Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Chip Model	TTP224
Channel Count	4 Independent Channels
Operating Voltage	2.0V to 5.5V DC
Response Time	Approx. 60ms at VDD=3V
Output Type	Direct Drive / Toggle Mode Selectable
PCB Dimensions	28mm x 22mm
Mounting Hole Size	3mm Diameter
Interface	Standard 2.54mm Pitch Header
Sensitivity Adjustment	Via External Capacitor (Optional)
Application Scope	DIY Electronics, Home Automation, Control Panels

6 reviews

Anonymous

Mar 15, 2026

Rating: 4/5

Great for learning

As a beginner, I found this module very forgiving. It helped me understand capacitive sensing without dealing with complex raw sensor data. The only downside is the silk screen is a bit small to read.

Anonymous

Mar 09, 2026

Rating: 5/5

Stable performance

Been running this module continuously for two weeks in a test rig. No drift or loss of sensitivity observed. The build quality of the PCB looks professional with clean solder joints.

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for my Arduino project

This module worked flawlessly with my Arduino Uno. The sensitivity is great right out of the box, and it detects touch through a thin plastic case easily. Wiring was straightforward using the provided pinout diagram.

Anonymous

Mar 05, 2026

Rating: 5/5

Easy integration with ESP32

Connected this to an ESP32 for a smart home light switch prototype. The voltage range supports 3.3V logic directly without level shifters. Code examples found online made integration a breeze.

Anonymous

Mar 03, 2026

Rating: 5/5

Reliable and compact

I've used these in three different projects now. They are compact enough to fit behind small panels and the response time is very fast. Highly recommend for anyone building custom touch interfaces.

Anonymous

Mar 02, 2026

Rating: 4/5

Good value, minor sensitivity tweak needed

Overall a solid sensor module. I had to add a small capacitor to one channel to reduce false triggers in my noisy environment, but once adjusted, it works perfectly. Great price for four channels.

5 FAQ

Q: Does this come with header pins soldered?

A: No, the module usually ships with unsoldered header pins included in the package to allow for flexible mounting options. You will need to solder them yourself if you want to use a breadboard.

Q: Can this module detect touch through glass or acrylic?

A: Yes, the TTP224 can typically detect touch through non-conductive materials like glass or acrylic up to approximately 3-5mm thick, depending on the material density and sensitivity settings.

Q: What is the maximum current this module can sink or source?

A: The module's output pins are designed for logic signaling. They can typically source/sink around 8mA to 10mA, which is sufficient for driving an LED or a microcontroller input, but not for driving high-power loads directly.

Q: Is the output active high or active low?

A: The output mode can be configured. By default, many modules ship in direct drive mode where the output goes high upon touch, but you can often select toggle mode or adjust polarity via specific pin configurations described in the datasheet.

Q: Can I use this with a 5V Raspberry Pi GPIO?

A: Yes, the module operates within 2.0V to 5.5V. However, ensure your Raspberry Pi GPIO tolerance matches the output voltage. For 5V operation, a logic level converter is recommended to protect the Pi's 3.3V GPIO pins.

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