Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Brand	YFRobot
Model Number	TTP223
Operating Voltage	2.0V - 5.5V
Output Current	4mA (Low), 8mA (High)
Response Time	Approx. 60ms
Interface Type	Digital Output
PCB Dimensions	16mm x 16mm
Mounting Hole Diameter	3mm
Package Includes	1x TTP223 Module, 1x Header Pin Set
Application	Touch Control Panels, DIY Electronics

6 reviews

Anonymous

Mar 26, 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 helpful, and the module itself is robust. Highly recommended for learning.

Anonymous

Mar 26, 2026

Rating: 5/5

Exceeded expectations

Very sensitive and responsive. I used it to replace a mechanical button on a custom remote, and it feels much more modern. Shipping was fast too.

Anonymous

Mar 24, 2026

Rating: 5/5

Reliable and consistent

Bought ten of these for a classroom kit. All of them worked out of the box without any issues. The touch detection is consistent even with different materials covering the sensor.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for Arduino projects

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

Anonymous

Mar 05, 2026

Rating: 4/5

Great sensor, watch the voltage

Works great at 3.3V and 5V. Just make sure you don't exceed the max voltage rating. The output is clean and easy to read with a microcontroller.

Anonymous

Mar 02, 2026

Rating: 4/5

Good quality, small size

The module is very compact and fits well in tight spaces. It took a little trial and error to get the sensitivity right for my specific project casing, but overall a solid product.

5 FAQ

Q: How do I change the sensitivity of the touch sensor?

A: There are solder pads on the back of the PCB labeled 'A' and 'B'. Shorting specific pads changes the capacitance threshold, allowing you to adjust sensitivity. Please refer to the datasheet for the configuration table.

Q: What is the maximum thickness of material that can cover the sensor and still work?

A: It typically works through non-conductive materials like plastic or glass up to about 5-10mm thick, though this varies based on the material type and sensitivity settings.

Q: Is the output latching or momentary by default?

A: The default configuration is usually momentary (output goes high only while touched), but this can be changed to latching mode by modifying the solder jumpers on the board.

Q: Does this come with header pins soldered?

A: No, the module comes with a separate strip of header pins in the package so you can choose to solder them yourself or use jumper wires directly depending on your needs.

Q: Can this module work directly with a 3.3V Raspberry Pi GPIO?

A: Yes, the TTP223 operates between 2.0V and 5.5V, so it is fully compatible with 3.3V logic levels used by the Raspberry Pi.

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

3-Wire/4-Wire Flame Sensor Module, Fire Source Detection with IR Receiver, Flame Detection and Alarm

$1.08

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

HX711 Pressure Sensor Module Electronic Scale Bracket Weighing DIY Scale Pan Tray Set 5/10/40kg200

$3.28

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

DHT22 Single-Bus Digital Temperature & Humidity Sensor AM2302 Module Electronic Building Blocks

$10.42

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

GY-30 302 Digital Light Intensity Illuminance Sensor BH1750FVI Module Light Sensor Ball

$7.41

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Metal Detector Module Non-Contact Metal Induction Sensor Detection Module Metal Detector

$8.70

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

E18-D80NK Infrared Obstacle Avoidance Sensor Proximity Switch Smart Robot Car 10-80cm

$6.30

Digital 38KHz Infrared Receiver/Transmitter Head Sensor Module for Electronic Building Blocks Robots, Infrared Communication Remote Control

$2.80

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Soil Moisture Sensor Probe Soil Moisture Meter Detection Module Sensor Separate Probe

$2.39