Waveshare Bus Servos icon Waveshare Bus Servos Control Waveshare servos (TTL/RS485): set position & speed, release torque, read position. RTS option for converters; reverse-engineered protocol. Try it →

Robot Building Questions

ARC Pro
Learn More
Upgrade to ARC Pro
Stay at the forefront of robot programming innovation with ARC Pro, ensuring your robot is always equipped with the latest advancements.
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
Movement Joystick by Synthiam
Featured
Movement Joystick

Analog joystick UI to control any ARC movement panel via mouse/touch-configurable dead zone, max speed, center-reset for smooth robot motion

Synthiam - My Robi 2.0 by Smarty
Featured
Robot By Smarty

Robi 2.0 with EZ-B 4.0: 21 servos, 22ft cables, 6 sensors, camera, LED boards, stereo speaker; 17.8 in tall, 5.0 lb, 6 months programming

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
Dome Lift Mechanism R2D2

Dome Lift Mechanism R2D2

I am trying to convert a system so it can be used in EZ-B/ The Dome Lift MEchanism by Matthew Zwarts https://www.thingiverse.com/thing:3654411 The system works with a...
question

Switch / Case Statement

I am neck deep  in programming my "Simone" robot. I know that I can use multiple or nested if/elseif/then statements, but what would really make my life easier would be a "switch / case statement." switch(expression) { case constant-expression : statement(s); break;  case constant-expression : statement(s); break; ...
question
OTHER: Using ARC Without Internet Access?

OTHER: Using ARC Without Internet Access?

If I am out demonstrating my robot and there is bad internet service or even no internet service, how would I run ARC? Does ARC REQUIRE...
question

How To Use Prosody Contour In Speech Synthesis

You have exposed most of the prosody features (pitch, emphasis, rate, volume, break, phonemes)  and I am thrilled that they all work perfectly! Thank you. I enjoy using them to vary my robot's voice. Still, there is one feature that is only partially exposed and that is "prosody contour. " When I attempt to use prosody contour, the voice...
question
What Is The Difference Between Pauselistening  And Stoplistening

What Is The Difference Between Pauselistening And Stoplistening

I have been using these two commands together, one following the other in my scripts. So far...
question
Can You Control More Than One Ezbv4/2 In The Mobile App?

Can You Control More Than One Ezbv4/2 In The Mobile App?

Am I missing something? Can the mobile app control multiple EZBs? I am using two in my robot and one is a...
question
How To Use T265 With A Lidar?

How To Use T265 With A Lidar?

Hello guys. I'm trying to setup a base template project to use T265 and Lidar Plugins.  Can someone share a project or scripts to navigate and use the Lidar data...
question

Stopping Bing From Recording

Something has changed I guess. Bing Speech Recognition used to have controls that let the software turn off recording using these settings in the control: 6. Level Threshold Field This adjustable threshold level is used for both Auto Recording (if enabled) and stopping recording. If you find that even in manual mode the recording manually stops too...
question

Robot Skills Reach Daily Limit

I am new to ARC.  I purchased the premium subscription but was disappointed that it keeps kicking me out of skills as I'm building because I reach daily limits.  How do these limits work? Is there a way to get unlimited time on these skills? The latest issue was with Cognitive Face, but it also happened with Bing voice recognition. I got around...
question

8X8 Animator Matrix Error

when I add the skill of HT16K33 Animator (8x8) (I2C), this problem occurred often. please give me a solution for this ? Version: 2021.03.02.00 System.Exception: Capability 'I2C Master' is not supported on this EZB device. at EZ_B.Firmware.FirmwareCls.CapabilityRequired(CapabilityCls cap) at EZ_B.I2C.RpX7g4ySPM7x8vc8Iwc(Object , Object ) at...
question

Expand My Existing Robot Project With An ESP32-Cam And A Matrix (8X16)

My robot is now running fine with the 16 servos on the ESP32 and the PCA9658 and I have already been able to program some actions. Now I would like to expand my project with an ESP32 cam and a matrix. My problem is the following: I would like to connect the ESP32-Cam to the existing ESP32 (without WIFI) because the ESP32 already has a connection....
question

How To Stop Auto Arranging Of Controls

Every time I startup ARC, my controls are moved from where I left them when I saved the project.  This if very frustrating as I spend 20+ minutes trying to get the controls arranged is a way that makes it much easier to find and use controls. Is there a way to have ARC remember control layout and not do the auto arranging?