Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | Youxin Electronics |
| Model Number | TTP224 |
| Channel Count | 4 Channels |
| Operating Voltage | 2.0V - 5.5V DC |
| Output Type | Digital (High/Low) |
| Response Time | Approx. 60ms |
| Interface | I2C / Direct IO |
| PCB Dimensions | 28mm x 22mm |
| Mounting Type | Through Hole / SMD Compatible |
| Application | Touch Control Panels, DIY Electronics |
Anonymous
Mar 28, 2026
Rating: 4/5
Good quality, clear instructions needed
The build quality is solid and the soldering points are well-defined. However, beginners might struggle slightly without a detailed pinout diagram in the package. Once wired correctly, it works exactly as described.
Anonymous
Mar 22, 2026
Rating: 5/5
Great for learning embedded systems
Bought this for a university project. It was easy to interface with our STM32 board. The low power consumption is a huge plus for battery-operated prototypes.
Anonymous
Mar 21, 2026
Rating: 4/5
Works well but needs calibration
The module works great after some minor calibration. Make sure to keep the wiring short to avoid noise interference. For the price, you really can't beat the functionality of having four channels on one small board.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for my Arduino project
These sensors work flawlessly with my Arduino Uno. The sensitivity is adjustable via the pads on the back, and they respond instantly to touch even through a thin plastic case. Great value for a 4-channel module.
Anonymous
Mar 05, 2026
Rating: 5/5
Reliable and sensitive
I used this to replace mechanical buttons on a custom control panel. The capacitive touch is very reliable and eliminates the wear and tear of physical switches. Highly recommended for modernizing old interfaces.
Anonymous
Mar 02, 2026
Rating: 5/5
Compact and efficient
Small footprint makes it easy to fit into tight spaces within my robot chassis. The digital output simplifies the code significantly compared to reading analog values. Will buy again.
Q: Can this module detect touch through glass or acrylic?
A: Yes, the TTP224 can detect touch through non-conductive materials like glass or acrylic, provided the material is not too thick (typically under 5mm works best).
Q: Is this compatible with 3.3V logic systems like ESP32?
A: Absolutely. The operating voltage range is 2.0V to 5.5V, making it fully compatible with both 3.3V systems (like ESP32, ESP8266) and 5V systems (like Arduino Uno).
Q: Is there a way to adjust the sensitivity of the sensors?
A: Yes, there are solder pads on the PCB that allow you to select different sensitivity levels and output modes (toggle vs. momentary). Please refer to the datasheet for the specific pad configurations.
Q: Does this come with header pins included?
A: The module typically comes with the PCB only. Header pins are not included by default but can be easily soldered on using standard 2.54mm pitch male headers.
Q: What is the maximum current this module can handle?
A: This is a signal sensor module, not a power switch. It outputs a logic signal (High/Low) to a microcontroller. It should not be used to directly drive high-current loads like motors or lamps without a relay or transistor circuit.
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