Output Audio From EZ-B icon Output Audio From EZ-B — Example ARC skill demonstrating converting, compressing and streaming MP3/WAV to an EZ-B speaker, with play/stop commands and TTS examples. Try it →
Ask a Question
Ask a Question
Start a Conversation
Start a Conversation
Share a robot project
Share a Robot Project
View All Your Content
All Your Content
Website Help
Website Help

All Community Content

ARC Pro
Learn More
Upgrade to ARC Pro
With ARC Pro, your robot is not just a machine; it's your creative partner in the journey of technological exploration.
Compare Features View Plans
Power Up Your Scripts with AI
Describe what you want — get working robot code. The project-aware AI Script Assistant built into ARC.
100 credits
$20
250 credits
$45
500 credits BEST VALUE
$80
Learn More
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.
See How to Earn
Exosphere
What is Exosphere?
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
Synthiam Swag
See All Swag
I Make Robots Crew Socks

I Make Robots Crew Socks

Exclusive to robot builders, these are a one-size-fits-all solution up to a men's size 12. The...
Recent Robot Skills
View All
Advanced Speech Recognition

Advanced Speech Reco…

Azure Cognitive Speech recognition for ARC with custom API credentials, scripting, language control,...

Audio File Out EZB

Audio File Out EZB

Stream MP3 or WAV files from your PC to the primary EZ-B speaker for robot audio playback, alerts,...

PCA9685 Servo Driver

PCA9685 Servo Driver

Drive 16 servos over EZB I2C with a PCA9685 PWM controller, using ARC servo commands and...

Voice Activity Detection by Synthiam
Featured
Voice Activity Detection

Real-time microphone VAD using FFT to detect speech start/end and trigger scripts, with live level graph and sensitivity tuning
First Bot by derrick
Featured
Robot By Derrick

Build an autonomous vacuum with EZ-B: control DC motors, H-bridge, servos and sensors; camera tested with Synthiam ARC for navigation and control.
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
Sound Servo To XL-320 On Darwin Mini

Sound Servo To XL-320 On Darwin Mini

I’m trying to get my ROBOTIS DARWIN MINI (OpenCM9.04, 16x XL-320) to "talk" using the Sound Servo (PC Speaker) skill, but the selected...
Comments 1
Views 167
Athena |
question
Dialogflow Driving Sphero Reliably

Dialogflow Driving Sphero Reliably

I’ve got a Sphero (SPRK+) paired over Bluetooth and the Sphero Movement Panel works great for manual driving. I’m now layering in the DialogFlow robot...
Comments 1
Views 166
Athena |
question
Global Variables Between Scripts In ARC

Global Variables Between Scripts In ARC

@Athena, can you help me set up global variables in one script (LEG_v6) so they can be read and sent by another script (UART_v6)? Context: I'm...
Comments 2
Views 143
Robojack |
question
Why Does Speech Recognition Pickup Background Nois…

Why Does Speech Recognition Pickup Background Nois…

One thing I still don't understand: whenever I have the "Speak Rec" Robot Skill operating, it picks up...
Comments 14
Views 316
Athena |
question
Obstacle Scan Only Once

Obstacle Scan Only Once

, #include #include static const uint8_t UART_HEADER = 0xA5; // ARC -> Arduinostatic const uint8_t CMD_STOP_MOTORS = 0x01;static const uint8_t CMD_ACTUAL_BEARING =...
Comments 4
Views 185
Robojack |
release
ARC 2026.05.24.00 (Pro, Runtime And Free)

ARC 2026.05.24.00 (Pro, Runtime And Free)

Synthiam ARC update improves stability, STL loading, camera handling, quieter logs, browser support, and fewer crashes.
Comments 0
Views 484
general
ARC Startup Error With Chromium Browser

ARC Startup Error With Chromium Browser

I just received this error message after installing the latest version of ARC (the ARC application on my Windows 11 laptop). The error...
Comments 2
Views 167
RoboHappy |
general
Restore Inmoov Ear Cutout

Restore Inmoov Ear Cutout

Hi all, Is there anyone who can undo the cutout on an InMoov ear? I mean restoring the 3D model (STL/CAD) rather than repairing a printed part. If you can help, please...
Comments 0
Views 128
question
Stepper Reset Issue In Arduino Sketch

Stepper Reset Issue In Arduino Sketch

I'm using an Arduino Mega as the hardware controller (acting like an EZB/microcontroller) to provide PWM to four stepper motors via the...
Comments 2
Views 336
Robojack |
question
12C Adres How Do I Know?

12C Adres How Do I Know?

i know i asked this before.but i cant find the topic. my question is ,if i change a 12c port as in pic below. how do i now withs port i changed on ezbv ?sinds there are 3...
Comments 12
Views 3 k
Nomad 6R |
question
Arduino PWM Bearing Control Help

Arduino PWM Bearing Control Help

Hi @Athena, I'm requesting help to add capabilities to an existing Arduino sketch. The sketch is included at the end of this post. Can you incorporate...
Comments 53
Views 556
Robojack |
release
ARC 2026.05.19.00 (Pro, Runtime And Free)

ARC 2026.05.19.00 (Pro, Runtime And Free)

Synthiam ARC adds an embedded AI assistant for project-aware robot scripting, debugging, speech tracking, navigation, and COM port fixes.
Comments 20
Views 947
RoboHappy |