Product overview
The HAKRC 70A F4 Stack from Shenzhen Haike Technology Co., Ltd. combines an F405 flight controller with a BLHeli-32 four-in-one ESC for integration into a UAV. Its supplied architecture is an electronics stack rather than a complete flight platform or airframe kit. Both boards use 30.5mm mounting spacing; the flight controller measures 36 * 36mm and the ESC measures 40 * 43mm. Their respective net weights are 8.5g and 14g, giving integrators separate board footprints and weights for installation planning.
The flight controller provides five UARTs, AT7456E OSD, an integrated barometer, a built-in current sensor, Type-C USB and a connector for the DJI FPV Air System. Its BEC outputs are 5V/3A and 10V/2.5A. Power integration must account for different input ranges: 2S-6S Lipo for the controller and 2S-8S Lipo for the ESC. The ESC carries a BLHeli-32 65A designation alongside specified continuous and peak currents of 70A and 75A. Its supported control protocols extend from PWM through Dshot600.
Specifications
| Specification | Value & conditions |
|---|---|
| Flight controller dimensions and mounting | 36 * 36mm (30.5mm-30.5mm mounting hole)F405 flight controller. |
| Flight controller packaging dimensions | 64 * 64 * 35mmF405 flight controller. |
| Flight controller input voltage | 2S-6S LipoF405 flight controller. |
| Flight controller net weight | 8.5gF405 flight controller. |
| Flight controller packaging weight | 40gF405 flight controller. |
| CPU | STM32F405RET6F405 flight controller. |
| IMU | ICM42688F405 flight controller specification. |
| OSD | AT7456EF405 flight controller. |
| Black box | 16MF405 flight controller specification. |
| 5V BEC | 5V/3AF405 flight controller. |
| 10V BEC | 10V/2.5AF405 flight controller. |
| Flight controller firmware | HAKRCF405V2F405 flight controller. |
| Receiver support | Frsky/Futaba/Flysky/TBS Crossfire/DSMX: DSM2 receiverF405 flight controller. |
| ESC dimensions and mounting | 40 * 43mm (30.5mm-30.5mm mounting hole)BLHeli_32 65A ESC. |
| ESC net weight | 14gBLHeli_32 65A ESC. |
| ESC packaging weight | 53gBLHeli_32 65A ESC. |
| ESC input voltage | 2S-8S LipoBLHeli_32 65A ESC. |
| Galvanometer ratio | 160BLHeli_32 65A ESC. |
| ESC continuous current | 70ABLHeli_32 65A ESC; continuous current. |
| ESC peak current | 75ABLHeli_32 65A ESC; peak current. |
| ESC firmware | HAKRC_ AT4G_ Multi_ 32.9 HexBLHeli_32 65A ESC. |
| ESC protocol support | PWM, Oneshot125, Oneshot42, Multispot, Dshot150, Dshot300, Dshot600BLHeli_32 65A ESC. |
| ESC packaging dimensions | 64 * 64 * 35mmBLHeli_32 65A ESC. |
| Barometer | IntegratedF405 flight controller. |
| LED equipment | Four programmable LED effect lightsF405 flight controller. |
| Current sensor | Built-in current sensorF405 flight controller. |
| UART count | 5 UARTsF405 flight controller. |
| FPV system connection | Connector for DJI FPV Air SystemBuilt-in connector. |
| USB interface | Type-C USBF405 flight controller. |
| Product identity and supplied architecture | HAKRC 70A F4 Stack from Shenzhen Haike Technology Co., Ltd.; F4V2 stack combining F405 flight control and a BLHeli-32 65A four-in-one ESC |
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