Digital Sensor TTP223B Module Capacitive Touch Switch
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
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Digital Sensor TTP223B Module Capacitive Touch Switch

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  • Product SKU: KG175
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Highlights
  • Original, High Quality
  • KitsGuru Warranty
  • VCC: 2.0V, 3V, 5.5V.
  • VOH: 0.8VCC.
  • VOL: 0.3VCC.
  • Touch Response: 60 ms.
  • Low Power Response: 220 ms.
  • Replaces traditional button touch.
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Specification

Description

Digital Sensor TTP223B Module Capacitive Touch Switch

The Digital Sensor TTP223B Module Capacitive Touch Switch is based on a touch-sensing IC (TTP223B) capacitive touch switch module. Allows you to remove the worry of conventional push-type keys.

Digital Capacitive Touch Switch Module is based on TTP223B. Normally, it outputs low and keeps at low power state. When a touch is sensed on the circular marked region, it outputs high and switches to the quick response state. When not being touched for 12 seconds, it switches to low power state again.

If the module is mounted in the surfaces of non-metallic materials such as plastic, glass, acrylic, you can make the keys hidden in the walls and desks.

In addition to the thin paper ( non-metallic ) covering the surface of the module, as long as the correct location of the touch, you can make hidden in the walls, desktops and other parts of buttons.

Touch Sensor Interface :

1. Control Interface: A total of three pins (GND, VCC, SIG), GND to the ground, VCC is the power supply, SIG digital signal output pin

2. Power Indicator: Green LED, power on the right that is shiny

3. Touch area: Similar to a fingerprint icon inside the area, you can touch the trigger finger.

4. Positioning holes: 4 M2 screws positioning hole diameter is 2.2mm, the positioning of the module is easy to install, to achieve inter-module combination.

Technical Details

  • Item Type: Electronic Switch.
  • Model Type: Touch Switch.
  • Operating Voltage: 2 to 5.5 VDC.
  • Response Time: 220 ms.
  • Length: 24 mm.
  • Width: 24 mm.
  • Height: 2 mm.
  • Weight: 1 g.

Features

  • Low power consumption.
  • Power supply range: 2 ~ 5.5V DC.
  • Can replace traditional push-button switches.
  • Four M2 screw positioning holes for easy installation.
  • Output Pin Sink Current: 8 mA (@ VCC = 3V, VOL = 0.6V).
  • Output Pin Pull-up Current: 4 mA (@ VCC = 3V, VOH = 2.4V).

Applications :

  • Touch-Based Control: Replaces mechanical buttons in devices for touch control.
  • Home Automation: Used in smart home systems to control lights, fans, and appliances.
  • DIY Projects: Ideal for hobbyists and electronics enthusiasts creating touch-sensitive devices.
  • Touch-Activated Devices: Used in products that need a simple touch interface, like lamps or fans.
  • Security Systems: Integrates in security systems for touch-based activation or deactivation.
  • Wearable Devices: Incorporates touch sensing for compact, user-friendly wearable tech.
  • Consumer Electronics: Powers touch-sensitive features in remote controls, toys, and other gadgets.
  • Mobile Devices: Can be used in mobile accessories and peripherals requiring touch-sensitive controls.

Integration with Arduino


Sample Code


Integration with Raspberry Pi


Sample Code

Physical Attributes

  • Length: 24 mm.
  • Width: 24 mm.
  • Height: 2 mm.
  • Weight: 1 g.

Package Includes

  • 1 x Digital Sensor TTP223B Module Capacitive Touch Switch

Customer Reviews

Based on 10 reviews
90%
(9)
10%
(1)
0%
(0)
0%
(0)
0%
(0)
m
mohan
Small, works great for Arduino or Raspberry Pi

These work great. I tested all 10 of them just to be sure. :) However, I prefer these switches for most uses. It helps that these only use 1 pin on the Arduino.

R
Ryan M
Touchy Feely

These are great little momentary touch sensors - simple, responsive, pre-soldered and high quality. Plus, they look cool enough to leave exposed in projects. As others have pointed out, the hardware can be modded to act as a toggle switch if that's what you're looking for - or you can just handle this with some code. I've very happy with these little switches and look forward to incorporating them into my projects.

g
gaurav malik
Great product

Great value and all worked perfectly.

v
vikash
Momentary touch switch

This is the "momentary" variety of the touch sensor - touch and it turns on, release and it turns off. The description was not real clear on that. Works pretty good even without an Arduino. I hooked up a couple of leds, touched the sensor, and viola! the leds lit up, took my finger away and they went dark.

m
mo. aasif
Five Stars

worked like a charm!

m
madan lal
Exceeds my expectations

I was able to get this working with a Raspberry Pi and a ESP8266 board with Python/Micro-Python. You can even feed a wire through the small hole next to the sensor and use anything conductive as the touch sensor (steel plate, coin, banana, whatever.)

B
Bruce S.
These are active high devices. They can be modified ...

These are active high devices. They can be modified for active low, but you will have to cut a trace and solder some pins....

j
jay dev jha
Great for keyboard

Work great for my arduino keyboard, snd very reasonably priced.

r
ramesh chander gupta
It works

It works

a
arun kumar
Works as advertised

These sensors work very well and appear to be durable. No complaints.