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TTP223 Touch Switch Module
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The TTP223 Touch Key Module is based on a touch-sensing IC (TTP223) capacitive touch switch module. A capacitive touch sensor module based on the dedicated TTP223 touch sensor IC. The module provides a single integrated touch sensing area of 11 x 10.5mm with a sensor range of ~5mm.
An onboard LED will give a visual indication of when the sensor is triggered. When triggered the output of the module will switch from its idle low state to high (default operation). Solder jumpers allow for reconfiguring their mode of operation to be either active low or toggle output.
TTP223 Capacitive Touch Sensor Module is easy to use. The TTP223 is a touchpad detector IC replicating a single tactile button.
The TTP223 is a touchpad detector IC replicating a single tactile button. This touch-detection IC is designed for replacing traditional direct button key with diverse pad size.
check out : TTP223 Touch Switch Module ( Pack of 25)
The TTP223 Touch Sensor Module works using capacitive sensing technology to detect touch without requiring a mechanical button. When a finger touches the sensing area, the capacitance changes, which is detected by the onboard TTP223 IC. The module then generates a digital output signal, changing its default LOW state to HIGH when configured for active-high operation. This output can be connected to a microcontroller such as Arduino or ESP32 to control LEDs, relays and other electronic components.
| Jumper A | Jumper B | Mode Type | Output State | Description |
|---|---|---|---|---|
| 0 (Open) | 0 (Open) | Momentary (No-lock) | Active High | Outputs high TTL level only while touched. |
| 0 (Open) | 1 (Short) | Toggle (Self-lock) | Active High | Toggles high TTL level on each touch. |
| 1 (Short) | 0 (Open) | Momentary (No-lock) | Active Low | Outputs low TTL level only while touched. |
| 1 (Short) | 1 (Short) | Toggle (Self-lock) | Active Low | Toggles low TTL level on each touch. |
Pinout Of TTP223 Touch Switch Module
| Operating Voltage | 2.5 ~ 5(VDC) |
| Response time max | 60mS |
| Re-calibration period | 4.0 seconds |
| Dimensions | 1.4 x 1 x 2cms |
| Weight | 5 grams |
The TTP223 is a touchpad detector integrated circuit that emulates a single tactile button. The TTP223 is a touchpad detector integrated circuit that emulates a single tactile button. This touch detection IC is intended to replace traditional direct button keys with a variety of pad sizes.
The module has a single integrated touch sensing area measuring 11 x 10.5mm and a sensor range of 5mm. When the sensor is triggered, an onboard LED will provide a visual indication. When triggered, the module's output will transition from low to high (default operation). Solder jumpers allow you to change the mode of operation from active low to toggle output. The TTP223 is a touchpad detector integrated circuit that emulates a single tactile button. This touch detection IC is intended to replace traditional direct button keys with a variety of pad sizes.
The switch operates based on body capacitance, a property of the human body that provides it with excellent electrical properties. To detect changes in capacitance, the switch continuously charges and discharges its metal exterior. When a person touches it, their body capacitance increases, triggering the switch.
The TTP223 touch sensor module operates on a wide voltage range of 2V to 5.5V DC, making it fully compatible with both 3.3V and 5V Arduino and microcontroller systems.
Yes, this touch switch module for Arduino is plug-and-play. Simply connect VCC to 5V/3.3V, GND to ground, and the SIG (signal) pin to any digital input pin on your Arduino board.
You can change the mode by soldering the onboard A and B jumpers. For default momentary (no-lock) active high, leave both A and B open (00). For toggle (self-lock) active high, short pad B (01). Refer to the Jumper Configuration table above for all combinations.
No, the TTP223 IC features automatic calibration. After power-on, there is a ~0.5-second stable period where the keypad should not be touched. It then auto-calibrates and re-calibrates every 4 seconds if untouched.
The TTP223 module works from 2V to 5.5V DC, so it runs directly from 3.3V boards like ESP32 or 5V boards like Arduino UNO. Current draw is only a few microamps when idle.
The TTP223 Touch Sensor Module operates with an input voltage ranging from 2V to 5.5V DC, making it suitable for compatible low-voltage electronic projects and microcontroller applications. Always verify the supply voltage requirements of the specific module before connecting it.
I bought 3 of these.Very good quality and can be configured with arduino easily,I soldered male pin to it for easy handling,great product and works very well
The adjustable sensitivity allows fine-tuning for different applications. It works well even through thin insulating layers, providing flexibility for various project requirements.
The module feels sturdy and well-made. The touch sensor area is sensitive and durable, suitable for repeated use in various applications without degradation in performance over time.
This touch switch works well in different environments, including indoors and sheltered outdoor setups. Its adjustable sensitivity is a useful feature that allows customization for various use cases.
The sensor reacts within milliseconds to touch, providing a smooth user experience. Its ideal for interactive projects requiring quick input and enhances the overall responsiveness of my systems.
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