Increase/decrease HomeAssistant lamp brightness with keyboard shortcut

readme.md

Using the script below, I added a macro for F1 and F2 in Keyboard Maestro that run the script like so:

~/Development/scripts/change_light_brigthness.sh up

and

~/Development/scripts/change_light_brigthness.sh down

change_light_brightness.sh

#!/bin/bash

# Set the direction based on the first argument, default to 'up'
direction=${1:-up}
token="token"

# Endpoint and entity ID
endpoint="http://homeassistant.local:8123/api"
entity_id="light.desk_light_office"

# Get current status
status=$(curl -s -H "Authorization: Bearer ${token}" -H "Content-Type: application/json" "${endpoint}/states/${entity_id}")

# Extract brightness, default to 0 if not found
brightness=$(echo $status | jq '.attributes.brightness // 0')

# Adjust brightness
if [[ "$direction" == "down" ]]; then
  brightness=$((brightness - 26))
else
  brightness=$((brightness + 26))
fi

# Make sure brightness is within range
brightness=$(($brightness < 0 ? 0 : $brightness))
brightness=$(($brightness > 255 ? 255 : $brightness))

# Set new brightness or turn off
if [[ $brightness -gt 0 ]]; then
  curl -s -H "Authorization: Bearer ${token}" -H "Content-Type: application/json" --data '{"entity_id": "'"${entity_id}"'", "brightness": '"${brightness}"'}' "${endpoint}/services/light/turn_on"
else
  curl -s -H "Authorization: Bearer ${token}" -H "Content-Type: application/json" --data '{"entity_id": "'"${entity_id}"'"}' "${endpoint}/services/light/turn_off"
fi