The CTRL HAT is a Raspberry Pi I/O automation board for use with solid state power relays (SSRs). Designed for switching high power loads without the need for costly extra hardware such as SSR modules or contactors.

CTRL HAT is ideally suited to automation or industrial control applications requiring high-speed switching, or switching of loads not suitable for regular mechanical relays, such as motors, power supplies, or noise sensitive equipment such as amplifiers.

Featuring the well-documented MCP23017 16 channel GPIO expander, the CTRL HAT is easy to setup and control via I2C. It can be used with any device featuring an I2C bus and works with 3.3V or 5V devices (eg, Arduino); by selecting the appropriate jumper. Channels 0-3 (group A) are utilised for the relays, giving you an extra 12 GPIOs for use with your project.

The CTRL HAT is powered through the host Raspberry Pi using the GPIO port and can be used in-conjunction with other expansion boards (check-out our HAT RACK mounting board). Up to eight CTRL HATs can be used with a single Raspberry Pi. The relays can be powered separately by removing the jumper marked “Link”, so you can use an external supply to power the relays, reducing the load on the Raspberry Pi. Use of an external power supply is recommended if you plan to connect multiple HATs to your Raspberry Pi.

Features

• Support 4 industry standard SIP type solid state relays
• Up to 10A @ 250V / 16A @ 250V (forced air cooled)
• Huge range of compatible solid state relays (known list)
• Easy to use interactive web GUI
• Based on the MCP23017 16-port GPIO expander
• Jumper selectable I2C address & GPIO voltage (3.3V / 5V)
• Can be used with 3.3V or 5V I2C host devices (eg, Arduino)
• Built-in user programmable ID EEPROM

Interactive Web GUI

Once installed on your Raspberry Pi, this interactive GUI allows quick & easy control of your CTRL HAT without the need for any coding. It is designed to be both a user guide & quick reference to the CTRL HAT pinout. The GUI is fully responsive and adapts to any screen size.

Check-out the Live Demo.

Easy Installer

Our easy installer takes care of the setup process automatically.

sudo wget https://git.plasmadan.com/install.sh sudo sh install.sh

Alternatively, you can install manually. See our setup guide.

Arduino Wiring

We built CTRL HAT to work with any device featuring an I2C bus. It can be used with either 3.3V devices (eg, Raspberry Pi) or 5V devices (eg, Arduino); by selecting the appropriate jumper (see device compatibility).

3D Model

We have created an interactive 3D model which you can use in your designs.

Compliance

• UL 796 certified manufacturer
• RoHS compliant (lead free)
• CE & UKCA compliant (certificates)

Dimensions

Documentation

You can find this and our other Raspberry Pi projects on our GitHub page.

Taxes, Warranty & Shipping

We offer a 12 month warranty on all our products (excludes damage caused by water ingress, misuse or abuse).

We are a VAT registered business. For our UK customers VAT is inclusive. For international sales outside the UK VAT is not charged.

Note: Local taxes and other import or handling fees may be applied. These are the responsibility of the buyer. We will always declare the purchase price excluding shipping.

VAT: GB 163 9265 87