Personality Forge icon Personality Forge — Adds a Personality Forge chatbot to ARC, giving memory, emotions, AIScript dialogue, persistent conversation IDs and speech/chat integration via API. Try it →

Release 2012.11.28.00

Desktop — Windows

ARC Release

ARC (Autonomous Robot Control) is Synthiam's flagship desktop robot programming platform. Build, program, and control any robot with powerful AI, 500+ plugins, and a visual no-code interface — all from your PC.

🤖 500+ Robot Plugins
🧠 AI & Machine Learning
☁️ Synthiam Cloud
🖥️ Windows 10 or 11

Change Release Notes

This is a small release regarding Random features of your robot. There was a recent discussion about what "random" really means in programming. Random() is a common function used in computers making unpredictable decisions. However, if you wish to write your own routines for random behavior, perhaps Random() isn't optimized.

As a disclaimer: We encourage people to use the Personality Generator, which uses an algorithm based on trending - not random.

So, the solution? After a bit of brain storming, I came up with a new Random function called GetRandomUnique(). This new function tries to make the returned value unique from the last. This is not a Personality Generator replacement, but it will make your robot much better behaved.

  • EZ-Script controls can be resized
  • New EZ-Script command: GetRandomUnique()
  • EZ-Script compiler optimizations

Here is an Example Project displaying the differences between Random() and GetRandomUnique(): Example-Script-RandomNumberFunctions.EZB

User-inserted image


ARC Downloads

ARC

FREE
$0 always free
  • 1 third-party plugin skill per project
  • Trial cloud services
  • Personal, DIY & education use
  • Updated every 6–12 months
Windows Download Version 2026.06.13.00
Recommended

ARC

PRO
$8.99 per month
  • Use on 2+ PCs simultaneously
  • Unlimited robot skills
  • Cloud backup & revision history
  • Weekly features & bug fixes
  • Business use permitted
Windows Download Version 2026.06.13.00

ARC

RUNTIME
$0 always free
  • Load & run any ARC project
  • Read-only mode
  • Unlimited robot skills
  • Includes early access fixes & features
Windows Download Version 2026.06.13.00
  • Minimum requirements: Windows 10 or higher, 2 GB RAM, 500 MB free disk space.
  • Recommended: Windows 10 or higher, 8 GB RAM, 1 GB free disk space.
  • Prices are in USD.
  • More about each edition: Download & install guide.
  • Latest changes: Release notes.

Compare Editions

Feature
ARC
FREE
ARC
PRO
Get ARC Free View Plans
Usage Personal · DIY · Education Personal · DIY · Education · Business
Early access to new features & fixes — ✓
Simultaneous microcontroller connections * 1 255
Robot skills * 20 Unlimited
Skill Store plugins * 1 Unlimited
Cognitive services usage ** 10 / day 6,000 / day
Auto-positions gait actions * 40 Unlimited
Speech recognition phrases * 10 Unlimited
Camera devices * 1 Unlimited
Vision resolution max 320×240 Unlimited
Interface builder * 2 Unlimited
Cloud project size — 128 MB
Cloud project revision history — ✓
Create Exosphere requests — 50 / month
Exosphere API access — Contact Us
Volume license discounts — Contact Us
Get ARC Free View Plans

* Per robot project

** 1,000 per cognitive type: vision recognition, speech recognition, face detection, sentiment, text recognition, emotion detection, azure text to speech


ARC Pro

Upgrade to ARC Pro

Elevate your robot's capabilities to the next level with Synthiam ARC Pro, unlocking a world of possibilities in robot programming.

Author Avatar
PRO
Synthiam
LinkedIn Thingiverse Twitter YouTube GitHub
#17  

As per Random() functions in programming of all languages that I am aware of, the range of return values includes minValue but not maxValue.

So, to randomly get a number between 1 and 4, you would use GetRandomUnique(1,5)


# Choose a random actor and speak a phrase before going to their subsection.
$response = GetRandomUnique(1,4)

# Response depending on random number
if ($response = 1)
  ControlCommand("Soundboard v4", Track_61)
  Sleep(2000)
  Goto(Dr_Smith)
ELSEif ($response = 2)
  ControlCommand("Soundboard v4", Track_72)
  Sleep(2000)
  Goto(R2D2)
ELSEif ($response = 3)
  ControlCommand("Soundboard v4", Track_77)
  Sleep(2000)
  Goto(Will)
endif

  # -----------------------------------------
:Dr_Smith
# Speak a random phrase from 1 to 10
$DRresponse = GetRandomUnique(1,11)

# Response depending on random number
if ($DRresponse = 1)
  ControlCommand("Soundboard v4", Track_62)
ELSEif ($DRresponse = 2)
  ControlCommand("Soundboard v4", Track_63)
ELSEif ($DRresponse = 3)
  ControlCommand("Soundboard v4", Track_64)
ELSEif ($DRresponse = 4)
  ControlCommand("Soundboard v4", Track_65)
ELSEif ($DRresponse = 5)
  ControlCommand("Soundboard v4", Track_66)
ELSEif ($DRresponse = 6)
  ControlCommand("Soundboard v4", Track_67)
ELSEif ($DRresponse = 7)
  ControlCommand("Soundboard v4", Track_68)
ELSEif ($DRresponse = 8)
  ControlCommand("Soundboard v4", Track_69)
ELSEif ($DRresponse = 9)
  ControlCommand("Soundboard v4", Track_70)
ELSEif ($DRresponse = 10)
  ControlCommand("Soundboard v4", Track_71)
endif
Halt()
#------------------------------------------------------------------

:R2D2
# Speak a random phrase from 1 to 4
$SWresponse = GetRandomUnique(1,5)

# Response depending on random number
if ($SWresponse = 1)
  ControlCommand("Soundboard v4", Track_73)
ELSEif ($SWresponse = 2)
  ControlCommand("Soundboard v4", Track_74)
ELSEif ($SWresponse = 3)
  ControlCommand("Soundboard v4", Track_75)
ELSEif ($SWresponse = 4)
  ControlCommand("Soundboard v4", Track_76)
endif
Halt()
#------------------------------------------------------------------

:Will
ControlCommand("Soundboard v4", Track_78)
Halt()
Login to post a comment