Diagnostic Report icon Diagnostic Report — Collects and sends ARC diagnostic reports to Synthiam to help troubleshoot EZ-B and robot connection issues 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

Robot Building Questions

ARC Pro
Learn More
Upgrade to ARC Pro
Your robot can be more than a simple automated machine with the power of ARC Pro!
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 build robots" Hoodie

"I build robots" Hoodie

This heavy hooded sweatshirt is perfect for robot builders. The material mix of cotton and polyester...
Recent Robot Skills
View All
Feetech Serial Bus Servo

Feetech Serial Bus S…

Control Feetech SC serial bus smart servos via EZB UART or PC COM port with ARC virtual ports,...

Feetech RS485 Servo

Feetech RS485 Servo

Control Feetech serial bus smart servos via EZB UART or PC COM port in ARC using virtual ports...

Total Speech Recognition

Total Speech Recogni…

Offline Windows speech recognition with open dictionary, confidence filtering, and scriptable phrase...

PWM Servo Ramping by Synthiam Inc.
Featured
PWM Servo Ramping

Smoothly ramps PWM servos on EZB D0-D23 via Vx-to-Dx mapping for natural, gradual motion without snapping.
Bob's Inmoov by bhouston
Featured
Robot By Bhouston

InMoov robot running on EZ-Robot: project recaps, links to original builds and ongoing updates
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
Open
Controller Options For Rover Upgrade

Controller Options For Rover Upgrade

Hi @Athena, I'm rebuilding my rover to improve mission capability and would appreciate advice on controller hardware. Current setup (ARC project...
Comments 12
Views 106
Robojack |
question
Open
QR Scan Repeats, Servos Jitter On Leonardo

QR Scan Repeats, Servos Jitter On Leonardo

I’m using an Arduino Leonardo over USB with the EZ-Genuino_Leonardo firmware to drive two SG90 servos on D9 and D10 from ARC. Connection...
Comments 1
Views 14
Athena |
question
Open
Wheel Encoder On Opencm 9.04

Wheel Encoder On Opencm 9.04

I’m running ARC on Windows with a Robotis OpenCM 9.04-C over USB. The board is acting as my EZ-B interface to drive two DYNAMIXEL XL-320s in wheel mode. I’ve added...
Comments 1
Views 33
Athena |
question
Open
Sphero Plus AR.Drone Camera Conflict

Sphero Plus AR.Drone Camera Conflict

Running ARC on Windows with a Sphero (Bluetooth) and a Parrot AR.Drone 2.0 (WiFi). Sphero connects fine and the Sphero Movement Panel drives it...
Comments 1
Views 49
Athena |
question
Open
Six Hexapod Ultrasonic Avoidance Blocking

Six Hexapod Ultrasonic Avoidance Blocking

Running a Six Hexapod (EZ-B v4 over WiFi) with an HCSR04 mounted front-center (Trig=D0, Echo=D1) and ARC on Windows. Locomotion is via...
Comments 1
Views 76
Athena |
question
Open
Smoothing Micro:Bit PWM From Slide Script

Smoothing Micro:Bit PWM From Slide Script

I’m trying to do live brightness control of a small 12V LED strip segment from a BBC micro:bit connected to ARC over USB. I flashed the...
Comments 1
Views 87
Athena |
question
Open
Dual-Axis Compass Jitter On Leonardo

Dual-Axis Compass Jitter On Leonardo

I’ve got an Arduino Leonardo connected to ARC over USB running the EZ-Genuino_Leonardo firmware, and I made sure to check DTR Enabled in the...
Comments 1
Views 75
Athena |
question
Scriptstartwait Delay On ADC4

Scriptstartwait Delay On ADC4

I need a little help with timing in a JavaScript script I have running in my robot. It works great but there is one feature that I'd like to speed up. Here's what...
Comments 6
Views 293
Dave Schulpius |
question
MPU9150 Polling Freezes PCA9685 Servos

MPU9150 Polling Freezes PCA9685 Servos

Setup: Arduino Uno over USB to ARC running the Arduino EZB firmware, with an Adafruit PCA9685 16channel servo driver on the Arduino’s I2C (addr...
Comments 1
Views 132
Athena |
question
Ensure Variable State Saver Loads First

Ensure Variable State Saver Loads First

Running a JD Humanoid over WiFi to an EZB, and I’m trying to persist a few calibration/tuning variables between ARC sessions using the...
Comments 1
Views 141
Athena |
question
Sound Servo EZB Not Reacting On Roomba Iotiny

Sound Servo EZB Not Reacting On Roomba Iotiny

I’m building a talking Roomba (650) and hit a wall with Sound Servo (EZB). Hardware: Roomba base, Synthiam ARC on Windows,...
Comments 1
Views 143
Athena |
question
Text Overlay Flicker With Hugging Face

Text Overlay Flicker With Hugging Face

I’ve got an Atomic Pi mounted in a small rover running Windows with ARC, a Logitech C920 on USB, and WiFi for internet access. I’m using the...
Comments 1
Views 244
Athena |