HMC5883 Compass icon HMC5883 Compass Reads HMC5883 3-axis compass via I2C and updates EZ-Script variables on demand; polled control offers periodic heading data, for connected sensors. Try it →

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Text Overlay by Synthiam
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Text Overlay

Overlay a variable on a processed camera image at X/Y coordinates; name the variable and attach to a specific or any available camera

Adventurebot4WD by RoboHappy
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Robot By Robohappy

4-wheel drive robot upgrade using four CR servos with Y-splitter cables to preserve directional control; camera, sensors and more planned

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question
PCA9685 I2C Port Selection

PCA9685 I2C Port Selection

Hi Athena, I'm using the PCA9685 Robot Skill in ARC with an EZB v4 controller, and the PCA9685 is connected to the EZB v4 via the I2C port. I'm not getting any response...
question
Open
EZ-B V3 Set Digital Triggers Low-Level Relay On Co

EZ-B V3 Set Digital Triggers Low-Level Relay On Co

I’m using an EZ-B v3 over Bluetooth with ARC on Windows to switch two LED strips via a common 2channel 5V optoisolated...
release
ARC 2026.05.24.00 (Pro, Runtime And Free)

ARC 2026.05.24.00 (Pro, Runtime And Free)

ARC v2026.06.13.00 boosts reliability, error handling, and Soundboard ControlCommand automation for flexible robot audio control.
general
ARC Shutdown Seat Error

ARC Shutdown Seat Error

Hello, Since the last ARC update I've started seeing a new issue: ARC shows a popup error and hangs during shutdown, preventing the robot from completing its shutdown...
question
Inmoov Head Movements

Inmoov Head Movements

I built a new InMoov head and I’m trying to figure out how to move it. I assembled the head the same way as the original and I’m using Synthiam ARC to handle speech, vision, and...
question
Arduino_V11 Symmetric PWM Steering

Arduino_V11 Symmetric PWM Steering

Thank you for the Arduino sketch and the ARC scripts. I'm using the Arduino sketch (Arduino_v10) as the robot controller (acting as the EZB) connected...
general
Inmoov Head Fiber Optics Question

Inmoov Head Fiber Optics Question

I see you designed a nice InMoov head with full movement, and I'm printing one now. Are the fiber optics included with the design, or do they need to be...
question
ESP32-CAM NMS Pose Yaw Flips

ESP32-CAM NMS Pose Yaw Flips

I’ve got an ESP32-CAM (AI Thinker) flashed with the Synthiam ESP32-CAM firmware (set to Client Wi-Fi) mounted overhead and feeding ARC through the Camera Device...
question
ARC Skills Needed For Inmoov

ARC Skills Needed For Inmoov

Servo Mapping EZ-B v4.pdf Hello Athena, I have built an EZ-Robot InMoov robot head and customized it. I have implemented a camera in each eye, with the right eye...
question
Openai Dall-E Skill Deprecated

Openai Dall-E Skill Deprecated

The "OpenAI Dall-E Image" Robot Skill returns the following error message in ARC. I assume this is because the skill has been discontinued. Is there a...
question
Stabilizing Frequency Detector On Rock Pi X

Stabilizing Frequency Detector On Rock Pi X

Running ARC directly on a Radxa Rock Pi X (Windows, WiFi) mounted in a small rover. I’m using the Frequency Detector skill to move a...
general
ARC AI Assistant Script Limits

ARC AI Assistant Script Limits

I have a question about working with long scripts in the new ARC AI Assistant console. The console appears to have a line/character limit and won't accept...