mikroe_relay2_lca717

LCA717 - Relay 2 Click (Mikroe)

Summary

This project shows the implementation of a two single-pole solid state relays (SSR) IC that is integrated on the Relay 2 Click board.

Relay 2 click is a dual relay click board™, equipped with two single-pole solid state relays (SSR), built with the patented OptoMOS® technology. These SSR devices allow reasonably high current, up to 2A and voltage up to 30V (peak-to-peak). It can be used as an MCU controlled switch for the instrumentation and sensor circuitry power control, various I/O subsystems, control of various embedded electronic applications, and similar cases where reliable and clean power supply control is required.

Required Hardware

• A BGM220P Explorer Kit board.

• Or SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit (BRD4002 + BRD4338A)

• A MikroE Relay 2 Click board.

Hardware Connection

• If the BGM220P Explorer Kit is used:

  The Relay 2 Click board supports MikroBus, so it can connect easily to the Explorer Kit via MikroBus header. Assure that the 45-degree corner of Click board matches the 45-degree white line of the Explorer Kit.

  

• If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

  Description	BRD4338A GPIO	BRD4002 EXP Header	MikroE Relay 2 Click board
  Relay 1	GPIO_46	P24	RL1
  Relay 2	GPIO_47	P26	RL2

Setup

You can either create a project based on an example project or start with an empty example project.

Create a project based on an example project

1. From the Launcher Home, add your device to My Products, click on it, and click on the EXAMPLE PROJECTS & DEMOS tab. Find the example project filtering by "relay".

2. Click Create button on the Third Party Hardware Drivers - LCA717 - Relay 2 Click (Mikroe) example. Example project creation dialog pops up -> click Create and Finish and Project should be generated.

   

3. Build and flash this example to the board.

Start with an empty example project

1. Create an "Empty C Project" for your board using Simplicity Studio v5. Use the default project settings.

2. Copy the file app/example/mikroe_relay2_lca717/app.c into the project root folder (overwriting the existing file).

3. Install the software components:

   • Open the .slcp file in the project.

   • Select the SOFTWARE COMPONENTS tab.

   • Install the following components:

     If the BGM220P Explorer Kit is used:

     • [Services] → [Timers] → [Sleep Timer]

     • [Third Party Hardware Drivers] → [Miscellaneous] → [LCA717 - Relay 2 Click (Mikroe)] → use default configuration.

       

     If the SiWx917 Wi-Fi 6 and Bluetooth LE 8 MB Flash SoC Pro Kit is used:

     • [WiSeConnect 3 SDK] → [Device] → [Si91x] → [MCU] → [Service] → [Sleep Timer for Si91x]

     • [Third Party Hardware Drivers] → [Miscellaneous] → [LCA717 - Relay 2 Click (Mikroe)] → use default configuration.

       

4. Build and flash this example to the board.

Note:

• Make sure that the Third Party Hardware Drivers extension is installed. If not, follow this documentation.

• Third-party Drivers Extension must be enabled for the project to install "LCA717 - Relay 2 Click (Mikroe)" component.

How It Works

The input stage of the device is comprised of a highly efficient GaAIAs infrared LED, used to drive the photovoltaic elements of the SSR. The output stage has two N-type MOSFETs, which allow both DC and AC to be switched to the output stage.

Report Bugs & Get Support

To report bugs in the Application Examples projects, please create a new "Issue" in the "Issues" section of platform_hardware_drivers_sdk_extensions repo. Please reference the board, project, and source files associated with the bug, and reference line numbers. If you are proposing a fix, also include information on the proposed fix. Since these examples are provided as-is, there is no guarantee that these examples will be updated to fix these issues.

Questions and comments related to these examples should be made by creating a new "Issue" in the "Issues" section of platform_hardware_drivers_sdk_extensions repo.