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Whole catalog Development toolsModulesSensor modules
Product code:
033451

Touch sensor TTP223B

Capacitive touch button on TTP223B chip
 Touch sensor TTP223B
In stock
6,30 UAH × = 12,60 UAH
Issue rate: 2 pcs (The ordered amount will be automatically rounded to 2 pcs)
from 2 pcs : 6,30 UAH
from 10 pcs : 5,67 UAH ( -10,0%)
from 50 pcs : 5,04 UAH ( -20,0%)

Current balances:

Магазин-Днепр
1954 pcs
For Online Orders
1954 pcs

Product picture

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The principle of operation of this touch button is based on the electrical capacity of the human body. The module is triggered for switching by touching the touch sensor with a finger. At rest - the output of the module is a low voltage level, when the sensor is touched, a high voltage level appears. After 12 seconds of inactivity, the module goes into a low power mode.
Very low current consumption together with the reduced consumption mode allows the module to be used in self-powered systems.
The module can be mounted on plastic, glass or any other non-metallic surfaces. The sensitivity of the sensor allows it to be mounted behind thin surfaces, which is very convenient for using it as hidden buttons. The sensor responds confidently at a distance of up to 4 mm.

The module has 3 contacts:
  • I/O (SIG) (digital signal output)
  • VCC (supply voltage)
  • GND (common contact)
The module is powered from an Arduino controller, another microprocessor control device, or from an external power source (power supply, battery). Module supply voltage 2.5 - 5.5 V.
There are jumpers on the board (A, B), with which you can change the logic of the button operation:
  • AB = 00: non-latching button, when triggered, the output level is high
  • AB = 01: latching button, high output level when turned on
  • AB = 10: non-latching button, low output when triggered
  • AB = 11: latching button, output low when turned on

Key Features:

  • Supply voltage: 2.5-5.5 V
  • Consumption in normal mode: <8 mA
  • Consumption in low power mode: <3μA
  • Response time in active mode: 60 ms
  • Response time in hibernation mode: 220 ms
  • Chip: TTP223B
  • Sensitivity: 0 - 50 pF
  • Size: 13 * 10mm

Leave your feedback or ask a question

Only this product is discussed here. Off topic comments will be deleted! Please follow the Commenting Rules.

  • Valdis 23:15 15.09.2019 share

    У платы есть один существенный минус: если вам при срабатывании сенсора нужен низкий уровень, то запаиваем перемычку "A". Но светодиод "сидит" на той же дорожке, что и "out". если мы запаиваем перемычку "A", то светодиод светится постоянно, и гаснет при срабатывании сенсора. Пришлось "развернуть" светодиод, перерезать плюсовую дорожку к сопротивлению и кинуть перемычку на GND. Если светодиод не нужен - просто выпаиваем его.

    Режим "триггера" - не проверял. Моя схема работает в паре с Attiny13, в качестве выключателя и регулятора яркости настольного аккумуляторного светильника.

    Потребление схемы в режиме ожидания 14мкА.

    Is the review helpful?
The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
To carry out technical calculations and obtain the exact parameters of the goods, use the datasheets from the manufacturer's website.

If you need additional information, or you found an error in the description, or have other questions about this product, then our manager will help you: Денис - Днепр unknown

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