0302-11 ESP8266 REST API

Example Projects > 0302 IoT Integrations > 0302-11 ESP8266 REST API

ESP8266 REST API example

The source files located in this folder illustrate how to inject data into a running algorithm using REST API of REXYGEN Runtime Core via WiFi operated ESP8266.

There are individual HTTP POST and HTTP GET requests for writing/reading data of all common types: double, long, Boolean and string.

Timing of the project

The REX algorithm runs each 100 milliseconds (0.1 s). See the EXEC function block,
tick x ntick0 = 0.05 x 2 = 0.1


  • REXYGEN Runtime Core must be installed and running on the target device.
  • The target device is assumed to have IP address
  • User admin and password mypassword is assumed on the target device. Can be specified in sketch.

Running the example

  • The *exec.mdl file is the project main file.
  • Open it with REXYGEN Studio.
  • Compile and download it to the target device.
  • Switch to Watch mode and observe the displayed values.
  • Upload the sketch to ESP8266 enabled device using Arduino IDE. The values in REXYGEN algorithm will be overwritten by the values defined in the script.


Additional information

  • Visit the REXYGEN webpage for more information about the example projects and developing advanced automation and control solutions using REXYGEN.