PICO LUA

Run lua on a pico (2)

How this works

This works by downloading the Lua source code and modifying it to work with the Pico SDK.

The main file being replaced is loslib.c which is the Lua OS library.

See patch_lua.sh and lua_patch for more info.

Use

# Install deps (Fedora only)
# If you have built pico software before, you can likely skip this step
./deps.sh

# Download and modify the Lua source code
# This can not be skipped
./patch_lua.sh

# Get the Pico SDK (needed even if you have it)
# This code uses a relative path for the PICO_SDK easiest to just let a copy live here
# Removing refs to `env.src` and providing your own $PICO_SDK_PATH env var can override this
./get_pico_sdk.sh

# Get and install the picotool binary 
# This is NOT needed if you have it installed and in your path)
./get_picotool.sh

# Build the example code in `lua_test`
./build.sh

# Flash the example code
./flash.sh # Or however you normally flash

Scripting

Edit the script at ./script.lua.

This will be automatically build and included into the compiled C code. (see convert_lua.sh)

Right now this simple API has 2 methods: pico.led(enabled) - Enable or disable the led pico.sleep_ms - Sleep for a number of milliseconds