Touch and force sensing
1-channel capacitive touch (digital output) — detects a touch through foil, wire or pads on a robot shell or hand.
Engineering inference
Adafruit Industries
Adafruit AT42QT1012 Capacitive Touch (toggle)
Adafruit 1375 standalone toggle capacitive touch breakout: Microchip AT42QT1012, one built-in touch pad (or wire your own), touch-on / touch-off toggle output with LED and an optional auto-off timer, no microcontroller needed, 1.8–5.5 V supply, 20 × 29.35 mm, 2.03 g. A no-code on/off switch for robot projects.
1375Development boardPrice$5.95www.adafruit.com · in stock
Buy at www.adafruit.com Overview
Motor essentials
Facts about the complete product. Unknown values remain open design questions.
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
No-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
3D model & CAD
3D model & CAD files
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
- Envelope (L × W × H)
- 29.35 × 20 × 1.6 mm
- Verification
- generated
- Envelope complete
- No — some heights assumed
thickness=1.6 mm assumed: PCB thickness not printed; 1.6 mm assumed for the CAD envelope only
Sensing & output
Sensing area, force and output
Where it senses, over what force, and what signal it gives.
- Sensing
- capacitive
- Active area shape
- single built-in pad
- Touch channels
- 1
- Output
- digital, toggles on each touch (touch-on / touch-off)
- Interface
- digital
- Weight
- 2.03 g
- Supply voltage
- 1.8–5.5 V
| Pin / wire | Position | Role | Notes |
|---|---|---|---|
| VDD | power in | 1.8–5.5 V supply | |
| GND | ground | ground | |
| OUT | output | active-high touch output (drives the on-board LED) |
| Connector | Type |
|---|---|
| header | 3-pin 0.1″ header (VDD, GND, OUT) |
FSRs are for relative force (touch, squeeze) — not calibrated load measurement.
Specifications
Motor performance
No-load, rated-load and stall figures retain their separate test conditions.
Stall torque and current are not continuous ratings. Check the duty cycle and starting load when choosing the driver and power supply.
Thermal limits by level
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Motor body
AT42QT1012 · sensor
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 29.35 mm
- Width
- 20 mm
- Reported height / thickness
- 1.6 mm
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
Board connectors
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| header3-pin 0.1″ header (VDD, GND, OUT) | 3 | Unknown | — |
Complete structured record
Every available field, including details beyond the summaries. Null means the value has not been established.
Sourcing & files
Supplier offers
US / USD is the target market. Observed price and stock are separate from a delivery quote.
www.adafruit.com
US · USD
$5.95Minimum quantity unknown
- Observed stock
- in stock
- Checked
- Oct 1, 2026, 12:48 PM UTC
- Delivery estimate
- Not quoted
Observed within the last 24 hours. Confirm the current supplier quote.
Visit supplier (opens in a new tab)Delivery depends on quantity, postal code and shipping method. A dispatch statement such as “ship today” is not an arrival estimate.
Design files and references
Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Datasheet (opens in a new tab)
Manufacturer reference
Adafruit AT42QT1012 breakout (Adafruit 1375) — store photo (opens in a new tab)
Unverified reference
inspected: store photo of the sensor
STEP (generated from datasheet drawing) — link unavailable
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Source evidence
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.supply_voltage_max_v, spec.constraints.electrical.supply_voltage_min_v, spec.geometry.cad.assumptions, spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.height_mm, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.geometry.other.weight_g, spec.provides.active_area_shape, spec.provides.channels, spec.provides.features, spec.provides.interface, spec.provides.output, spec.provides.sensing, spec.usage.connectors, spec.usage.pinout, spec.usage.pinout_complete, spec.usage.requirements.other.supply_current_ma
sha256 7a3ce69f36c3fef4601a55bf2c8273f020e4640993bed92cf4de2302d8224075
Supports: offers
FAQ
Adafruit AT42QT1012 Capacitive Touch questions
What voltage powers the Adafruit AT42QT1012 Capacitive Touch?
Supply range 1.8–5.5 V.
How much does the Adafruit AT42QT1012 Capacitive Touch cost?
From $5.95 at www.adafruit.com. Prices are observed unit prices before tax and shipping.
What are the Adafruit AT42QT1012 Capacitive Touch dimensions?
29.35 × 20 × 1.6 mm. A STEP model is available for enclosure fit checks.
Where does this Adafruit AT42QT1012 Capacitive Touch data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Sources
- Adafruit AT42QT1012 Capacitive Touch (toggle) datasheet — Adafruit Industries
- www.adafruit.com listing