NEW PRODUCT – Standalone 5-Pad Capacitive Touch Sensor Breakout – AT42QT1070. This breakout board is the simplest way to create a project with mutiple capacitive touch sensors. No microcontroller is required here – just power with 1.8 to 5.5VDC and connect up to 5 conductive pads to the 5 left-hand pins.
When a capacitive load is detected (e.g. a person touches one of the conductive contacts) the corresponding LED on the right lights up and the output pin goes low. You can use this to update an existing normal-button project where buttons connect to ground when pressed.
Note that only one contact will be detected at once (this is to protect against having a hand brush against two or more contacts at once.
Comes with a fully assembled board, and a stick of 0.1″ header so you can plug it into a breadboard. For contacts, we suggest using copper foil, then solder a wire that connects from the foil pad to the breakout.
The datasheet has many details on sensitivity, power usage, etc. – note that this board uses the chip in ‘standalone’ mode only, it cannot be used in I2C mode.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — BREAKING NEWS – Raspberry Pi maker Premier Farnell bought by Avnet @Avnet
Wearables — The ultimate glue selection
Electronics — Stay disciplined with ERC
Biohacking — Ava The Fertility Tracking Bracelet
No comments yet.
Sorry, the comment form is closed at this time.