Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	2.0V to 5.5V
Output Current	Max 10mA
Response Time	Approx. 60ms
Interface Type	Digital Output (High/Low)
PCB Dimensions	16mm x 16mm
Mounting Hole Diameter	3mm
Sensitivity Adjustment	Via onboard capacitor pad
Compatible Platforms	Arduino, Raspberry Pi, ESP32
Standby Current	Typically < 4uA
Package Includes	1x TTP223 Module, 1x Header Pin Set

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Solid performance

No complaints about functionality. The only minor issue is that the header pins were not pre-soldered, but that is expected at this price point.

Anonymous

Mar 21, 2026

Rating: 5/5

Easy to use for beginners

I am new to electronics and this was very easy to wire up. The documentation online is plentiful, and the module itself is compact and sturdy.

Anonymous

Mar 21, 2026

Rating: 5/5

Reliable capacitive switch

Used four of these for a custom control panel. They all performed consistently. The low power consumption is a huge plus for battery-operated devices.

Anonymous

Mar 17, 2026

Rating: 4/5

Good but needs calibration

Works well overall. I had to solder a small capacitor to adjust the sensitivity for my specific application, but once tuned, it is very reliable.

Anonymous

Mar 13, 2026

Rating: 5/5

Perfect for DIY projects

This sensor works flawlessly with my Arduino Uno. The response is instant and it detects touch even through a thin plastic case. Great value for the price.

Anonymous

Mar 06, 2026

Rating: 5/5

Great replacement for mechanical buttons

Replaced old mechanical switches in a project with these. No more clicking noise and they feel much more modern. Highly recommended.

5 FAQ

Q: Does this come with jumper wires?

A: The package includes the module and a set of header pins for soldering. Jumper wires are sold separately.

Q: How do I increase the sensitivity?

A: You can increase sensitivity by soldering a larger capacitor (e.g., 50pF) to the designated sensitivity adjustment pad on the PCB.

Q: Is this compatible with 3.3V logic systems?

A: Absolutely. The operating voltage range is 2.0V to 5.5V, making it fully compatible with both 3.3V and 5V microcontrollers.

Q: What is the difference between TOG and ABM pads?

A: The TOG pad selects the output mode (toggle vs. momentary), while the ABM pad adjusts the response time. Please refer to the datasheet for specific soldering instructions.

Q: Can this module detect touch through glass?

A: Yes, the TTP223 can typically detect touch through thin non-conductive materials like glass or plastic, provided the material is not too thick.

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