Knowledge — ESC

APISQUEEN's propulsion systems (U2/U5/U92/U10/AQ1020/MU7 series) are engineered for reliability, but can occasionally experience yaw drift due to mounting alignment, remote calibration or uneven load distribution. Here's how we troubleshoot adjustments:

Quick Diagnosis: Identify common triggers such as misaligned propellers or an uncalibrated remote controller.
Professional Adjustment: Use the A300 remote controller's intuitive trim controls (left/right trim keys) for real-time yaw correction.

For persistent issues, the APISQUEEN technical team (lynn@Underwaterthruster.com / nina@Underwaterthruster.com) offers tailored solutions.

[Improve equipment performance] Detailed software configuration process of APISQUEEN Lightning series ESC (60A/120A/160A). Through four core modules:
① Equipment connection specifications - Detailed explanation of 20-50V safe voltage wiring rules
② BLHeliSuite software practice - version matching points and parameter setting diagrams
③ High-frequency problem solution - 7-step diagnosis method for software errors/connection failures
④ Industrial-grade technical support - Get dual-version configuration software and selection guide

Applicable scenarios:
✔️ Propeller Thruster power adjustment
✔️ ROV underwater robot torque optimization
✔️ Industrial-grade dual ESC parallel solution

Special note: The article contains 9 key configuration screenshots and version matching comparison tables to help you avoid 90% of the burning risk.

This article explains the difference between unidirectional ESC and bidirectional ESC First, we demonstrate bidirectional ESC, using 30A Feather ESC and 16V power supply voltage. Turn on the remote control and connect the ESC plug to the power plug. Connect the three-phase line of the propeller to the three-phase line of the ESC. Connect the signal line of the ESC to the receiver, and insert the signal line into channel 1 or channel 2. Pay attention to the direction of connection. The white line is connected in the direction marked with numbers. After connecting the power supply, wait for the...

This article explains the difference between ESCs with BEC and without BECWhat is BEC?BEC: Power module, used to power servos or receivers. The BEC voltage of general ESCs is 5v, 7v, 12v, and the current is 1a, 2a, etc. (Power supply module) ESCs with BEC power module: This type of ESC has a built-in BEC module, and does not require an external BEC. It can directly obtain power from the battery and power the receiver and other control devices through the BEC module without an additional power connection.ESCs without BEC power module: This type of ESC needs to be wired...

PWM 1-2ms speed control knob.

It can be used to connect ESC signal lines to control brushless motors or underwater thrusters for operation.

If the ESC of the thruster/motor supports bidirectional, then the speed knob can control the thruster/motor to rotate clockwise or counterclockwise.
If the ESC of the thruster/motor supports only unidirectional, then it can only control one direction of rotation.