Connecting Arduino to EZ-Builder


Program an Arduino and connect it to ARC to become an EZ-B.

Compatible Arduinos

This tutorial currently covers what Arduino's are compatible with EZ-Builder, where to download the firmware, how to flash the Arduino and connect to EZ-Builder.

Once you follow this tutorial and program an Arduino, you will be able to connect an Arduino to EZ-Buider and control the Arduino just like the EZ-B v4 or IoTiny. Essentially, you will be converting an Arduino into an EZ-B. The best part about this is having access to the source code means you can add new functionalities to the Arduino and extend capabilities of EZ-Builder. The one item to note is each Arduino will have different capabilities or lacking capabilities (i.e. video, audio, etc.).

EZ-Builder Version
- This feature works with ARC 2019.01.31.00 Beta or newer

Arduino Capabilities
Additionally, each Arduino model will have a different MCU (microcontroller) with different capabilities for servos, PWM and Analog. Consult the datasheet/manual of the Arduino you're using to ensure you understand what ports are available for different commands. For example, some Arduino models only allow PWM/Servos on specific digital ports. Meanwhile, other Arduino's share I2C with Analog ports. You will have to determine what ports are available because we have no idea due to the number of Arduino versions out there. For example, servo ports on Arduino UNO must be PWM ports 3, 5, 6, 9, 10, and 11. These limitations are that of the Arduino libraries and hardware.

There's a significant number of Arduino's variations out there each with slight modifications. This means the base firmware provided in this tutorial can be modified for various Arduino configurations. Also, you are free to add new features to the Arduino firmware and register them as Capabilities to be used in EZ-Builder. But, that's a future edit of this tutorial :).

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*Arduino Mega shown in picture above

Compatible Official Arduinos
The ARC software is compatible a number of arduino products, which the firmware can be found on their respective pages. Find your Arduino board and download the firmware from this page:

Download the firmware source code for your Arduino version or compatible from the above link and continue to the next step of this tutorial. *Note: compatible or clone Arduino's will require a toolset and library installation to compile the firmware. Check the Arduino compatible product manual for instructions on adding libraries and tools to the Arduino IDE for clone hardware.

You can configure most bluetooth modules for a higher baud rate. Check the manual for the bluetooth module. They usually use an AT command set
Tiny question, will there be an option at some point to write a sketch for the arduino and load it using tools in ARC so that a arduino could function untethered from a PC for low level tasks?

Second Question: any plans on integrating the Raspberry PI 3b plus and pi zero W into this, since it has pretty much everything built in you could need ( kinda sorta)
You can use the Arduino IDE to program arduino chips. It would be a lot of duplicated effort to create an arduino editor in ARC. 

We explored raspberry pi options and while that question doesn’t align with this tutorial, the answer is yes we’re working on a design - but it’ll take some time to ensure there’s no sacrifice of features for cross platform compatibility
#28   — Edited
Is the ESP8266 or ESP32 going to be considered in the future?
I ask because it is WiFi enabled, very cheap and can be programmed with the Arduino IDE.
I can certainly take a look at it. The only challenge will be their tcp network driver won’t keep up with the protocol requirements. We had to design our own for the use-case. Also, it’ll end up with the same number of ports as the IoTiny but no audio or video. So what’s the advantage?
#30   — Edited
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I think you should have a look at the [color=#333333][font="Helvetica neue", Helvetica, Verdana, sans-serif]HuaDuino - Featuring Lithium Battery Power-up and Charging. this board has 12 servo connections. [color=#000000][font=Arial]HuaDuino is Arduino Nano compatible [/font][/color]
Thanks DJ for your quick reply. any recommendations for a bluetooth module that would go with this board and work well with ARC.
Any for that board will work. They just create a virtual COM port in Windows, which you select in ARC.
I assume you can use the EZ-B as connection 0 and add the arduino to connection 1 to give yourself additional I/O correct?

What If the arduino has WiFi already? Can we use it wirelessly?
Yes to the ezb #1

yes to the WiFi version of arduino. Look in the getting started guide for the WiFi enabled arduino
Great tutorial

I used my Arduino today, com3 on ARC

sharp sensor:

used port ADC3

sharp IR radar

ADC graph

ADC meter

ADC read

All went well
That's great news! Appreciate the feedback:D

Any updates on adding "Capabilities"?  I'm looking to use an Arduino Mega as an EZ-B controller, but need to add (I think?) a library to manage some Neo Pixels.  Any thoughts or suggestions?


#41   — Edited
So, not quite.  If I'm reading that correctly, its flashing the Arduino sketch in that post and then the control plugin is connecting to that Arduino and its sole purpose is to run the ring?  I'm trying to add the neopixel library to the EZ-Mega.ino sketch and run two rings and a strip.  Am I overthinking it, or is that the right path?

***Update. so I added the library in the Arduino sketch, defined the strip, and have the lights animating via the sketch.  I can still connect to the Arduino from ARC so that part isn't broken.  My question now would be, how can I add a new function and call that from ez-script?  I think that will give me what I'm looking for.

***Update 2.   Ok. so I pretty much figured out that I need to add all the custom functionality to the Arduino sketch that I want (in progress), add a custom firmware (, add a new version and upload my firmware while also requesting the New Capabilities ( that I'm adding.  Whew.  Will make the firmware available when (let's be honest, if) I get it finished.
Did you see my Happy New Year Mr. Roman robot with Arduino uno -  make sure you click on the icon on the connection  - then go to settings, change the serial connection to 57600
#43   — Edited
Noggin - i can revisit the neopixel with arduino on a future live hack... I tried it last spring but man, neopixel isn't my favorite. They use A LOT of power and drain batteries super quick. Also, the whole way they work is kinda wacky... the arduino library didn’t work for me in my past live hack. Might be able to find the archived video somewhere on here and see if I made some mistakes that you could fix?

lots of people seem to like the idea of neopixels because of the convenience. Let's see what we can do...
DJ Sures - Some of your live hacks were taken down with a DCMA request, it appears, but I've watched #4 which got me started on the custom firmware.  I've baked in basic functionality to the Mega sketch, but don't know how to add the EZB Protocol commands on the software side.  I presume thats via the capabilities request, which I put one in last night, but think I did it wrong.  Essentially, if I get all the functions added to the sketch, and provide a list of the new Protocol commands that are needed to call them, can you add those to the app?  We'd need to coordinate on what bytes to send for the commands, but I modeled it after the command/sub command structure I saw.  I can send you a current copy of the firmware if you'd like to see what I was working on.

Let me know!  Feel free to pm me at my profile email address.