbDsG0MiJxpVmgoY8QWbumHE7Fe/swyiMAC 4hBRFrJfxqxDQ4FdMFXDclGddPQ55YRRSnn4BpJ01L+D9WaNTLQD3e4ivhT+4nNxAp3akkLFPsYB P2lbTgmxeJrGPTBrN+ybhSjXxfGda5LEWd4SV7Q4Fs0LL228CY10EsUcAnBvk3xSf9hoR0265XdW c9gnB9mTQOIRbXxbnSFfF0S0cPFDRzylWe7kwHLASZWhlCImj5nKluVsfUl0JE8udTYv9gVyswxd I+t4BrrtzJTZ9GQDnVnDnXloMMX0IjblOJ8ULtKc8ImgpOD3JCvG6p2F/JDefJnLTHotnWCcIDK7 uc8LWseYcgsoQNFpqX5eM5+dNOhUk5r5tnaeU6A+TKI863FRVPpwFZ3rqEc/CtKQinSkThioSU/a DSqidKUslWhLXwrThcV0pjRtZU1vilNE5nSnPG1aT38K1B0GdahAhShRjwpCpCq1p0ZdqlPD89So 5rSpUq3qRK2K1dl4Lqtc7apXv3qfPoJ1rGQtq1n/RNWzqnWtbG2rW98K17jKda50ratdfVAAAAA7 --_003_97C12ADEB15C4C48B0AA8F496EDE473Fivp3ghz_ Content-Type: text/plain; name="ATT00001.txt" Content-Description: ATT00001.txt Content-Disposition: attachment; filename="ATT00001.txt"; size=208; creation-date="Mon, 06 Sep 2010 16:21:56 GMT"; modification-date="Mon, 06 Sep 2010 16:21:56 GMT" Content-Transfer-Encoding: base64 LS0gDQpodHRwOi8vd3d3LnBpY2xpc3QuY29tIFBJQy9TWCBGQVEgJiBsaXN0IGFyY2hpdmUNClZp ZXcvY2hhbmdlIHlvdXIgbWVtYmVyc2hpcCBvcHRpb25zIGF0DQpodHRwOi8vbWFpbG1hbi5taXQu ZWR1L21haWxtYW4vbGlzdGluZm8vcGljbGlzdA0K --_003_97C12ADEB15C4C48B0AA8F496EDE473Fivp3ghz_-- .