commit 039d51c80507d1c940c715038fbec2cb6d69f380
parent c43d0d5761f899d25f3531a0a6fc1969def3be80
Author: Vetle Haflan <vetle@haflan.dev>
Date: Thu, 9 Feb 2023 21:59:31 +0100
el-price-color.py: set Hue bulb color based on elecricity price
Diffstat:
2 files changed, 55 insertions(+), 0 deletions(-)
diff --git a/el-price-color.py b/el-price-color.py
@@ -0,0 +1,54 @@
+#!/usr/bin/python3
+
+# Fetch electricity prices from hvakosterstrommen.no
+# and set the color of a Philips Hue color bulb accordingly.
+
+import requests
+import sys
+from datetime import datetime
+from pathlib import Path
+from os import path
+import json
+import time
+
+BRIDGE = 'http://192.168.10.140'
+TARGET = 7
+username = open(f'{Path.home()}/.hue-user').read()
+
+# Electricity prices
+def fetch_prices(cache_file, dt):
+ BASE_PATH = 'https://www.hvakosterstrommen.no'
+ resp = requests.get(f'{BASE_PATH}/api/v1/prices/{dt.year}/{dt.strftime("%m-%d")}_NO1.json')
+ with open(cache_file, 'w') as f:
+ f.write(resp.text)
+
+dt = datetime.now()
+cache_file = f'/tmp/el-price-{dt.year}-{dt.month}-{dt.day}'
+if not path.exists(cache_file):
+ fetch_prices(cache_file, dt)
+with open(cache_file) as f:
+ prices = json.load(f)
+
+prices = [p['NOK_per_kWh'] for p in prices]
+avg = sum(prices)/len(prices)
+min_p = min(prices)
+max_p = max(prices)
+
+if len(sys.argv) > 2 and sys.argv[2] == 'day':
+ hours_to_show = range(len(prices))
+else:
+ hours_to_show = [dt.hour]
+
+# Lights
+for h in hours_to_show:
+ # The values are chosen so that lowest price of day -> green and highest -> red.
+ # (green=[0.30, 0.70], and red=[0.70, 0.30])
+ off = 0.4 * (prices[h] - min_p) / (max_p - min_p)
+ res = requests.put(f'{BRIDGE}/api/{username}/lights/{TARGET}/state', json={
+ 'on': True,
+ 'bri': int(254*int(sys.argv[1])/100),
+ 'xy': [0.3+off, 0.7-off],
+ 'transitiontime': 10 # centisec = 10 sec
+ })
+ print(res.content)
+ time.sleep(1)
diff --git a/glogserver.go b/glogserver.go
@@ -18,6 +18,7 @@ func main() {
log.Print("error:", err)
}
defer r.Body.Close()
+ log.Println("Request from", r.RemoteAddr)
log.Printf("%v %v | Headers: %v\n", r.Method, r.RequestURI, r.Header)
if len(b) > 0 {
log.Println("-<body>-----------------------------")
