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

Prerequisites

• REXYGEN Runtime Core must be installed and running on the target device.
• The target device is assumed to have IP address 192.168.1.100.
• 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.

Documentation

• Press F1 for help on the selected function block in the REXYGEN Studio.
• Function blocks of REXYGEN
• REXYGEN Studio User Guide
• Complete documentation of REXYGEN

Additional information

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