Firmware for ESP32

Technical task (TT) for the development of firmware for ESP32 KC868-A16

1. Project goal

Develop firmware for ESP32 KC868-A16 that provides:

Control of equipment through relay outputs.

Dynamic loading of operation scripts.

Interactive interface for configuring, monitoring, and managing devices.

2. Functional requirements

2.1. Relay control

Each of the 16 relays can be controlled:

Manually through the web interface.

Automatically according to the loaded scripts.

Support for functions:

On/Off delay.

Operation in cyclic mode.

2.2. Script loading

Script format: text or JSON files describing the operation logic.

Loading: through the web interface.

Script selection: a separate page with the ability to:

View the list of available scripts.

Select the active script for execution.

Page for viewing and editing the script (optional).

2.3. Sensor and device configuration

Page for selecting connected sensors and devices for the script:

Selecting the type of sensor/device (temperature sensors, level, buttons, etc.).

Binding physical ports to logical elements of the script.

Saving configuration for each script.

2.4. Dashboard

Displaying:

Data from sensors in real-time (graphs, text values).

Status of relays and other devices.

Control elements:

Manual On/Off of relays.

Testing of sensors and devices.

2.5. Log files

Log page:

Logging of script launches.

Recording events during operation (e.g., relay status, changes in sensor data).

Downloading logs through the web interface in TXT/JSON format.

2.6. Monitoring script execution

Execution visualization page:

Displaying active elements of the script (which relays are working, which data is being read).

Indicators of script stage execution.

Status of sensors and devices.

3. Technical requirements

1. ESP32 microcontroller:

Using both cores for simultaneous processing of network operations and script logic.

Optimizing memory usage for working with large amounts of data (scripts, logs).

2. Network:

Wi-Fi and Ethernet.

Dynamic IP configuration through the web interface.

3. File system:

Saving scripts and logs in the ESP32 memory (SPIFFS or LittleFS).

4. Interfaces:

Connecting analog and digital sensors via GPIO.

Outputs for controlling relays.

MQTT/HTTP for integration with other systems.

4. Development stages

1. Foundation preparation:

Setting up relays, network, and basic web interface.

2. Loading and executing scripts:

Developing the mechanism for loading, saving, and selecting scripts.

Integration with sensors and devices.

3. User interface:

Implementing pages: script selection, sensor configuration, dashboard, logs.

4. Monitoring operation:

Implementing a page to display status during script execution.

5. Testing and optimization.

5. Additional wishes

Intuitive web interface with adaptive design (for mobile devices).

Compatibility with popular browsers (Chrome, Firefox).

Extensibility: the ability to add new features in the future.