SimonK 30A Brushless Speed Controller ESC Multicopter Helicopter Airplane – Good Quality

You don’t need to worry about choosing the wrong ESC if you’re planning to build a drone; we’ve got you covered. We have everything you need at Ibots to get your drone idea off the ground.
Motors with a maximum current consumption of 30A can be driven by the Simonk 30A BLDC ESC Electronic Speed Controller. With 2-3S LiPo batteries, it functions. In order to eliminate the requirement for an additional receiver battery, this electronic speed controller has a battery eliminator circuit (BEC) that supplies 5V and 3A to the receiver.

Simon Kirby created the SimonK firmware, which is designed specifically for ESCs (Electronic speed controllers). Multirotor performance has been found to be enhanced with this firmware, which also has a quicker response time than typical ESC firmware and is more user-friendly and compatible.
In addition, this version of the ESC has protection on the 5V receiver line and against backward polarity, so in the unlikely event that a battery is inadvertently connected backward, your motor controller will not be destroyed, and other BEC will not have an impact on the ESC.

Applications: 
450 quadcopters, F650, X525.
Other aircraft, fast remote-controlled cars, etc.

Connections:

Caution:

Never turn off the remote control before turning off the power to the BLDC ESC, even if it is directly attached to the remote control receiver. Depending on the model of the remote control, the motor may rotate at full speed if the full throttle is applied.

Features:

Maximum effectiveness Completely N-FET architecture
Maximum accuracy when using a crystal oscillator (unlike other inexpensive ESCs, temperature has no effect on the PWM operating range)
No low voltage cutoff since a multirotor crash would result from any cutoff.
No over-temperature cut-off, as any multirotor cutoff will result in a crash
Over 490 Hz reaction rate due to extremely high refresh rate and no input signal buffering
The motor responds fastest at 16 KHz motor frequency, which also has the quietest operating (no 8 KHz scream).
Super easy to use and very reliable! The throttle range is all that has to be programmed.