Read Digital icon Read Digital Read TTL digital input from an ARC I/O port; real-time red/green status for low (0V) or high (+3.3/5V), selectable board/port and read interval. Try it →

Robot Building Questions

ARC Pro
Learn More
Upgrade to ARC Pro
ARC Pro is your gateway to a community of like-minded robot enthusiasts and professionals, all united by a passion for advanced robot programming.
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
Live Stream Receiver by Amin
Featured
Live Stream Receiver

Play live web video and audio streams inside ARC from Chrome/Firefox, streaming directly to ARC camera control; network configuration may be needed.

BB-R2 (Baby R2) by MarkTheBotBldr
Featured
Robot By Markthebotbldr

Build Baby R2 (BB‑R2) with support‑free 3D prints; create Synthiam ARC robot app and iPad mobile control for easy educational robotics.

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
How To Add Project Robots To Ez-Robots On Profile

How To Add Project Robots To Ez-Robots On Profile

i have been working on my omega project for about 2 1/2 months now and i have yet to figure out how to make a ez-robot...
question

Network Question:

Ok, here is what I have: The ports are: Router 10.0.0.1 Desktop 10.0.0.2 MagicJack 10.0.0.3 EZB 4 (Sally) 10.0.0.4 I have everything going into the router and then going to the Internet. I have two wifi connections. One is for the Internet and one is for the EZB. If I hook up for the EZB, I loose the other connection. I guess my question is: How do...
question

Robots On Ebay

Vintage R.A.D. 1.0 listed on Ebay R.A.D. 1.0 $69.00 $19.99 Shipping R.A.D. 2.0 R.A.D. $80.00 free shipping
question

Free 3D Sensor Seminar

I partner of mine that I worked with robotics with over the past 10 years sent me this. Thought I would share it with you guys. Make no mistake its going to be a sales pitch , but you never know what you might learn along the way. COMPLIMENTARY 30 MINUTE WEBINAR: An introduction to using 3D sensors for inspection applications In this webinar, our...
question

Unable To Connect Multiple Ezbs

Hi guys, I have asked this before but I am unable to connect multiple EZBs with one wifi connection. I have used the Wi-Fi client mode to connect the Six and Roli to my JD. However, after I connected the JD to the network, I am able to find the Six but not the Roli in the radar. Hence, I am unable to connect all three robots through one network. I...
question

Glyph And Pose+Sound

hi is it possible to use a pose + sound while using a glyph?
question

My Battery Is Low

hi there, Im working with the EZB-4 and 21x servos + a lot leds, camera and sensors.. the robot needs a lot power in action. in the same second If my robot says: "my battery is low", he collapse.. I have no time for a reaction. its not good for the optical look.. I dont want scratches.. or a broken arm.. you know. So I need to find a way...
question
Array Entry Format

Array Entry Format

I am trying to write an Array of ControlCommand scripts but I get an error message when I Run it. What is the correct format for this kind of entry? Thank you.
question

I Just Bought Jd On May 3 And I Live In Ambler Pennsylvania How Long Should It T

I just bought it and I live in the U.S. In ambler pa how long should it take if I got expedited shipping
question

Ez Servos And Voltage

Hola Hopefully this is easy. Can the standard EZ servos (builders kit) safely run at 5 volts (but plenty of amps)? Thanks, D. Scott
question
Ez-B V4 - Servos And Power Supply

Ez-B V4 - Servos And Power Supply

Is there any documentation on how much power/amps the EZ-B V4 will supply for servos? I see a lot of you are using up to 20+ servos (and some are the big...
question
Inmoov With Bosch Motors

Inmoov With Bosch Motors

I have decided to jump into 3D printing and build a version of the Inmoov robot, here is the printer that I am going to buy, it looks a good spec....