IFD:IAC WiSe22/sensors and interface schematics: Difference between revisions

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Clemensw

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 We can hookup our moisture sensor to the circuit above instead of the velostat sandwiched between two electrodes.
 [https://www.youtube.com/watch?v=DT6nZsixP0M Here] is a video showing how to build a moisture sensor. [https://ciat-lonbarde.net/tocante/index.html Ciat Lonbarde's Tocante] instrument might use this simple technique to sense touch.
+By replacing the velostat or moisture sensor with a Light Dependent Resistor (LDR) you can use the same circuit to detect ambient light variations.
 [http://www.falstad.com/circuit/circuitjs.html?ctz=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-dAwN6mN7hN6wNBgf74z6fbCkxVHZx8NmJLK0I5PSBML7k0GQz7wzAozG4wmM96S2nYBmHZBaHgZm7hJh6kWo9MyxgqZWI1jMARkuHa-Hk1Hm5FQfjlzFkP72HSCdhnAwEDZQWr6pAANY6AD8LGoEhsADEILQxrzFRAb7JFCoNCwgA Frequency Detector]
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 [http://www.falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWEBmAHAJmgdgGzoRmACzICcpkORIC1SJNApgLRhgBQAHiM8glj3SpIPMoKwDq6amABqAegDyAYwAuAHQDOAMwBOjAI4BXRgDtlATy0ATRqsZqA9rvYBDceh7CeYHCObeqOBIrEhg8PBQ0KSoWDFYyFioCMiQRHA4UfHkWPio6URgqDgQ4RHsAO4ePkTUzOi5PKSZkJU+fjV1vv7erVX1jay17f7E1K1gpHW1QcxUPOn+8yLargA2moxR8AjsAEo8CGCec3UIpCfL4CCLIJhI91BRu8oLRLPzzEeX49sREMwsNAqJBcmA0KgLul0GAWMc-hxXvVUB86kJZr4njAIpByHj8QTyFlYjk8gUiiUEewAOaCFHtOlBETM9i6UQIH6MnhXMpwNrI1HVU5Qfl8Tm8DlNFpcBaNeG8NDBG7gTwAW0cpkcmlUrgARmtGFp5FoNYbNJoABaOVTsdLIN5Bd6idAiNieV3oAD6qE9kE9nFQqXBnoQvugYE9rE9XrA0Hwvs9x09yDDkHjrTt3OkN1mRGa4HhIhw3oTAaDKdDMAjUZjccrnuLKex6Zl9VIAgCJ3QOBCcWV8PCAGstAB+NqYoYyTLCvpSzpzgIs9zMfPCifzIJgEJb8A45mwCK1OJEBA4OIEdKkcFPXl8l0CdDZ5hOhonJ3URxGVQABy-NIXTortOyDuiKbJAV4owdIuN7wOw1gLmM4DTkhni2KsRhrDamYQU6IEFqBYBYA2RAJpepBhnglYHluVGRhGMbEcgtqQPaAyeIBSFuk8KZUGRuIUfcqbwO2PZ0TWybJm4BELEEj7TEEm7bmEe48Ni8DhDCBCkHwWAkO2aaweUtLcbwnimZiLJsuuMjyjycFVKZ8wWcMrTWfKqFPkhIjdqks7yfOAXPkyLH2scjpyaeMk+X6fF+uR0bQNRESiae8YSS6UnuScSGfN5dwunyBx5cMnGuU86QgKQWLPK2fgdkU-j8A1Ej9p4ACWpi-ja3DPsMrCoACyD9URjoqiAyifqY9i6PItj2E4Li9fgAJFDlFw+H2MgddNjDUroriqM4rZsKM+TgF0g1tSAayONSri6O1qgWqq7XKForiqt+aztdo7WMEtICtQNnjoMNm3VdtICaMo6xmp932-f9uhaAAFEdWhyEoagAJTsIqmQAGIQPaMiRKwICE-oxhmJY7BAA 1V/Oct frequency detector]
+[http://www.falstad.com/circuit/circuitjs.html?cct=$+1+0.0000026041666666666666+188.4969023643409+50+5+43%0A411+-416+-48+-512+-48+0+1+40+5+0+0+0.5+5+0+1%0Ad+-416+-48+-336+-48+2+default%0Ag+-336+0+-336+16+0%0Ar+-336+-48+-336+0+0+1000%0Ar+-336+-48+-208+-48+0+1000%0Ac+-208+-48+-208+16+0+0.00001+0.04855852264853732%0Ag+-208+16+-208+48+0%0Aw+-96+-64+-32+-64+0%0Aa+-176+-64+-96+-64+8+15+-15+1000000+0.04853377042562026+0.04855852264853732+100000%0Aw+-96+-64+-96+-144+0%0Aw+-176+-144+-176+-80+0%0A211+-32+-64+32+-64+0+1+48000+1%0Ar+-240+-144+-176+-144+0+10000%0Ar+-176+-144+-96+-144+0+500000%0Ag+-240+-144+-240+-128+0%0Aw+-176+-48+-208+-48+0%0Ax+-338+-232+-132+-229+4+24+Envelope%5CsFollower%0Ao+0+64+0+4098+2.5+0.00078125+0+2+0+3%0Ao+7+64+0+4099+5+0.00009765625+1+2+7+3%0A Envelope Follower]
+You can use an envelope follower or envelope detector to track the loudness of a signal and use that to control e.g. the loudness of a synthesizer.