EZMQTT Client icon EZMQTT Client MQTT client for ARC: connect to brokers, publish/subscribe topics, map incoming messages to variables (incl. binary arrays) and run scripts. Try it →

Robot Building Questions

ARC Pro
Learn More
Upgrade to ARC Pro
Take control of your robot's destiny by subscribing to Synthiam ARC Pro, and watch it evolve into a versatile and responsive machine.
Power Up Your Scripts with AI
Describe what you want — get working robot code. The project-aware AI Script Assistant built into ARC.
Synthiam Credit
Log In
Earn synthiam credit to lower synthiam product costs
Earn Free Credit
Share your robots, answer questions, and help others — earn credit toward ARC Pro, AI credits, and robot swag.
Remote control robots or add telepresence capabilities with Exosphere

Drive Real Robots, Anywhere

Remotely operate robots around the world or add live telepresence to your own build — straight from your browser.

Discover Exosphere
Joystick (XInput) by Synthiam
Featured
Joystick (Xinput)

XInput joystick skill for ARC: maps Xbox controllers to movement, servos, triggers, vibration, variables; supports analog inputs and scripts.

Ravage the VHS tape Robot by Jeremie
Featured
Robot By Jeremie

G1 Transformers-inspired Ravage VHS tape robot with EZ-B IoTiny, 360 servos, LiPo battery and fold-down stand for upright driving

Community

Join the Synthiam Robotics Community

Connect with thousands of robot builders, educators, and engineers. Share projects, get answers, and learn to build smarter robots with ARC.

  • ✓ Showcase your robots & projects
  • ✓ Get help from experienced builders
  • ✓ Earn credit toward Synthiam products
Create Your Free Account Log In
question
ARC Won't Let Me Merge Old Skill From Another Project

ARC Won't Let Me Merge Old Skill From Another Project

I've been trying to move some skills from an old project to a new one. I keep getting  a message that I need to...
question
Ultrasonic; ADC Or Digital??

Ultrasonic; ADC Or Digital??

I looked up the only three tutorials I could find about ultrasonic sonar, and they all showed the ping sonars connected to digital ports. In the section...
question
Constant Disconnection And Myriad Of Issues

Constant Disconnection And Myriad Of Issues

The system takes forever to connect, then it drops connection (have windows defender and allowed it through, shut down webroot)......
question

Servo Command Code Through A Uart Port. EZB To Kangaroo/Sabertooth To DC Moto

The answer may be easy but the question is very hard to ask. I don't know why this happened... Anyway, here's my setup: * I have several servos on my robot and a DC motor controlled through a Kangaroo X2 attached to a Sabertooth 2X32.  * I have the Kangaroo attached to a uart port 1 on an EZB v4 (Digital ports 5 and 6 for Rx & Tx). * I usually...
question

Can't Find The Script Manager To Install In ARC

I'm trying to find the Script Manager in ARC so I can add it to my project. Am I just missing it or was it removed for some reason?
question

All Servos Jerk When First Used After A Release (Not Power Up)

I haven't seen this one before but there's a lot I haven't seen. lol. I'm using EZ Robot HDD servos for my first time. I've always mostly used analog servos. Here's my problem: *When I power up the EZ HDD servos I get no jerk. *However the first time I send a signal to move (either with a script or a servo control) they will jerk quickly opposite...
question
Interfaz ARC Mbile

Interfaz ARC Mbile

Hi, From the mobile application I try to make my robot speak in blockly with the SayEZB block but I get the error that you see in the image Does anyone know how to fix it or what is...
question
Struggling With Autoposition

Struggling With Autoposition

Not a fan of the autoposition, but I had to tackle it for the drink robot because unlike servo recorder, I needed the robot to precisely grab a cup and repeat...
question

New To ARC App First Time Use Issues With Public EZ Apps Button?

I am new to my school and I am in charge of the robotics class. There are several EZrobots, and I am trying to setup the app. I have successfully logged in. I'm looking to get into the public EZ and I get this message Server was unable to process request.---> value was either too large or too small for an Int16.  Error, check application log. I...
question
How To Have Aimlbot Speak Response

How To Have Aimlbot Speak Response

I have many programs that I created with the AimlBot / Bing Speech recognition programs. I would like the AimlBot to speak the response the same way the...
question
Is Pandorabot Still Running

Is Pandorabot Still Running

Just was wondering , is anyone else using the Pandorabot ? Seems recently that when I try to use it, the Pandora replies that its unable to process request, please...
question

ARC Wont Connect To EZB

I pulled an EZB -v4 out of the closet today wanting to use it as a bench tester for my robot. I cant seem to have ARC connect to it over Wifi. Arc can find it but won't connect. Here's the debug info I get. Can you guys see anything? : Attempting connection on 192.168.0.64:23 Connected to 192.168.0.64:23 Reports EZB v4 OS With Comm 2 Firmware...