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Capacitive Touch Breakout - AT42QT1010 (Open hardware)

4 years ago 1495
  • Description
  • Documents
  • BOM
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Description

Description: If you need to add user input without using a button, then a capacitive touch interface might be the answer. The AT42QT1010 SparkFun Capacitive Touch Breakout offers a single capacitive touch button with easy-to-use digital I/O pins.

The AT42QT1010 is a dedicated, single-button capacitive sense chip. The chip handles monitoring a conductive area for touch. As long as a touch (e.g. from a finger) is detected, the AT42QT1010 keeps the output line high. Otherwise, the line is kept low. You just need to provide a power source (1.8V - 5V) and ground for the AT42QT1010 to work. Additionally, a PAD pin is available if you would like to create your own external electrode.

GitHub Sparkfun link:https://www.sparkfun.com/products/12041

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Documents

AT42QT1010_Capacitive_Touch_Breakout SCH

AT42QT1010_Capacitive_Touch_Breakout PCB

BOM

ID Name Designator Footprint Quantity
1 AT42QT1010 U1 SOT23-6 1
2 FRAME-LETTER FRAME1 CREATIVE_COMMONS 1
3 OSHW-LOGO LOGO2 OSHW-LOGO-S 1
4 0.1uF C1 0603-CAP 1
5 10nF C2,C3 0603-CAP 2
6 10k R1 0603-RES 1
7 2.2k R2 0603-RES 1
8 200 R3 0603-RES 1
9 NPN Q1 SOT23 1
10 NC JP7 SJ_2S 1
11 STAND-OFF STANDOFF1,STANDOFF2,STANDOFF3,STANDOFF4 STAND-OFF 4
12 LOGO-SFE LOGO1 SFE-NEW-WEBLOGO 1
13 LOGO-SFE LOGO3 SFE-LOGO-FLAME 1
14 M01 JP1,JP2,JP3,JP4,JP5 1X01 5
15 SMD JP6 1X04-SMD_LONG 1
16 GREEN LED1 LED-1206-BOTTOM 1
17 FIDUCIAL FID1,FID2 FIDUCIAL-1X2 2
18 M01 JP9 PAD-1.5X4.5 1
19 JUMPER-3 JP8 SJ_3_PASTE12 1

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Comments (1)

martin garix (martin) Reply

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