JHEMCU GSF405A is a 1-2S F4 AIO, which also integrates four-in-one brushless ESC and ELRS 2.4G receiver. It has 5 serial ports (UART1, UART2, UART3, UART4, UART6), one I2C port, and one SBUS interface. (The serial port used by SBUS is RX2), the built-in ELRS receiver is the UART1 port, onboard a WS2812 LED light, and a WS2812 interface is reserved. Built-in black box 8MB and barometer, buzzer interface, camera interface. A 5V power supply camera interface is reserved on the board.
Flight control parameters:
CPU: STM32F405
Gyroscope/Accelerometer: MPU6000
OSD: AT7456E
Barometer: BMP280
Black box: 8MB
IIC: Support
BEC: 5V
UART: UART1 (ELRS), UART2 (external RC), UART3, UART4, UART6
USB: micro usb
Size: 25.5*25.5MM M2
Receiver: ELRS (CRSF), TBS (CRSF), SBUS, IBUS, DSM2, DS MX
Support programmable LED such as WS2812
Support buzzer
Built-in voltage and current sensors
Weight: 3.3 grams
ELRS RX parameters:
Frequency: 2.4GHZ
Working Agreement: CRSF (Betaflight)
Firmware: DIY_2400_RX_ESP8285_SX1280
ELRS receiver indicator status:
Double flash: code matching mode
Slow flashing: No transmission signal received
Steady on: Received transmit signal
Linking steps:
1. Connect USB to power the flight controller. After inserting the USB for the first time, disconnect the USB as soon as the LED on the receiver turns off. Repeat the operation twice, when the USB is inserted for the third time, the LED will start to flash double, and the receiver will enter the code matching mode.
ESC parameters:
Support PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600
Input voltage: 1S-2S Lipo
Continuous current: 5A
Firmware: BLHELI_S S_H_50_REV16_7.HEX
Packing list:
GSF405A board *1
2.4G antenna *1
2.0MM plug cord *1
470UF/10V capacitor *1
M2*6.5MM shock-absorbing ball *4
2S series board *1
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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How to choose the correct size:
Step 1 Please measure your foot length carefully.

Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
