Seeed Grove-Q Touch Sensor Скачать руководство пользователя страница 5

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Introduction

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.

Содержание Grove-Q Touch Sensor

Страница 1: ...1 Grove Q Touch Sensor Version 1 0 Release date 9 20 2015 Wiki http www seeedstudio com wiki Grove_ _Q_Touch_Sensor Bazaar http www seeedstudio com depot GroveQ Touch Sensor p 1854 html ...

Страница 2: ...2 Document Revision History Revision Date Author Description 1 0 Sep 21 2015 Victor He Create file ...

Страница 3: ...3 Contents Document Revision History 2 1 Introduction 2 2 Specification 3 3 Interface function 4 4 Usage 5 4 1 Hardware Connections 5 5 Software Part 6 6 Resource 9 ...

Страница 5: ...e 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 ...

Страница 6: ...3 2 Specification Operating Voltage 3 5 5V Operating Current 1mA for 3 3V operating voltage Touch Keys 7 Keys key0 key1 key2 are on the Grove PCB bottom side Communicating Protocol I2C I2C Address 0x1B ...

Страница 7: ...tion On board touch key0 On board touch key1 On board touch key2 Touch key0 key6 break out The recommended range for key capacitance Cx is 1 pF 30 pF Larger values of Cx will give reduced sensitivity GND Grove interface ...

Страница 9: ...rduino IDE for example the path could be arduino 1 0 5 libraries Example 1 a Open the example via Arduino Menu File Examples Seeed_QTouch master isTouch b Upload the code Note that you should select the correct board type and COM port c On touching the Lychee the LED would glow as can be seen below ...

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Страница 12: ...9 6 Resource Q Touch Library Schematic pdf Eagle file AT42QT107 datasheet How to detect finger touch ...