Set Digital icon Set Digital Toggle a digital I/O port between TTL low (0V) and high (3.3V/5V) in ARC; select board and port, simple on/off control-signal only. Try it →

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Gaming Mouse Pad

Gaming Mouse Pad

While programming your robot, these 9x7 inch personalized mouse pads deliver a smooth experience...
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EZ-SLAM by Synthiam
Featured
EZ-SLAM

Creates a map in a global variable; proof-of-concept SLAM visualizer (very experimental).

Ladybug Lawn Mower 3D Designing the first 3d print by jstarne1
Featured
Robot By Jstarne1

Ladybug-themed all-in-one mower and weed eater kit showcasing an integrated lawn mower and trimmer design.

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robot
Fxrtst's Introducing Alan

Fxrtst's Introducing Alan

Build Alan interactive android head: modular, 3D-printed animatronic kit with 2025 video courseware, BOM links, EZB-compatible and upgradeable.
release
ARC 2026.04.14.01 (Pro, Runtime And Free)

ARC 2026.04.14.01 (Pro, Runtime And Free)

Synthiam ARC delivers tougher, smarter robot control with stability fixes, improved joystick, audio, vision, memory, and clearer...
question
Usb To Serial Connection Camera Option

Usb To Serial Connection Camera Option

With the option to use the EZB in serial to USB you lose the option for the camera since the connections use the camera port. Is it possible to...
question
EZ-B V4 Units Troubleshooting

EZ-B V4 Units Troubleshooting

I have two older EZ-B v4 units that are causing problems. I don’t use them regularly-only occasionally for testing. i made 2,3 reset on both EZBs.  I’ve included...
Servo
Inverse Kinematic Arm
By Synthiam

Inverse Kinematic Arm v12

Control robot arms with inverse and forward kinematics, converting X/Y/Z positions into joint motion and reporting end-effector location.
question
Soundboard Volume Zero Issue

Soundboard Volume Zero Issue

I have a question about the ARC robot skill SoundBoard (EZB). Why can't the volume go to zero anymore? I'm not sure when this changed, but it seems the soundboard...
blog
The First Bias You Ship Is A Voice

The First Bias You Ship Is A Voice

Robots don’t just speak-they set expectations. The accent, pace, and tone you choose shape trust, speed, and even ethics. Here’s why voice is your...
general
Request For Promotional Material

Request For Promotional Material

I will be exhibiting at a Robotics Expo next month with all my robots programmed using ARC. I need a handout for visitors to take away-a document that...
release
ARC 2026.04.11.00 (Pro, Runtime And Free)

ARC 2026.04.11.00 (Pro, Runtime And Free)

Synthiam ARC update: improved stability, smarter EZ-B emulator, Blockly crash fixes, real-time boot logs, UI polish and expanded education...
question
Requesting Video For Inverse Kinematic Arm

Requesting Video For Inverse Kinematic Arm

I have a question about the ARC Robot Skill called Inverse Kinematic Arm. Is there any video available that demonstrates this skill? I...
firmware
Esp32plus Firmware
For Esp32 Hardware

Esp32plus Firmware v4

ESP32Plus for Synthiam ARC enables ESP32 robot control with audio streaming, ESP32-CAM passthrough, PCA9685 16-servo I2C control and UART...
Servo
PCA9685 Servo Driver
By Synthiam Inc

PCA9685 Servo Driver v2

Convert an EZB I2C bus into a 16-channel PCA9685 servo controller, exposing V0..V15 with hardware-timed PWM, external power and chainable...