Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 2.0V to 5.5V DC |
| Output Current | Max 50mA |
| Response Time | Approx. 60ms at VDD=3V, No load |
| Interface Mode | Direct Drive / Open Drain (Selectable) |
| Trigger Mode | Self-Locking or Momentary (Jogging) |
| PCB Dimensions | 16mm x 16mm |
| Mounting Hole Diameter | 2mm |
| Sensitivity Adjustment | Via onboard potentiometer |
| Compatible Substrates | Glass, Plastic, Wood (Non-conductive) |
| Package Contents | 1x TTP223 Module Board |
Anonymous
Mar 25, 2026
Rating: 5/5
Compact and efficient
Small footprint makes it ideal for tight spaces in wearable electronics. Low power consumption is a plus for battery-operated devices.
Anonymous
Mar 21, 2026
Rating: 5/5
Perfect for DIY projects
This module works flawlessly with my Arduino Uno. The sensitivity adjustment pot makes it easy to tune for different panel thicknesses. Great value for the price.
Anonymous
Mar 20, 2026
Rating: 4/5
Good sensor, needs calibration
The sensor is responsive, but you definitely need to spend time adjusting the potentiometer to avoid false triggers. Once set up, it's very reliable.
Anonymous
Mar 20, 2026
Rating: 5/5
Reliable capacitive switch
I bought ten of these for a custom control panel project. All of them worked out of the box. The self-locking mode is particularly useful for power buttons.
Anonymous
Mar 05, 2026
Rating: 5/5
Easy to integrate
Very straightforward to wire up. The documentation online is plentiful, and this specific board follows the standard pinout. Highly recommended for beginners.
Anonymous
Mar 02, 2026
Rating: 4/5
Works well behind glass
Successfully used this behind a 3mm acrylic sheet. It detects touch perfectly. Just ensure your ground connection is solid for best performance.
Q: Is this compatible with 3.3V logic systems like ESP32?
A: Absolutely. The operating voltage range is 2.0V to 5.5V, so it works perfectly with both 3.3V and 5V microcontrollers including ESP32, ESP8266, and Raspberry Pi GPIO.
Q: Does the package include headers for breadboard use?
A: This specific listing includes the bare PCB module only. Pin headers are not included but can be easily soldered on by the user for breadboard compatibility.
Q: Can this module work through a 5mm wooden panel?
A: Yes, the TTP223 can typically detect touch through non-conductive materials like wood, plastic, or glass up to several millimeters thick, provided the sensitivity is adjusted correctly using the onboard potentiometer.
Q: How do I switch between self-locking and jogging modes?
A: The mode is selected by soldering a jumper on the back of the PCB. There are specific pads labeled for 'TOG' (toggle/locking) and 'MOM' (momentary/jogging). Please refer to the pinout diagram in the product manual.
Q: What is the maximum current this output pin can handle directly?
A: The direct drive output current is approximately 50mA. If you need to drive higher loads like relays or bright LEDs, we recommend using a transistor or MOSFET as a switch.
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