Description

What is SPI RX?

• RF module 2500-2431 connected to STM32F411 MCU which communicate via SPI
• RF module 2500-2431 bind with Frsky Transmitter only ( D16 of EU LBT firmware is not compatible now).
• SPI RX is supported in BetaFlight firmware 3.3
• SPI RX doesn’t occupy any UARTs
• Telemetry data & RSSI are sent by default with Frsky_X protocol. No need to enable TELEMETRY in configurator and set up an AUX channel for sending the RSSI data from the transmitter.
• Telemetry & RSSI work with D16/D8 of NonEU firmware, and D8 of EU firmware
• Lua script is supported, work with D16 of NonEU firmware
• 

How to bind

• 1. Power FC via USB or LiPo normally, RX LED(Green) blinking slowly
• 2. Connect FC to the configurator, Choose “SPI RX support” & “Frsky_X” in Configuration Tab–Receiver mode (They are set by default after flashing)
• 3. Then
• CLI “frsky_bind” and press ENTER, the RX LED will come solid.
• or Press RX Bind button, RX LED will come solid also
• 4. Start Transmitter in bind mode, the RX LED will fash slowly – Bind complete.
• Frsky_X — Transmitter D16(CH1-8 9ms or CH1-16 18ms）
• Frsky_D — Transmitter D8(CH1-8)
• 5. After CLI “defaults” or reflashing, SPI RX should be bound again.

Specifications:MATEKSYS F411

Flight Controller

• Target: MATEKF411RX
• MCU: 100MHz STM32F411CEU6
• IMU: MPU6000 gyro/accelerometer (SPI)
• OSD: BetaFlight OSD w/ AT7456E chip
• SPI RX: module 2500-2431, Frsky_X or Frsky_D protocol
• VCP, UART1, UART2
• WS2812 Led Strip: Yes
• Beeper: Yes
• PPM: RX2 pad
• Blackbox: No
• SBUS input: No
• I2C1 SDA & SCL: No

PDB

• Input: 6~30V (3~6S LiPo) w/TVS protection
• PDB: 4x30A (Max.4x46A)
• BEC: 5V 2A cont. (Max.3A)
• LDO 3.3V: Max.300mA
• Current Sensor 184A (Scale 179)
• Battery Voltage Sensor: 1:10 (Scale 110)

• 3x LEDs for FC STATUS (Blue) , RX (Green) and 3.3V indicator(Red)
• 4x PWM / DShot outputs
• 2x UARTs
• 1x Group of G/S1/S2/S3/S4 pads for 4in1 ESC Signal/GND
• 4x pairs of corner pads for ESC Power connections
• 1x Side-press button for BOOT(DFU) mode
• 1x Side-press button for RX bind
• 36x46mm PCB with 30.5mm mounting holes
• 10g

Includes:

• 1x Matek 411-ONE Flight Controller
• 1x Rubycon ZLH 35V/470uF (Low ESR)
• 6x silicon grommets M4 to M3
• 2x IPEX- 2.4G antenna 15cm