Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	2.0V - 5.5V DC
Output Current	Max 100mA (Direct Drive LED)
Response Time	Approx. 60ms (No key), 160ms (On-key)
Sensing Distance	Up to 5mm (Dependent on PCB thickness)
Interface Type	Digital Output (High/Low)
Module Dimensions	16mm x 16mm x 5mm
Mounting Hole Diameter	3.0mm
Compatible IC Models	TTP223, TTP224, TTP226
Application Scope	Touch Control Panels, Home Automation, DIY Electronics
Package Contents	1x Touch Sensor Module, 1x Pin Header Strip

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Great for learning embedded systems

Bought this for a university project. The documentation online is plentiful, and the module itself is robust. It survived several wiring mistakes without burning out.

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for Arduino projects

These sensors work flawlessly with my Arduino Uno. The sensitivity is adjustable via the solder pads, and they respond instantly to touch. Great value for money.

Anonymous

Mar 24, 2026

Rating: 5/5

Excellent replacement parts

Needed specific TTP223 modules for a repair job. These arrived quickly and functioned exactly like the original components. Highly recommended for repairs.

Anonymous

Mar 09, 2026

Rating: 4/5

Good sensitivity, needs calibration

The module works well once you figure out the correct capacitor settings for your specific enclosure. Initially, it was a bit too sensitive, but after tweaking, it's reliable.

Anonymous

Mar 04, 2026

Rating: 4/5

Works through thin plastic

I successfully mounted this behind a 3mm acrylic sheet for a light switch. The detection range is sufficient, though thicker materials might block the signal.

Anonymous

Mar 02, 2026

Rating: 5/5

Compact and reliable

Small form factor makes it easy to hide behind panels. I used these to replace mechanical buttons in a custom keyboard build, and they feel very modern.

5 FAQ

Q: Is there a way to adjust the sensitivity?

A: Yes, there are solder pads on the back of the PCB labeled 'C' and 'A'. Adding a small capacitor to the 'C' pad increases sensitivity, while adding one to the 'A' pad decreases it.

Q: Does this module come with headers pre-soldered?

A: No, the module comes with a separate pin header strip to allow flexibility in mounting orientation. You will need to solder them yourself.

Q: What is the difference between TTP223 and TTP226?

A: The main difference lies in the output mode options. TTP223 is typically momentary, while TTP226 often supports toggle modes depending on the specific configuration pads selected on the PCB.

Q: Can this sensor detect touch through glass?

A: Yes, the capacitive sensor can detect touch through non-conductive materials like glass or plastic, provided the thickness does not exceed the sensing range (typically up to 5mm).

Q: Can I drive a relay directly with this output?

A: It is not recommended to drive high-power relays directly. The output current is limited to roughly 100mA. Please use a transistor or MOSFET driver circuit for higher load applications.

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