ESP32-Service-Now-Temp-Monitor

Code to make a ESP 32 read temp and post to a Service Now instance.

Features include:

• Built-in captive portal to set up to wifi
• forms to capture the server path and password/username
• ability to reset the wifi settings without changing code
• ability to POST results back to a ServiceNow instance (or any other platform with a similar table structure)
• Ability to change field names
• Ability to GET a new refresh time

Still in progress:

• Ability to change field names
• Ability to GET a new refresh time
• code optimization
• captive portal customization

Libaries needed in Arduino IDE:

• For the DHT sensor

  • Adafruit Unified Sensor - https://github.com/adafruit/Adafruit_Sensor
  • DHT sensor library - https://github.com/adafruit/DHT-sensor-library

• For the captive portal

  • ESP Connect - https://github.com/ayushsharma82/ESPConnect - simple connect portal
  • AsyncTCP - https://github.com/dvarrel/AsyncTCP
  • ESPAsyncWebServer - https://github.com/lacamera/ESPAsyncWebServer

• For the REST and other config

  • HTTP Client -https://github.com/amcewen/HttpClient
  • Preferences (to write settings to the EEPROM) - https://github.com/vshymanskyy/Preferences
  • WiFi.H https://github.com/espressif/arduino-esp32/tree/master/libraries/WiFi
  • Arduinojson - https://arduinojson.org/?utm_source=meta&utm_medium=library.properties

Known bug at this time

Link to ServiceNow Application

https://github.com/spudwoot/EnviromentalMonitoring

Wiring Diagram