15 minutes before alarm, the bedroom dimmer gently rises from 1% to 60%, simulating sunrise. Wake up without sound.
Trigger
Google Calendar alarm / manual setpoint (e.g. 6:45)
Action
Bedroom LED dimmer 1% → 60% over 15 min · audio alarm kicks in at 60%
Devices needed
Why it helps
In Moldova the winter sun rises late and many mornings start in the dark, which makes an abrupt wake-up harsh and tiring. A simulated sunrise in the bedroom prepares your body to wake a few minutes before the alarm, through a gentle rise in light instead of a jarring sound. For apartment families it also helps because the warm light, building gradually, wakes one person without disturbing a partner or child in the same room.
How it works
The automation starts from a source time: a Google Calendar alarm or a manual setpoint (for example 6:45). Fifteen minutes before it, the central hub calculates the start moment and begins raising the bedroom LED dimmer from 1% to 60% along a smooth ramp. The light builds progressively, and when it reaches 60% an audio alarm on the speaker optionally kicks in, as a safety net if the light alone hasn't woken you.
At CasaSmart we configure the scenario in Home Assistant running locally on the hub in your home, so the light ramp works even when the internet drops. The dimmable bulb or dimmer (Zigbee, Matter or Wi-Fi) and the speaker are integrated into one system, and the wake time can come from a synced calendar or from a fixed schedule you adjust yourself in the app. Together we tune the ramp curve, the colour temperature and the maximum level, so the wake-up is comfortable for your specific room.
Setup steps
Use a smart bulb or a dimmable LED dimmer on the bedside lamp or the bedroom ceiling light. What matters is that the source can be smoothly adjusted at very low percentages, so the ramp starts almost imperceptibly from 1%.
We integrate the bulb/dimmer and, optionally, the speaker into the central hub over Zigbee, Matter or Wi-Fi, so they all respond to the same scenario. The hub becomes the brain that triggers the ramp at the right time.
You pick the time source: a Google Calendar alarm that syncs with your schedule, or a fixed setpoint (for example 6:45) you adjust yourself in the app. The scenario automatically calculates the start 15 minutes earlier.
Together we set the ramp duration (15 minutes by default), the maximum level (around 60%) and a warm colour temperature for the morning. The curve can be made gentler or faster depending on how hard you wake up.
Optionally, we set the speaker to play a sound at 60%, as a safety net on heavy-sleep days. This keeps the light as the primary method, with sound stepping in only if needed.
Practical tips
FAQ
Yes. We configure the scenario in Home Assistant running locally on the hub in your home, so the light ramp starts at the set time even if the internet drops. An online connection is useful mainly for syncing with Google Calendar.
A smart bulb or a dimmable LED dimmer that adjusts smoothly at very low levels. We integrate Zigbee, Matter or Wi-Fi models into the central hub; we choose the right solution for your lamp or ceiling light together.
You can avoid that by using an individual lamp on your bedside table instead of the ceiling light. The sunrise stays localised and gentle, and the audio backup can run through headphones or a small speaker so it doesn't disturb anyone else.
Yes. The time comes either from a Google Calendar alarm that updates with your schedule, or from a fixed setpoint you change anytime in the app. The scenario automatically recalculates the start 15 minutes earlier.
Auto morning routine
At 7am blinds rise, coffee maker starts, kitchen warms to 22°C. One Home Assistant scene.
Auto leak shutoff
Bathroom or kitchen leak sensor detects water and closes the main valve via a motorised relay. Before the neighbours notice.
Vacation simulation
On vacation, the home "lives" by itself: lights turn on randomly, blinds move, music plays for a few minutes. Burglars see an occupied apartment.