Tasmota-Berry-emulator

This project is part of the Tasmota project. Since end of 2023, Tasmota introduced an animation framework for Leds based on the embedded Berry programming languages. However iterating when building new animations requires numerous updates on the Tasmota devices and reboots.

This project is a minimal Tasmota/Berry emulator enabling to run and try animations on a laptop, without the need to iterate on an actual embedded device. The goal is to provide an animated image (animated GIF or else) to vizualize the result and iterate.

Installation

Requirements: Pyhton 3.x, C standard compiler

Step 1. Clone the repository

git clone https://github.com/s-hadinger/Tasmota-Berry-emulator.git
cd Tasmota-Berry-emulator

Step 2. Compile Berry

make
cd ..

You should see something like this:

> make
[Prebuild] generate resources
[Compile] src/be_api.c
[Compile] src/be_baselib.c
[Compile] src/be_bytecode.c
[Compile] src/be_byteslib.c
[Compile] src/be_class.c
[Compile] src/be_code.c
[Compile] src/be_debug.c
[Compile] src/be_debuglib.c
[Compile] src/be_exec.c
[Compile] src/be_filelib.c
[Compile] src/be_func.c
[Compile] src/be_gc.c
[Compile] src/be_gclib.c
[Compile] src/be_globallib.c
[Compile] src/be_introspectlib.c
[Compile] src/be_jsonlib.c
[Compile] src/be_lexer.c
[Compile] src/be_libs.c
[Compile] src/be_list.c
[Compile] src/be_listlib.c
[Compile] src/be_map.c
[Compile] src/be_maplib.c
[Compile] src/be_mathlib.c
[Compile] src/be_mem.c
[Compile] src/be_module.c
[Compile] src/be_object.c
[Compile] src/be_oslib.c
[Compile] src/be_parser.c
[Compile] src/be_rangelib.c
[Compile] src/be_repl.c
[Compile] src/be_solidifylib.c
[Compile] src/be_strictlib.c
[Compile] src/be_string.c
[Compile] src/be_strlib.c
[Compile] src/be_syslib.c
[Compile] src/be_timelib.c
[Compile] src/be_undefinedlib.c
[Compile] src/be_var.c
[Compile] src/be_vector.c
[Compile] src/be_vm.c
[Compile] default/be_modtab.c
[Compile] default/be_port.c
[Compile] default/be_re_lib.c
[Compile] default/berry.c
[Compile] re1.5/backtrack.c
[Compile] re1.5/charclass.c
[Compile] re1.5/cleanmarks.c
[Compile] re1.5/compile.c
[Compile] re1.5/compilecode.c
[Compile] re1.5/dumpcode.c
[Compile] re1.5/pike.c
[Compile] re1.5/recursive.c
[Compile] re1.5/recursiveloop.c
[Compile] re1.5/sub.c
[Compile] re1.5/thompson.c
[Compile] re1.5/util.c
[Linking...]
done

Step 3. Prepare the Python environnement

python3 -m venv python_env
source python_env/bin/activate
python3 -m pip install "imageio"

Output:

> python3 -m venv python_env
> source python_env/bin/activate
> python3 -m pip install "imageio"
[... lots of linees]
Successfully installed imageio-2.33.1 numpy-1.26.2 pillow-10.1.0

How to use

Copy your animation script in directory tasmota and run the following:

./run_animate.be tasmota/<file>.be
python3 generate_gif.py output.jsonl

Example:

> ./run_animate.be tasmota/animate_demo_cylon.be
Animation exported to 'output.jsonl'
> python3 generate_gif.py output.jsonl -o cylon.gif

Example

demo_pulse

Berry code:

import animate

var strip = Leds(5 * 5, gpio.pin(gpio.WS2812, 0))
var anim = animate.core(strip)
anim.set_back_color(0x2222AA)
var pulse = animate.pulse(0xFF4444, 2, 1)
var osc1 = animate.oscillator(-3, 26, 5000, animate.COSINE)
osc1.set_cb(pulse, pulse.set_pos)

# animate color of pulse
var palette = animate.palette(animate.PALETTE_STANDARD_TAG, 30000)
palette.set_cb(pulse, pulse.set_color)

anim.start()

> ./run_animate.be -d 30000 tasmota/animate_demo_pulse.be
Animation exported to 'output.jsonl'
> python3 generate_gif.py output.jsonl -o pulse.gif

demo_cylon

import animate

var strip = Leds(5 * 5, gpio.pin(gpio.WS2812, 0))
var anim = animate.core(strip)
anim.set_back_color(0x000000)
var pulse = animate.pulse(0xFF0000, 3, 2)
var osc1 = animate.oscillator(0, 23, 3000, animate.TRIANGLE)
osc1.set_cb(pulse, pulse.set_pos)

anim.start()

> ./run_animate.be -d 3000 tasmota/animate_demo_cylon.be
Animation exported to 'output.jsonl'
> python3 generate_gif.py output.jsonl -o cylon.gif