Skip to product information
1 of 1

Capacitive Touch Standalone Toggle Sensor Breakout AT42QT1012

Capacitive Touch Standalone Toggle Sensor Breakout AT42QT1012 - This breakout board is the simplest way to create a project with a single "toggle" capacitive touch sensor. No microcontroller is required here - just power with 1.8 to 5.5VDC and touch the pad to activate the sensor.

This sensor is a toggle output type: touch-on then touch-off. That means that when a capacitive load is detected (e.g. a person touches the sensor-pad area) the red LED will alternate turning off and the output pin will go high or low, respectively. This sensor is good for a project where you want to activate something on the first touch, then deactivate it when touching again, like a switch. You can also solder a wire to the middle pad and create your own capacitive pad if the built-in one isn't suited to your project.

Frequently Asked Questions

What are standalone sensors?

The Standalone Intelligent Sensor (SIS) is a low-cost DIY system that gathers data from several passive wireless sensors and processes it to provide a moment log with relevant data and conclusions about a person's activities at home.

What is a Standalone Toggle Sensor?

An area's motion and movement are detected by a stand-alone motion sensor, as the names suggest. This motion sensor has the ability to detect movement, operate as a switch that is switched On or Off by movement, and control any connected devices. A Bulb or a Hooter can be connected to this motion sensor.

What is toggle used for?

Toggle switches are on/off switches for digital devices. The best purpose for toggle switches is to change the status of system settings and functionality. To allow users to select between two opposed states, toggles may be used in place of two radio buttons or a single checkbox. 

What is the difference between a toggle and a switch?

Since a toggle button and a toggle switch both control states, but not exactly in the same way, we must first differentiate between them: The toggle button symbolizes an activity that modifies the state. Two (or more) fundamentally incompatible states or possibilities that can be switched are represented by a toggle switch. 

What does a capacitive touch sensor do?

A conductive object's presence causes a change in capacitance, a system's capacity to store an electric charge, within its projected field, which is measured using capacitive sensing technology. Normally, such an item is a human finger, but it might also be any conductive object with a different dielectric than air.

If you want to save power, the LED can be disconnected from the output pin (cut the trace between the jumper marked as such). We designed this breakout to have infinite time-out. The chip does support having the sensor time-out, so for example, if something is turned on, it will eventually turn off on its own. If you'd like to use this mode, cut the TIMER jumper and then connect a resistor/capacitor to the TIME pin. Check the datasheet for how to calculate the TIME pin to match your desired timeout.

Comes with a fully assembled board, and a small stick of 0.1" header so you can solder and plug it into a breadboard. For additional 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.


  • Dimensions: 20mm / 0.8" x 29.35mm / 1.15"
  • Weight: 2.03g

Capacitive Touch Standalone Toggle Sensor Breakout AT42QT1012

Capacitive Touch Standalone Toggle Sensor Breakout AT42QT1012

Low stock: 4 left

Product Code


Regular price ₱ 377.00
Regular price Sale price ₱ 377.00
Sale Sold out
View full details

Related Post