Visual, real-time, agent based programming for Arduino. Now available for Windows, Mac, and Linux.

Embrio is a different kind of visual programming environment which doesn’t try to mimic traditional programming, instead you create your program out of multiple “agents” which each have one job and all run at the same time in parallel. Agents attach to each other, activating and suppressing other agents similar to neurons in a brain. Agents are implemented by adding and connecting visual nodes, and you can write your own custom nodes giving you the full power of traditional coding wrapped in an easy to use graphical interface. Work with a live connection to your Arduino to get real time feedback and interaction, avoiding the cumbersome compile, upload, and test loop of traditional programming.

Agent Based Programming

An agent is a little piece of a program that has one job. Agents connect to and turn on and off other agents. An Embrio program is made up of multiple agents running in parallel.

Real Time Connection

Work with a live connection to your Arduino, see how your program works as you build it!

See the list of compatible boards.

Compiles To Arduino

When your program is done it can be compiled to run entirely on your Arduino! The profiler tool gives you accurate resource usage information while you work.

Learn more by going through the growing library of video tutorials, for example:


Blink Speed Control - This project builds on the LED Blink example and shows how to control the speed of the blink with a potentiometer.


Color Fading RGB LEDs - This project shows how to randomly fade the colors of RGB LEDs, as well as control their speed and brightness with potentiometers. The project also demonstrates how to encapsulate groups of nodes as Functions which can be reused multiple times.


Autonomous Car - In this 3 part project we’ll see how to program an autonomous robot car using Embrio. The car has 3 behaviors. It wanders around, avoiding obstacles by turning away from near by walls and stopping before hitting a wall. Every so often it stops and...

Recent Activity

10/19/2019 - New Forum Post

Send code to a Nextion display

Daniel.T: If you open the Node you will see this line: Serial.print ("page 8"); Serial.write (0xff); Serial.write (0xff); Serial.write (0xff); Now you can chose what page you like on this line :)

9/23/2019 - Embrio Software Update


New Features
!!! Please uninstall the current version and download a new installer from the site, the updater cannot update some files !!!
Can now drag windows to customize the layout. Can show multiple node screen editors at a time!
Better performance on Windows.

9/21/2019 - New Forum Post

Setup failed

Krentzel: Hello friends, at the end of installation of the setup it comes the error: "Error 0x80070661: Failed to execute MSI package / The processor-type ist not right". We have an PC with Win7/pro and 32

6/5/2019 - New Forum Post

Compatible with Mac OS X 10.14 Mojave?

EmbrioAdmin: I updated my Mac Mini to the newest OS and didn't have any problems with my connection. There must be something specific to your computer. If you have time, could you take a screenshot of the mess

2/14/2019 - Embrio Software Update


Bugs Fixed
Fixed a compile bug when there were multiple instances of a node with an IO set with connected inputs.

2/12/2019 - Embrio Software Update


New Features
!!!!!! IMPORTANT !!!!!! Please do a full uninstall and reinstall of the new version, the update effects files that cannot be updated by the updater program !!!!!! IMPORTANT !!!!!!
Better performance and easier install on Mac and Linux.
Press Control + G to replace the selected nodes with a new Reusable Node Group
Press Control + D to duplicated the selected nodes and move the new copy to the mouse cursor.
Can hide or unhide node inputs and output that don’t have any connection, to clean up busy node screens
Auto arrange a node screen by pressing A
Inputs and outputs can be sorted by clicking and dragging
C# array declaration compiles to Arduino so you don’t need to implement nodes that need arrays in both languages
Node selection outline is a pixel bigger making it much more noticeable.

Bugs Fixed
Don’t use exposed input values when nothing set or connected, instead use the disconnected value on the root agent
Arrays in the declaration section were causing a compile bug in the timing program
Don’t show an empty tooltip on a node screen tab if there is no note to show

10/18/2018 - New Tutorial

Simon Style Memory Game

This project shows the entire process of programming a Simon style memory game using agents. The video is fairly long, but goes in full detail how to create a program like this using Agent Based programming. The video starts with a quick explanation of how the physical box was made, but most of it goes over creating the entire project from start to finish.

7/5/2018 - New Library Item

EasyDriver Stepper

This node lets you control a stepper motor, like the Nema 17 Bipolar Stepper Motor, with the EasyDriver - Stepper Motor Driver.

3/16/2018 - New Tutorial

Bezier Curve Node

The bezier curve node lets you convert a linear input to a curved output. It is especially useful for working with physical devices that have a non linear response, or adding ease in and out throughout a project for a more natural look.

3/5/2018 - New Library Item

I2C 20x4 LCD

This node works with any standard I2C 20x4 LCD module.

2/24/2018 - New Library Item

Pololu Maestro Servo Controllers

This node lets you control a bunch of servos with the Pololu Maestro family of servo control boards using the maestro-arduino library. A servo control board is great because it moves all of the hardware and software resources needed to control servo motors off of the Arduino and only takes up 2 pins to control a large number of servos. The board creates the smooth PWM signals needed to run the servos. You can also use these boards to control anything that's controlled by a PWM signal like LEDs.

1/2/2018 - New Tutorial

Servo Control with UI

This tutorial shows how to control a Servo with an Arduino via a user interface running on a PC, connected by a serial cable. The project contains two controllers, one to run on the Arduino, and one to run on the PC with a UI made with HTML, CSS, and jQuery. The two controllers communicate with built in serial communication nodes.