Capacitive Touch Breakout - AT42QT1011 - Sparkfun USA

AT42QT1011 SparkFun Capacitive Touch Breakout offers a single, momentary capacitive touch button with easy-to-use digital I/O pins. The AT42QT1011 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 AT42QT1011 keeps the output line high. Otherwise, the line is kept low.

Provide a power source (1.8V–5V) and ground for the AT42QT1011 to work. Additionally, a PAD pin is available if you would like to create your own external electrode.Unlike its sibling, the AT42QT1011 does not have an internal time-out, meaning that if you hold your finger to the breakout’s pad for any length of time, it will stay on.

Note: There is an updated version of this product available SEN-3718

Features of Sparkfun Capacitive Touch Breakout - AT42QT1011

• Interface:Digital output, active high
• Operating voltage : 1.8V - 5V.
• Technology:Patented spread-spectrum charge-transfer (direct mode)
• Electrode materials: Etched copper, silver, carbon, Indium Tin Oxide (ITO)

Package includes:

• 1 x Capacitive Touch Breakout - At42qt1011

Development resources:

• Product page
• Schematic
• Eagle Files
• Hookup Guide
• Datasheet (AT42QT1011)