> **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

# Grove - Touch Sensor (Seeed Studio)

**Type:** Product page · **SKU:** SS101020037 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/grove-touch-sensor-seeed-studio.html ([markdown](https://core-electronics.com.au/grove-touch-sensor-seeed-studio.html.md))

This is a simple touch sensor module. You can use it to replace a traditional push button. Using the TTP223-B touch detector IC It measures the capacitance...

## Pricing

- **Price:** $7.70 (inc GST) — $7.00 AUD, exc GST
- **Quantity discounts:** 10+ $6.72 (exc GST) · 25+ $6.51 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 50 more in 8–10 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SS101020037:1` (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.
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- **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

This is a simple touch sensor module. You can use it to replace a traditional push button. Using the TTP223-B touch detector IC It measures the capacitance of a metallic pad. It can detect the change in capacitance when a finger is near it. This is the same technology used in the iPhone touch screen. So you can place the metallic pad under a non-metallic surface such as a plastic or glass sheet and it will still work as a button. This may be useful for projects that need to be waterproof. You can also make a secret button by placing it inconspicuously behind a smooth surface. For instance you could place them under a nonmetallic card table and by casually pressing the right location on a tabletop surface you could mysteriously control your DIY project.

**Features**

- Grove compatible interface
- 2.0-5.5V DC supply
- response time max about 60mS at fast mode, 220mS at low power mode @VDD=3V
- Low power consumption
- 2.0cm x 2.0cm twig module
- Power indicator led
 
**Applications Ideas**

- Inconspicuous button
- Water proofed electric product
- Button key replacement
 
For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through [Preface - Getting Started](https://core-electronics.com.au/attachments/localcontent/Preface_164458957de.pdf) and [Introduction to Grove](https://core-electronics.com.au/attachments/localcontent/IntroductiontoGrove_50139924b1c.pdf) before your using of the product.

****Documents****

- **Wiki**

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/s/ss101020037-1.jpg)