ESP32 Temperature Sensor

ESP32 Web-API that can provide sensor readings from DS18B20 temperature sensors on the network

Build

Import as a new PlatformIO Project in VS Code
Set up your WiFi credentials:
- Create a new obfuscatedData.hpp header using my project Credentials Obfuscating Tool and place it in the lib/deobfuscate/src/ directory
- Alternatively: Change the WiFiHandler by adding your hardcoded credentials in the begin() function (C/C++ knowledge required)
Compile and upload to an ESP32 using PlatformIO

Default behavior

The ESP32 is ready immediately after booting. You can read out debug information via the serial interface.

Communicate with the API

Send a GET (HTTP/1.0 or HTTP/1.1) request to the web server listening on default port 80.

e.g. GET SENSOR/TEMPERATURE/0/VALUE/C HTTP/1.1

Sensor requests:

SENSOR/TEMPERATURE/<n>/VALUE/<C|F> returns a float (format: %.2f):

21.75

Responses to SENSOR requests contain INVALID READ: -127 on failure.

Actor/Buzzer requests:

ACTOR/BUZZER/<n>/OFF and ACTOR/BUZZER/<n>/ON[/<value>] (unit: milliseconds) return a string:

OK. Buzzer <n>: OFF|ON|BEEP/SIGNAL

Responses to ACTOR requests start with FAIL. (instead of OK.) on failure.

Licensing

Any code not written by me, I release under the license under which it was originally released. If the license of any third-party code is not explicitly stated in the file CONTRIBUTORS.md or with the third-party code itself, please contact the original author for more information on the license used.

My code is released under the global project license in LICENSE.