> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Capacitive Touch Sensor

**Type:** Product page · **SKU:** CE09449 · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia)
**Page:** https://core-electronics.com.au/capacitive-touch-sensor-red.html ([markdown](https://core-electronics.com.au/capacitive-touch-sensor-red.html.md))

A button without the click!

## Pricing

- **Price:** $1.05 (inc GST) — $0.95 AUD, exc GST
- **Quantity discounts:** 5+ $0.94 (exc GST) · 15+ $0.91 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 96 today; more stock is typically available with a 8–12 day lead time.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE09449:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/CE09449:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

Add a simple capacitive switch to your projects!

A button is great to show where a user should press, but what if you want to hide the switch behind some cardboard? Use a capacitive touch sensor!

This switch can be configured to behave as a momentary or latching switch, and using high or low output when pressed.

To change the logic output from active high when pressed (default) to active low solder a link between the pads marked **A**.

To change the switch behaviour from a momentary switch (default) to a latching switch solder a link between the pads marked **B**.

The only connections required to use the switch are power (VCC), Ground (GND), and Output (I/O).

### Specifications

- TTP223
- Input voltage: 2.5-5.5V
- Onboard status and power LEDs
- 14.2 x 11 x 3 mm

### Examples

#### Raspberry Pi Pico - Micropython

 ```
from utime import sleep
import machine

onboard_led = machine.Pin(25, machine.Pin.OUT)

cap_touch = machine.Pin(0, machine.Pin.IN)

while True:
    if cap_touch.value() == 0:
        onboard_led.on()
    else:
        onboard_led.off()
        sleep(0.1)
```

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/n/sny00138-edit.jpg)