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OM11057 Datasheet(PDF) 1 Page - NXP Semiconductors |
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OM11057 Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 2 page Fast, easy evaluation of capacitive sensors Key features ` ` 8-channel`capacitive`sensor`PCF8885 ` ` 2-channel`capacitive`sensor`PCA8886 ` ` LCD/LED`driver`PCF8536 ` ` Cortex-M0`LPC1111`with`8`KB`flash`memory ` ` Standalone`operation ` ` Powered`via`two`AA`batteries`or`USB ` ` Software`modifications`via`LPC-Link ` ` Sounder`for`audible`feedback Applications ` ` Hermetically`sealed`keyboards ` ` Proximity`detection ` ` Switches`in`medical`and`explosive`environments ` ` Vandal-proof`switches ` ` Gaming`devices ` ` Portable`communications ` ` Fixed`and`mobile`entertainment`systems ` ` White`goods ` ` Automotive`(e.g.`passive`keyless`entry) This`board,`equipped`with`an`LCD`driver`and`controlled`by`a`Cortex-M0™`MCU,`demonstrates`the` features`of`two`capacitive`sensor`devices. The`NXP`OM11057`demonstrates`the`features`of`the`PCF8885,` an`8-channel`capacitive`sensor,`the`PCF8886,`a`2-channel` capacitive`proximity`sensor`and`the`PCF8536,`an`LCD/LED` controller`which`can`be`used`to`drive`an`LCD`and`the` accompanying`backlight.`The`board`is`controlled`by`a` low-cost,`32-bit`Cortex-M0`microcontroller`LPC1111.`` An`LPC-Link`debug`probe`is`also`included`with`the`board,` so`designers`can`easily`modify`the`firmware`or`reprogram` the`LPC1111`using`NXP’s`low-cost`LPCXpresso`development` platform. The`sensor`PCF8885`is`configured`to`control`a`total`of`` 20`sensors:`the`slider`(eight`channels),`the`wheel`(eight` channels),`and`four`buttons.`The`device’s`very`high`sensitivity` delivers`reliable`operation,`even`though`it’s`covered`by` plexiglass`(acrylic`glass).`The`proximity`sensor`PCA8886` uses`one`of`its`two`channels`to`detect`whether`a`hand`is` approaching`the`controls.`The`other`channel`can`be`connected` to`an`external`sensor.`The`LCD/LED`driver`PCF8536`controls` both`of`the`board’s`LCDs`using`a`multiplex`rate`of`eight.` NXP capacitive sensor demo board OM11057 |
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