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Compact servo tester with eight knobs and sixteen channels

yahboom

yahboom 16-channel servo tester with 8 potentiometers

SKU CH-2R19-B0618

Tests 16 servo channels using 8 potentiometers with manual and centring modes, 5–8.4 V supply, over-current protection and 0.09° control accuracy

  • CPU TypeOther
  • Control 16 servos simultaneously with 8 independent channels and 8 precision potentiometers
  • Switch instantly between manual and centering modes using dedicated function keys
  • Power from 5 V to 8.4 V through a terminal block with built-in over-current protection
  • Achieve 0.09° control accuracy thanks to 1 µs PWM resolution
  • Operate any compatible servo without writing code using buttons or adjustable knobs

16-Channel Servo Tester

The Yahboom unit provides 16 independent servo channels driven by eight high-precision potentiometers. It suits RC builders, drone technicians and hobbyists who need to centre or sweep multiple servos without writing code.

Power Supply Check

Verify that your bench supply or battery delivers between 5 V and 8.4 V through the terminal block before connecting servos. The onboard over-current protection will trip if the combined draw exceeds the board’s limit, so confirm the total stall current of your servos stays within that boundary.

Sustained Operation

During long test sessions the over-current protection remains active and will shut down channels if aggregate current rises above the trip point. The 0.09-degree control accuracy holds steady as long as the supply voltage is stable and the protection is not triggered.

Highlights

  • Control 16 servos simultaneously with 8 independent channels and 8 precision potentiometers
  • Switch instantly between manual and centering modes using dedicated function keys
  • Power from 5 V to 8.4 V through a terminal block with built-in over-current protection
  • Achieve 0.09° control accuracy thanks to 1 µs PWM resolution
  • Operate any compatible servo without writing code using buttons or adjustable knobs

Specifications

CPU TypeOther

Questions about this item

Does the tester ship with servos or a power supply, or must I buy them separately?

The unit includes 8 potentiometers and 16 servo connectors; servos and a 5-8.4 V power source are not included and must be purchased separately.

Should I choose the 8-knob manual version or a different channel count for my build?

This model provides 8 independent knobs for 16 channels, letting you adjust two servos per knob or use the centering button for quick neutral positioning.

What does the 0.09-degree control accuracy mean when I connect a servo?

It means the PWM step is 1 µs, so each knob turn moves the servo in 0.09° increments for fine centering or travel-limit setting.

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