Description
A flight controller with a built-in Serial ELRS receiver and 4-IN-1 Blheli_S 12A ESC specially developed for Digital HD drone, which removes the analog OSD chip 7456, optimizes the PCB layout, and supports 1-2S Lipo/LiHV lithium batteries, very Suitable for Digital HD Tinywhoop/Cinewhoop/Toothpick and other small drones. The flight controller uses the F405 chip, supports Betaflight/INAV firmware, has 3 sets of complete UARTs available, and integrates a BMP280 barometerand 8Mbp blackbox, which greatly enhances the playability of the flight controller.

Flight controller:
MCU:STM32F405RGT6 (168M, 1MbyteFLASH)
GYRO Sensor:BMI270(SPI connection)
Mount hole size: 25.5mm*25.5mm
Power supply: 1-2S battery input (DC 2.9V-8.7V)
Built-in 12A(each) Blheli_S 4in1 ESC
Built-in Serial ExpressLRS 2-4G
Built-in BMP280 Barometer
Built-in 8MBp blackbox
Built-in voltage meter sensor , voltage meter scale 110
Built-in current meter sensor , current meter scale 470

Onboard 4in1 ESC:
Power supply: 1-2S LiPo/LiPo HV
Current: 12A continuous peak 15A (3 seconds)
Support BLHeli_S Bluejay firmware
Factory firmware: Bluejay ESC V0.19
Firmware target: Z-H-30
Default protocol: DSHOT300
When use 1s battery and high KV 0702/0802 motors, should set startup power to 1100/1200

Onboard UART ExpressLRS 2-4G Receiver:
Packet Rate option: 25/50/150/250/500
RF Frequency: 2-4G
Antenna: enameled copper wire 31mm length
Telemetry output Power: Default firmware version: ExpressLRS V3.0.1
Firmware target: HappyModel EP 2400 RX
Could update firmware via ExpressLRS configurator