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The input table defines what values are available as input(s) to mix scripts. There are two forms of input table entries.
SOURCE syntax
SOURCE inputs provide the current value of a selected OpenTX variable. The source must set by the user when the mix script is configured. Source can be any value OpenTX knows about (inputs, channels, telemetry values, switches, custom functions,...). Note: typical range is -1024 thru +1024. Simply divide the input value by 10.24 to interpret as a percentage from -100% to +100%.
VALUE syntax
VALUE inputs provide a constant value that is set by the user when the mix script is configured.
name - maximum length of 8 characters
min - minimum value of -128
max - maximum value of 127
default - must be within the valid range specified
Maximum of 6 inputs per script (warning : was 8 in 2.1)
If defined, init function is called right after the script is loaded from SD card and begins execution. Init is called only once before the run function is called for the first time.
Input Parameters:
none
Return values:
none
This section provides more specifics on the OpenTX Lua implementation. Here you will find syntax rules for interface tables and functions.
The return statment is the last statement in an OpenTX Lua script. It defines the input/output table values and functions used to run the script.
Parameters init, input and output are optional. If a script doesn't use them, they can be omitted from return statement.
Example without init and output:
The run function is the function that is periodically called for the lifetime of script execution. Syntax of the run function is different between and .
zero or more input values, their names are arbitrary, their meaning and order is defined by the input table. (see )
comma separated list of output values, their order and meaning is defined by the output table. (see )
The key-event parameter indicates which transmitter button has been pressed (see )
Outputs are only used in mix scripts. The output table defines only name(s), the actual values are determined by the script's .
Script Return Value | Mix Value in OpenTX |
0 | 0% |
996 | 97.2% |
1024 | 100% |
-1024 | -100% |
Lua Standard Libraries | Included |
package | - |
coroutine | - |
table | - |
since OpenTX 2.1.0 (with limitations) |
os | - |
string | since OpenTX 2.1.7 |
bit32 | since OpenTX 2.1.0 |
math | since OpenTX 2.0.0 |
debug | - |