Product overview
The RCTimer BeeRotor BS15A is a 4-in-1 electronic speed controller that combines four ESC channels in a compact board. Its electrical configuration provides 15A x4 continuous current and 20A x4 peak current, with a 2~4S power input and an integrated 5.3V/1.2A BEC. BLHeli_S firmware supports DSHOT600, OneShot125, OneShot42 and Multishot, giving the controller several stated control protocol options. The associated BLHeli_S firmware identifier is L_H_00. These ratings distinguish the continuous current capacity from the higher peak rating.
The board measures 27x33mm, uses 20mm mounting hole spacing and weighs 4.6g, defining its physical footprint for installation. Its architecture combines an EFM8BB2 microcontroller running at 48MHz with a three-phase MOSFET driver and hardware synchronous rectification. A four-layer PCB uses 3oz copper, while PWM resolution is 2048 steps with an EN/PWM control signal. The design specifically accommodates the BeeRotor Mini FC BRF4, for which compatibility is stated. The product configuration is an ESC board with a built-in BEC.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity | RCTimer BeeRotor BS15A 4-in-1 electronic speed controller |
| Flight controller compatibility | Designed for compatibility with BeeRotor Mini FC BRF4 |
| Firmware | BLHeli_S |
| Firmware identifier | L_H_00 |
| Supported control protocols | DSHOT600 / OneShot125 / OneShot42 / Multishot |
| Microcontroller | EFM8BB2 |
| Processing frequency | 48MHz |
| Driver architecture | Three-phase MOSFET driver with hardware synchronous rectification |
| PWM resolution | 2048 steps |
| Control signal | EN/PWM |
| Power input | 2~4S |
| BEC output | 5.3V/1.2ABuilt-in BEC. |
| Continuous current rating | 15A x4Continuous current. |
| Peak current rating | 20A x4Peak current. |
| PCB construction | 4 layers, 3oz copper |
| Dimensions | 27x33mm |
| Mounting hole spacing | 20mm |
| Weight | 4.6g |
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