About Lua interpreter
The ESP3D has a Lua interpreter that can be used to execute Lua scripts.
Lua is a lightweight, high-level, multi-paradigm programming language designed for embedded use. please refer to Lua for more information.
In addition to the standard Lua interpreter commands, the ESP3D has a few additional functions that can be used to interact with the ESP3D.
ESP3D functions
| Name | Description |
|---|---|
pinMode(pin, mode) |
Set the mode of a pin |
digitalWrite(pin, value) |
Set the value of a pin |
digitalRead(pin) |
Read the value of a pin |
analogRead(pin) |
Read the value of an analog pin |
analogWrite(pin, value) |
Set the value of an analog pin |
print(text) |
Print text on output of ESP3D, do not forget to add \n at the end of the text |
millis() |
Return the number of milliseconds since the ESP3D started |
delay(ms) |
Delay for a number of milliseconds |
yield() |
Yield the execution of the script to the ESP3D |
available() |
Return the number of commands available on a input of ESP3D |
readData() |
Read a command from a input of ESP3D |
Note
Lua interpreter is not available in the ESP8266/ESP8285 firmwares
Note
Because the script is executed is indepedant task of the ESP3D, do not forget to use the delay(ms) or yield() functions to avoid to trigger the watchdog of the ESP32 during a long script / long loop.
