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 (CMOS)
Sensing Distance	Up to 5mm (depends on PCB thickness)
Power Consumption	Low standby current (< 3uA)
Module Dimensions	16mm x 14mm x 5mm
Mounting Hole Diameter	2mm
Compatible Platforms	Arduino, Raspberry Pi, ESP8266, STM32
Package Includes	1x TTP223 Sensor Module

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Reliable capacitive switch

Used this to replace a mechanical button in a custom enclosure. It detects touch through a thin plastic layer perfectly. Very happy with the purchase.

Anonymous

Mar 27, 2026

Rating: 5/5

Compact and efficient

Small footprint makes it ideal for tight spaces in my robot design. The low power consumption is a huge plus for battery-operated devices.

Anonymous

Mar 25, 2026

Rating: 3/5

Sensitive to noise

Works as described, but I had to add a capacitor to filter out some electrical noise in my specific circuit environment. Might be tricky for absolute beginners.

Anonymous

Mar 23, 2026

Rating: 4/5

Good but needs calibration

The sensor works well once you understand how to set the self-locking vs momentary mode. Had to read the datasheet carefully, but performance is solid after setup.

Anonymous

Mar 07, 2026

Rating: 5/5

Great for learning electronics

Bought a pack for my university project. Easy to wire up and the documentation online is plentiful. No issues with false triggers so far.

Anonymous

Mar 03, 2026

Rating: 5/5

Perfect for DIY Projects

This module works flawlessly with my Arduino Uno. The sensitivity is adjustable via the solder pads, and it responds instantly to touch. Great value for the price.

5 FAQ

Q: Is this compatible with 3.3V logic systems like ESP32?

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

Q: How do I switch between self-locking and momentary modes?

A: You need to solder or desolder specific test points on the back of the module labeled 'A' and 'B'. Please refer to the included pinout diagram for details.

Q: Can this module detect touch through glass?

A: Yes, it can detect touch through non-conductive materials like glass or plastic, provided the material is not too thick (typically under 5mm).

Q: What is the maximum current this output pin can source?

A: The direct output current is limited. It is recommended to use the module to drive a transistor or relay if you need to switch higher loads, as the max direct current is around 10mA.

Q: Does the package include connecting wires?

A: No, the package includes only the sensor module. You will need to solder your own header pins or wires for connection.

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