OpenHAB Sunrise Alarm

OpenHAB ruleset to simulate sunrise with smart light bulbs depending on Android (!) phone's alarm clock time. Automatically schedules Timers and WakeUp commands on Tasmota-flashed smart light bulbs whenever alarm clock settings are changed.

Settings in openHAB sitemap

Result in Tasmota web UI (set by openHAB rule)

Features

• Auto detect next alarm time from Android phone incl. week day
• Disable sunrise when alarms disabled
• Custom sunrise duration
• Auto switch-off x minutes after alarm
• Complete sunrise x minutes before alarm

Installation

TL;DR: Copy sunrise.rules to your rules, sunrise.items to your items and include the desired items in your sitemap. Adapt MQTT messages in rules to your smart light item names. Enable alarm time sync in your openHAB Android app to the AlarmClockTime item.

Set up items

Add sunrise configuration items to your items configuration file.

DateTime AlarmClockTime "Next alarm [%s]"
Switch Sunrise_Enabled "Sunrise enabled"
Number Sunrise_Minutes_Duration "Sunrise duration [%d min]"
Number Sunrise_Minutes_Before_Alarm "Full sun x min before alarm [%d min]"
Number Sunrise_Minutes_Before_Switch_Off "Keep sun on for x min after alarm [%d min]"

Obviously, you also need switchable lights, like so:

Switch shelly_bulb_1_power "Bulb 1" { channel="mqtt:topic:broker:269970ecf7:shelly_bulb_1_power" }
Dimmer shelly_bulb_1_dimmer "Bulb 1 Dimmer" { channel="mqtt:topic:broker:269970ecf7:shelly_bulb_1_dimmer" }
Color shelly_bulb_1_hsbcolor "Bulb 1 Color" { channel="mqtt:topic:broker:269970ecf7:shelly_bulb_1_hsbcolor" }
Dimmer shelly_bulb_1_white "Bulb 1 White" { channel="mqtt:topic:broker:269970ecf7:shelly_bulb_1_white" }

Switch shelly_bulb_2_power "Bulb 2" { channel="mqtt:topic:broker:998aecdec5:shelly_bulb_2_power" }
Dimmer shelly_bulb_2_dimmer "Bulb 2 Dimmer" { channel="mqtt:topic:broker:998aecdec5:shelly_bulb_2_dimmer" }
Color shelly_bulb_2_hsbcolor "Bulb 2 Color" { channel="mqtt:topic:broker:998aecdec5:shelly_bulb_2_hsbcolor" }
Dimmer shelly_bulb_2_white "Bulb 2 White" { channel="mqtt:topic:broker:998aecdec5:shelly_bulb_2_white" } 

Set up sitemap

Add items to your sitemap file, like so:

Text label="Sunrise Alarm" {
   Switch item=Sunrise_Enabled
   Default item=AlarmClockTime
   Setpoint item=Sunrise_Minutes_Duration minValue=0 maxValue=60
   Setpoint item=Sunrise_Minutes_Before_Alarm minValue=0 maxValue=60
   Setpoint item=Sunrise_Minutes_Before_Switch_Off minValue=0 maxValue=60
}

Set initial value for the 'minutes' items or else the rules will fail.

Sync alarm time from Android phone to openHAB

Set up your openHAB app in such way it will send alarm clock timers to your openHAB installation, choose the AlarmClockTime item. Refer to app manual for details.

Set up rules

Add rules from sunrise.rules to your rules folder or file. Make sure to adapt the MQTT messages in the rules (all lines starting wtih mqttActions.publishMQTT) to your smart light items.

This defines the WakeUp sequence to be launched when timer1 is triggered and the light's switch off when timer2 is reached.

To do

• Notifications
• Custom colors
• Absence detection
• Don't fire after (actual) sunrise