# Modulino Latch Relay

**Type:** Product page · **SKU:** ABX00138 · **Brand:** [Arduino](https://core-electronics.com.au/brands/arduino-australia)
**Page:** https://core-electronics.com.au/arduino-modulino-latching-relay.html ([markdown](https://core-electronics.com.au/arduino-modulino-latching-relay.html.md))

Control high-power devices or circuits with a single digital connection.

## Pricing

- **Price:** $16.75 (inc GST) — $15.23 AUD, exc GST

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## Description

Ideal for automation and energy-conscious designs, this ready-to-use node connects in seconds, plays nicely with Arduino tools, and daisy-chains with other Modulino parts for rapid prototyping without rewiring.

Compatibility is straightforward on a 3.3 V Qwiic I2C bus. You can place several nodes on one connector and assign each a unique address using the Modulino library and its AddressChanger example.

**Technical Specifications**

| Board name | Modulino Latch Relay |
|---|---|
| SKU | ABX00138 |
| Featured component | SY32A-S-105D1M1 (STM32C011 for I2C communication) |
| Bus | I2C via Qwiic |
| I2C address | 0x04, adjustable via software |
| Supply voltage | 3.3 V (from Qwiic connector) |
| Logic level on pins | 3.3 V |
| Dimensions | 41 mm x 25.36 mm |
| Weight | 4.4 g |
| Included accessory | Qwiic cable, 5 cm |

**Additional Resources**

- Schematics
- Datasheet

**What’s Included**

- Modulino Latch Relay board
- Qwiic cable, 5 cm

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/B/ABX00138-3.jpg)