Description
Reviews
| 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 |
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.
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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