Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 2.0V - 5.5V |
| Output Current | Max 8mA (Low), Max 4mA (High) |
| Response Time | Approx. 60ms at VDD=3V, No load |
| Interface Type | Digital Output (CMOS) |
| Operating Mode | Toggle (Self-Locking) or Momentary (Jog) |
| Sensitivity Adjustment | Via external capacitor (C1) |
| PCB Dimensions | 16mm x 16mm |
| Mounting Hole Diameter | 3.0mm |
| Package Includes | 1x TTP223 Module, 1x Header Pin Set |
| Application Scope | Touch lamps, control panels, DIY electronics |
Anonymous
Mar 27, 2026
Rating: 4/5
Solid performance
No issues with stability. It handles minor voltage fluctuations well. Only giving 4 stars because the included headers were slightly bent, but that's minor.
Anonymous
Mar 22, 2026
Rating: 5/5
Compact and reliable
The size is perfect for fitting into small enclosures. I used four of these to build a custom keypad, and they all respond instantly. Highly recommended.
Anonymous
Mar 19, 2026
Rating: 5/5
Perfect for Arduino projects
This module works flawlessly with my Arduino Uno. The sensitivity is adjustable, and the toggle mode is great for making a touch lamp. Very easy to wire up.
Anonymous
Mar 13, 2026
Rating: 5/5
Great replacement part
Bought this to replace a faulty sensor in an old device. The pinout is standard, and it dropped right in. The self-locking feature works exactly as described.
Anonymous
Mar 10, 2026
Rating: 4/5
Good value, needs calibration
Works well once you figure out the right capacitor value for your specific setup. Out of the box, it was a bit too sensitive for thick acrylic, but adding a small cap fixed it.
Anonymous
Mar 09, 2026
Rating: 5/5
Beginner friendly
As someone new to electronics, I found this very easy to use. Plenty of tutorials online show how to connect it. It lit up my LED on the first try!
Q: What is the maximum current this output can drive directly?
A: The direct output current is limited (approx. 4-8mA). It is sufficient to drive an indicator LED with a resistor, but for driving relays or motors, you should use a transistor or MOSFET as a switch.
Q: Is there a delay after power-on before it becomes active?
A: Yes, there is a stabilization time of approximately 0.2 seconds after power-up during which the sensor calibrates itself. Touch inputs during this brief period may not be registered.
Q: Does this come with soldered header pins?
A: The module usually comes with a separate bag of header pins that you need to solder yourself, allowing you to choose between straight or right-angle headers based on your project needs.
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, typically up to 5-10mm thickness depending on the material and sensitivity settings.
Q: How do I switch between Toggle and Momentary mode?
A: The mode is selected by the state of the AHLB pin. Connecting AHLB to VSS enables Toggle mode, while connecting it to VDD enables Momentary mode. Please refer to the datasheet for the specific pin layout on this board.
Metal Garden Bed - Large Size Vegetable Planter for Balcony and Home Gardening
$1,033.00
Custom Travertine Stone Signage with Natural Marble 3D Lettering and Spherical Characters for Cafes, Clothing Stores, and Studios
$170.00
CANDLE.LAB | Realistic Cookie Series DIY Aromatherapy Plaster Candle Diffuser Handmade Silicone Mold
$12.00
Zhao Mengfu Calligraphy Copybook - Running Script 'Qingyun Zhi', Red-Traced Practice Paper for Beginners in Calligraphy
$15.80
Aesthetic Street Scene Watercolor Line Art for Coloring, 16K Landscape Watercolor Coloring Book, Painting Book, Cotton Pulp Watercolor Album
$15.80
Warehouse Nitrogen Sealing Generator - High-Purity Food-Grade PSA Skid-Mounted Container Equipment
$959.00
Ransheng UV Resin Gel, UV Crystal Glue for Gemstones, Ear Cuff Sealing, Dried Flower Molds, DIY Quick-Dry UV Epoxy
$44.00
Dairy Processing Production Line, Pasteurized Milk Equipment, Low-Temperature Sterilization and Fermentation Machine for Cow and Camel Milk
$8,203.00
Blue Lint-Free Wiping Paper - Industrial Large Roll Oil-Absorbent Shop Towels
$62.00
Green-Red AB Glue 5-Minute Fast-Drying Acrylate AB Glue for Glass Ceramic Metal Structural Adhesive Quick Set
$18.13
![Northern Wei Dynasty Inscriptions: Twenty Pieces from Longmen [Rubbing] - Original Size Wei Bei Calligraphy Copybook from Luoyang Longmen Grottoes](https://www.gosteppe.com/cache/small/product/270189/legacy-main-0c626807b3c375d4d5d6a89b.webp)
Northern Wei Dynasty Inscriptions: Twenty Pieces from Longmen [Rubbing] - Original Size Wei Bei Calligraphy Copybook from Luoyang Longmen Grottoes
$40.30
Ru Kiln Celadon Ceramic Brush Washer Set - Large, Medium, and Small Ink Dishes for Chinese Calligraphy and Painting Supplies
$88.80
Multi-Layer Over-Toilet Storage Rack for Bathroom, Laundry Room, and Balcony - Floor Standing Organizer
$44.96
Wrought Iron Solid Stainless Steel Letters – Minimalist Space Signage, Custom Metal Advertising Letters for Storefronts & Feature Walls
$10.00
Shimoyama 304 Stainless Steel Telescopic Rod - Kitchen Sink Cutting Board Support Rack for Dish Drying and Cloth Hanging
$74.80
Modified Wheel Lug Nuts Forged Steel High Strength for Lafesta Regal CT4 Civic Accord Crown Mazda3
$209.00
Milk Separator Machine - Electric Cream Skimmer and Butter Churn for Home and Commercial Use (Cow and Goat Milk)
$946.00
Three-Phase Auto-Reclosing Leakage Circuit Breaker - Smart Phase Loss, Undervoltage, Overload Protection with 485 Communication for PV Grid Connection
$693.20
Multi-Function Vegetable Cutter Commercial Electric for Cafeterias Fully Automatic Chili Scallion Chopper Imitation Hand-Cut Leek Machine
$1,600.00
Zhengtong ZT30 Fog Cannon - Micron-Level Humidification & Cooling Spray System for Steel Mills
$6,000.00
100Pcs Custom Clothing Hang Tags Personalized Plastic Securi
$125.94
Wall-Mounted Bathroom Storage Shelf, No-Drill Organizer for Sink, Shower, and Toilet Area
$5.76
Thickened 5mm Wool Felt Mat for Calligraphy Practice - Premium Writing Pad for Students and Beginners, Part of Four Treasures of the Study Set
$2.80
Multi-Function Car Tire Stone Removal Tool with Hook for Picking Out Rocks
$4.06
Label Stripping Machine – Semi-Automatic Unit for Beer, Baijiu, and Glass Bottle Label Removal; Custom Manufacturing Available
$19,980.00
High-Strength Manganese Steel Lifting Chain 6*18mm G80 Wear-Resistant Towing Chain
$84.34
Touchmark Acrylic Markers for Elementary Art, Washable Watercolor Pens for Kids' Drawing and Painting
$10.80
Official Flagship Store Steel Tongue Drum, C Key, 6-inch, 11 Notes, Carbon Steel Performance Grade Instrument for Kids and Students
$41.10
Outdoor Waterproof Backpack Camouflage Dry Bag with Wet/Dry Separation for Swimming, Rafting, and Trekking
$8.42
![[Save $50 on Order] Bundle: 5 Notebooks + 2 Pens + 20 Refills + 2 Grip Correctors](https://www.gosteppe.com/cache/small/product/270170/legacy-main-59be8c850af1ec303ad4901b.webp)
[Save $50 on Order] Bundle: 5 Notebooks + 2 Pens + 20 Refills + 2 Grip Correctors
$39.90
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
