updated and added README with images

.gitignore

@@ -0,0 +1,56 @@
+# Created by https://www.toptal.com/developers/gitignore/api/visualstudiocode,macos
+# Edit at https://www.toptal.com/developers/gitignore?templates=visualstudiocode,macos
+
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### macOS Patch ###
+# iCloud generated files
+*.icloud
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+.ionide
+
+# End of https://www.toptal.com/developers/gitignore/api/visualstudiocode,macos

.vscode/settings.json

@@ -1,13 +0,0 @@
-{
-    "python.languageServer": "Pylance",
-    "python.linting.pylintEnabled": false,
-    "python.analysis.diagnosticSeverityOverrides": {
-        "reportMissingModuleSource": "none"
-    },
-    "python.analysis.extraPaths": [
-        "",
-        "/Users/peter/.vscode/extensions/joedevivo.vscode-circuitpython-0.1.19-darwin-x64/stubs",
-        "/Users/peter/Library/Application Support/Code/User/globalStorage/joedevivo.vscode-circuitpython/bundle/20220820/adafruit-circuitpython-bundle-py-20220820/lib"
-    ],
-    "circuitpython.board.version": null
-}

ConnectWiFi.py

@@ -1,11 +1,9 @@
 def connect():
     import network
-    from time import sleep_ms
+    from time import sleep, sleep_ms
  
-    ssid = "-Netzlein-"
+    ssid = "YourSSID"
-    password = "Lau5Buam!"
+    password = "totallysecurepassword"
-    #ssid = "Phaser"
-    #password = "toolbelt555"
 
     print("Connecting to WiFi")
  

README.md

@@ -0,0 +1,22 @@
+# ESP8266 Thermometer with OLED display
+
+![thermometer](images/thermometer.jpg)
+
+## Hardware
+- ESP-12F, WiFi Module Based on ESP8266 (preferrably with breakout board)
+- SSD1306 128 x 64 Dot Matrix OLED with Controller
+- DS1820 parasitic power 1-Wire temperature sensor
+
+## Features
+- Connects to Wifi
+- Gets outside temperature via openweathermap
+- Gets inside temperature via DS1820 temperature sensor
+- Plots both temperatures against each other
+- Handles Wifi and service outages gracefully
+- Handles possible collisions of temperature labels
+
+## Images
+![ESP breakout board](images/board.jpg)
+![display module](images/display.jpg)
+![plot](images/plot.jpg)
+![outage](images/outage.jpg)

main.py

@@ -2,7 +2,7 @@
 
 from machine import Pin, I2C
 import ssd1306
-from time import sleep_ms
+from time import sleep, sleep_ms
 import onewire, ds18x20
 import urequests
 import ConnectWiFi
@@ -45,23 +45,6 @@ outer_templog = []
 refresh_counter = 1
 burn_in_counter = 0
 
-"""
-def rand( floor, mod=0, negative = False):
-    # return random value from -floor.mod to floor.mod if negative is True
-
-    from os import urandom as rnd
-
-    sign = 1 if ord(rnd(1))%10 > 5 else -1
-    sign = sign if negative else 1
-
-    if mod:
-        value = float(('{}.{}').format(ord(rnd(1))%floor, ord(rnd(1))%mod))
-    else:
-        value = int(('{}').format(ord(rnd(1))%floor))
-
-    return sign*value
-"""
-
 def cleanedlist(list):
     return [i for i in list if i != errortemp]
 
@@ -210,7 +193,7 @@ def refresh_outer():
     
     if connection_success:
         try:
-            response = urequests.get('http://api.openweathermap.org/data/2.5/weather?zip=79106,de&appid=50fdc9dbace8903dae0ac4ee4143b3b5')
+            response = urequests.get('http://api.openweathermap.org/data/2.5/weather?zip=---your-zip---,de&appid=---your-app-id---')
             parsed = response.json()
 
             if 'cod' in parsed:
@@ -284,7 +267,7 @@ while True:
     do_refresh_outer = False
 
     ds18b20.convert_temp() # refresh value ahead of time for minimum latency
-    sleep_ms(1000) # refresh inner temp every second
+    sleep(1) # refresh inner temp every second
 
     print('.', end='')