Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | Youxin Electronics |
| Model Number | TTP223 |
| Operating Voltage | 2.0V - 5.5V DC |
| Output Mode | Toggle (CMOS) |
| Sensitivity Adjustment | Via onboard capacitor pad |
| Response Time | Approx. 60ms |
| PCB Dimensions | 16mm x 16mm |
| Mounting Hole Diameter | 3.0mm |
| Interface Type | 3-Pin Header (VCC, GND, OUT) |
| Application Range | DIY Electronics, Arduino, Raspberry Pi |
Anonymous
Mar 30, 2026
Rating: 5/5
Great replacement for mechanical switches
No more clicking sounds! These capacitive touch sensors are silent and durable. I've installed them in a custom lamp control panel, and they look very modern.
Anonymous
Mar 11, 2026
Rating: 5/5
Reliable and compact
The small form factor makes it perfect for embedding into tight spaces in my robot design. The response time is fast enough for interactive buttons. No issues after weeks of testing.
Anonymous
Mar 08, 2026
Rating: 5/5
Perfect for my Arduino project
These sensors work flawlessly with my Arduino Uno. The sensitivity is great out of the box, and I was able to detect touch through a thin plastic case. Highly recommended for beginners.
Anonymous
Mar 04, 2026
Rating: 4/5
Good value, minor tweaking needed
Bought a pack of ten for a classroom workshop. Most worked immediately, but two required adjusting the sensitivity capacitor slightly. Overall, excellent value for the price.
Anonymous
Mar 04, 2026
Rating: 4/5
Solid performance
Works well with 3.3V and 5V logic levels. I used them to replace mechanical switches on a custom controller. The only downside is that the soldering pads are a bit small for thick wires.
Anonymous
Mar 02, 2026
Rating: 5/5
Easy to use
I am new to electronics, and this module was very easy to wire up. The documentation provided by the seller helped me understand the pinout quickly. Works exactly as described.
Q: How do I adjust the sensitivity if it's too high?
A: You can adjust the sensitivity by adding a small capacitor (e.g., 1pF to 50pF) to the designated 'C' pad on the PCB. A larger capacitance generally reduces sensitivity.
Q: Is the output signal digital or analog?
A: The output is digital. It provides a high or low logic level depending on whether the sensor is touched, making it compatible with standard GPIO pins.
Q: Does this come with header pins pre-soldered?
A: No, the module typically comes without header pins soldered to allow for flexible mounting options. You will need to solder your own headers or wires.
Q: What is the maximum current this module can handle?
A: This is a signal sensor module, not a power switch. It outputs a logic signal to a microcontroller and should not be used to drive high-current loads directly.
Q: Can this module detect touch through glass or acrylic?
A: Yes, the TTP223 can detect touch through non-conductive materials like glass or acrylic, provided the material is not too thick (typically under 5mm works best).
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