What Is a Main Board on a Claw Machine? Control Board Explained

The main board (also called the control board) is the central electronic circuit board that manages all functions of a claw machine — claw strength, motor movement, timing, win frequency, coin/token acceptance, sound, and lighting. It is the brain of every claw crane machine.

How Does a Main Board Work?

The main board acts as the command center, receiving inputs and sending outputs to every component:

Input Output
Coin acceptor credit signal Start play session, run play timer
Joystick direction signal Drive X/Y axis motors
Drop button press Lower Z-axis motor, close claw
Prize sensor trigger Register win, reset win counter
Limit switch signal Stop axis motor at boundary

What Settings Can Be Configured on a Main Board?

  • Claw strength — grab force and hold force independently
  • Win frequency — how many plays between each allowed win
  • Play timer — seconds per play session
  • Motor speed — X, Y, and Z axis movement speed
  • Return-to-home behavior — claw position after each play
  • Prize sensor sensitivity — detection threshold for prize delivery
  • Free play mode — disable coin requirement for testing or events
  • Sound and lighting settings — volume, LED mode

Why Is Main Board Quality Critical?

  • Reliability — board failure means complete machine downtime until replacement
  • Configurability — a limited board restricts how precisely you can tune profitability
  • Compatibility — the board must support all connected components (motors, sensors, payment devices)
  • Longevity — commercial-grade boards withstand continuous 16–24 hour operation

Hiclawcrane main boards are designed for continuous commercial use, with independent grab/hold strength settings, configurable win frequency, and USB settings export on select models.

Can a Main Board Be Replaced in the Field?

Yes. Before replacing, photograph all current settings. Disconnect all labeled harness connectors, swap the board, reconnect, and restore settings. Total replacement time is approximately 30–45 minutes. Some Hiclawcrane boards support settings export via USB to eliminate manual re-entry after replacement.

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