A
Anonymous
Mar 31, 2026
Rating: 5/5
Fast response time
Very quick detection. Great for interactive installations and prototypes.
Description
TTP223 Touch Sensor Key Module, Self-Latching/Momentary Capacitive Switch for Single-Channel Modification
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 2.0V - 5.5V DC |
| Operating Current | 4mA (Typical) |
| Output Format | Digital Switching (0 or 1) |
| Sensor Type | Capacitive Touch |
| Response Time | Max 60ms |
| Module Dimensions | 11mm x 15mm |
| Mounting Hole Size | 3mm Diameter |
| Working Temperature | -40°C to +85°C |
| Interface Type | 3-Pin Header (VCC, GND, I/O) |
| Package Weight | 2 grams per unit |
5 reviews
A
Anonymous
Feb 21, 2026
Rating: 5/5
Reliable switch replacement
Used these to replace mechanical buttons. No wear and tear issues so far.
A
Anonymous
Jan 25, 2026
Rating: 3/5
Needed calibration
Had some false triggers initially. Added a capacitor to stabilize the signal.
A
Anonymous
Jan 25, 2026
Rating: 4/5
Good but sensitive
Does the job well. Had to adjust sensitivity for my specific enclosure material.
A
Anonymous
Jan 24, 2026
Rating: 5/5
Great for DIY projects
Works perfectly with my Arduino Uno. Very sensitive and easy to integrate.
5 FAQ
Q: How do I switch between toggle and momentary mode?
A: There is a solder pad on the back of the module to select the output mode. Please refer to the datasheet.
Q: What is the maximum cable length for the touch pad?
A: We recommend keeping the connection short, under 10cm, to maintain sensitivity and reduce noise.
Q: Do I need a special library?
A: No special library is needed. You can read the output pin as a standard digital input.
Q: Can it detect touch through glass?
A: Yes, capacitive touch works through non-conductive materials like glass or plastic.
Q: Is this compatible with 3.3V logic?
A: Yes, the module supports 2.0V to 5.5V, so 3.3V systems work fine.
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