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Grove - Q Touch Sensor

3 years ago 694
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Description

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DESCRIPTION

The Q Touch Sensor is a high sensitivity and high noise immunity touch input device.It is based on Atmel AT42QT1070. The AT42QT1070 modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise, and to suppress RF emissions. The QT1070 uses a dual-pulse method of acquisition. This provides greater noise immunity and eliminates the need for external sampling capacitors, allowing touch sensing using a single pin.

Specification Operating Voltage: 3 ~ 5.5V Operating Current @3.3V: 1mA Touch Keys: 7 Keys ; key0 ,key1 ,key2 are on the Grove PCB bottom side Communicating Protocol: I2C I2C Address: 0x1B

Resource Q Touch Library Schematic pdf Eagle file AT42QT107 datasheet How to detect finger touch

Documents Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to ourforum.

For more detail, please visit: http://www.seeedstudio.com/item_detail.html?p_id=1854

Documents

Grove - Q Touch Sensor v1.0

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted
1 AT42QT1070-SSU U1 SOIC14 1
2 1uF C1,C2 C0603 2
3 100nF C3 C0603 1
4 10k R3,R5,R4,R6,R7,R8,R9,R10,R11,R12 R0603 10
5 SMD-GROVE J1 4P-SMD-2.0 1
6 DNP R2 R0603 1
7 0R R1 R0603 1
8 NO K0,K1,K2,K3,K4,K5,K6,GND1,GND2 1P-6535MIL 9
9 NO VCC,GND,SDA,SCL TP_4545 4
10 NO P1,P2,P3 1P-D6MM 3

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