> **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

# Gravity: Easy Relay Module

**Type:** Product page · **SKU:** DFR0643 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-easy-relay-module.html ([markdown](https://core-electronics.com.au/gravity-easy-relay-module.html.md))

The traditional relay module has complicated wiring and is not friendly to beginners or students. The simple switch module simplifies the wiring method for connecting...

## Pricing

- **Price:** $14.25 (inc GST) — $12.95 AUD, exc GST
- **Quantity discounts:** 6+ $12.31 (exc GST) · 12+ $11.79 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 700 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0643:1` (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/DFR0643:1.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

The traditional relay module has complicated wiring and is not friendly to beginners or students. The simple switch module simplifies the wiring method for connecting traditional relays. The input end is equipped with an adapter, which can be compatible with most power sources, battery boxes, DC power supplies, power bank, etc. While simplifying the wiring mode, the functions of relays NC and NO are retained, and the normally open and normally closed modes can be switched by simply adjusting the toggle switch.

DFRobot's latest easy relay module uses a standard [Gravity ](https://core-electronics.com.au/search/?q=gravity)sensor interface and supports a wide voltage input of 3.3V-5.5V, making it easy to connect with main control boards such as [Arduino](https://core-electronics.com.au/brands/arduino-australia), control board, and so on. Meet your needs in control applications such as robot control, light control, smart home, security, etc.

**Features**

- 3.3 ~ 5.0V working voltage, wide voltage input, compatible with 3.3V control board, and 5V main control board.
- Toggle switch to switch NC / NO mode easily, LED indicator shows output status.
- DC2.1 input and output interface, with the included adapter, plug and play, suitable for most application scenarios.
 
**Specifications**

- VIN operating voltage: 5V-30V
- VIN operating current: 0A-2.5A
- Logic power supply: 3.3 ~ 5.5V
- Logic signal: 3.3 ~ 5.5V
- Operating temperature: -55°C - 150°C
- Switching characteristics: T (on) = 20us / T (off) = 50us
- Switching frequency: 1kHz
- Dimension: 37 \* 27mm / 1.46 \* 1.06in
 
[Check out the product wiki here](https://wiki.dfrobot.com/Gravity_Easy_relay_module)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0643-1.jpg)