How to Use Shelly Pro 1: Examples, Pinouts, and Specs

The Shelly Pro 1 is a smart relay switch designed for home and industrial automation. It enables remote control of electrical devices via Wi-Fi, allowing users to automate and monitor their systems through a mobile app or third-party platforms. With its compact design and advanced features, the Shelly Pro 1 is ideal for controlling lights, appliances, and other electrical loads.

• Home automation for controlling lights, fans, and appliances.
• Industrial automation for managing electrical equipment.
• Energy monitoring and optimization.
• Integration with smart home ecosystems like Google Home, Amazon Alexa, and Home Assistant.

The Shelly Pro 1 is a versatile device with robust technical capabilities. Below are its key specifications:

The Shelly Pro 1 features a set of terminals for input and output connections. Below is the pin configuration:

The Shelly Pro 1 is straightforward to use and can be integrated into various automation systems. Follow the steps below to set up and use the device:

1. Turn off the power supply to avoid electrical hazards.
2. Connect the L and N terminals to the live and neutral wires of your AC power source.
3. Connect the O terminal to the live wire of the device you want to control.
4. Optionally, connect an external switch to the SW terminal for manual control.
5. Ensure all connections are secure and insulated.

1. Power on the Shelly Pro 1 by restoring the power supply.
2. Download the Shelly mobile app from the App Store or Google Play.
3. Follow the in-app instructions to connect the device to your Wi-Fi network.
4. Configure automation rules, schedules, and other settings as needed.

The Shelly Pro 1 can be controlled via HTTP or MQTT protocols, making it compatible with Arduino-based systems. Below is an example of Arduino code to toggle the relay using HTTP:

#include <WiFi.h>
#include <HTTPClient.h>

// Wi-Fi credentials
const char* ssid = "Your_SSID";
const char* password = "Your_PASSWORD";

// Shelly Pro 1 IP address
const char* shellyIP = "192.168.1.100"; // Replace with your device's IP

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);

  // Wait for Wi-Fi connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to Wi-Fi...");
  }
  Serial.println("Connected to Wi-Fi");
}

void loop() {
  HTTPClient http;

  // URL to toggle the relay
  String url = String("http://") + shellyIP + "/relay/0?turn=toggle";

  // Send HTTP GET request
  http.begin(url);
  int httpResponseCode = http.GET();

  if (httpResponseCode > 0) {
    Serial.print("Response code: ");
    Serial.println(httpResponseCode);
  } else {
    Serial.print("Error on HTTP request: ");
    Serial.println(http.errorToString(httpResponseCode).c_str());
  }

  http.end();

  // Wait 5 seconds before toggling again
  delay(5000);
}

• Ensure the total load does not exceed the maximum rating of 16A.
• Use proper insulation and grounding to prevent electrical hazards.
• Place the device in a well-ventilated area to avoid overheating.
• Regularly update the firmware via the Shelly app for optimal performance and security.

1. Device not connecting to Wi-Fi:

   • Ensure the Wi-Fi network is 2.4 GHz (not 5 GHz).
   • Check that the SSID and password are entered correctly.
   • Restart the router and the Shelly Pro 1.

2. Relay not switching:

   • Verify the wiring connections and ensure the load is within the rated capacity.
   • Check the app settings to ensure the relay is enabled.

3. Device overheating:

   • Ensure the device is not installed in a confined space.
   • Reduce the load if it approaches the maximum rating.

1. Can the Shelly Pro 1 work without Wi-Fi?

   • Yes, it can be controlled manually via the external switch or locally through its web interface.

2. Is the Shelly Pro 1 compatible with smart home platforms?

   • Yes, it supports integration with Google Home, Amazon Alexa, and Home Assistant.

3. How do I reset the device?

   • Press and hold the reset button for 10 seconds until the LED indicator blinks.

By following this documentation, you can effectively use the Shelly Pro 1 for your automation needs.