Automatically Turn Off Coffee Machines and Other Devices After One Hour Using Shelly 1PM Gen4

Use Case: Automatically Turn Off a Coffee Machine After One Hour

What this setup does

Prevents the coffee machine from staying on indefinitely by using the built-in Auto Off timer.

Best for

• Coffee machines

• Irons

• Portable heaters

• Curling irons

Before You Begin

• Shelly 1PM Gen4 installed

• Device connected to Wi-Fi

Step 1: Configure Auto Off

Open:

Output → Timer

Enable:

Auto OFF

Set:

3600 seconds

Whenever the relay turns on, a one-hour countdown starts.

Step 2: Verify Power Consumption

Open:

Home

Monitor:

• Active Power

• Voltage

This helps confirm normal operation.

Optional: Trigger an External Service

Open:

Output → Actions

Create:

Event

Switch turned OFF

Action

Send an HTTP request to:

• Home Assistant

• Node-RED

• IFTTT

• Pushover

• Another Shelly device

Example:

http://192.168.1.50/rpc/Switch.Set?id=0&on=true

This request turns on another Shelly device when the event occurs.

Common Problems

Device switches off too quickly

Open:

Switch → Timer

Verify the Auto OFF value is in seconds.

Wall switch behavior feels incorrect

Open:

Input/Output Settings

Select the proper Input Mode:

• Toggle switch

• Momentary switch

• Edge switch

according to your wiring.