diff --git a/sensors.py b/sensors.py
index 63e7aaf..43a22c5 100644
--- a/sensors.py
+++ b/sensors.py
@@ -2,6 +2,7 @@ from time import perf_counter
 from datetime import datetime, timedelta
 from collections import deque
 import re
+from os.path import exists
 
 # TODO client: add a way to disable live plotting? server: stop
 # sending data periodically to everybody!
@@ -22,7 +23,6 @@ class Sensor():
 
 class Temperature1W(Sensor):
     def __init__(self, address):
-        super().__init__()
         self.measure = 'Temperature'
         self.address = address
 
@@ -30,7 +30,11 @@ class Temperature1W(Sensor):
         return f'/sys/bus/w1/devices/{self.address}/w1_slave'
 
     def read(self):
-        with open(self.path(), "r") as f:
+        path = self.path()
+        if not exists(path):
+            # WIP
+            return (perf_counter(), 0.0)
+        with open(path, "r") as f:
             content = f.readlines()
             time = perf_counter()
         if len(content) < 2: