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README.md
Mamba Basic F405 Flight Controllers
30x30: https://www.diatone.us/products/mamba-basic-f405-mk3-lite-flight-controlle 20x20: https://www.diatone.us/products/mamba-basic-f405mini-mk3-5-fc-m2-20mm
The Mamba Basic line of flight controllers are produced by Diatone.
Features
- STM32F405RGT6 microcontroller
- MPU6000 IMU
- AT7456E OSD
- 4 UARTs
- 4 PWM outputs
Pinout
UART Mapping
The UARTs are marked Rn and Tn in the above pinouts. The Rn pin is the receive pin for UARTn. The Tn pin is the transmit pin for UARTn.
| Name | Pin | Function |
|---|---|---|
| SERIAL0 | COMPUTER | USB |
| SERIAL1 | PPM/RX1/SBUS/TX1 | UART1 (RC Input) |
| SERIAL2 | TX2/RX2 | UART2 (Empty) |
| SERIAL3 | TX3/RX3 | UART3 (Telem1) |
| SERIAL4 | TX4/RX4 | UART4 (Empty) |
| SERIAL6 | TX6/RX6 | UART6 (GPS) |
RC Input
RC input is configured on the PPM (UART1_RX) pin. It supports all RC protocols.
OSD Support
The Mamba F405 MK2 supports OSD using OSD_TYPE 1 (MAX7456 driver).
PWM Output
The Mamba F405 MK2 supports up to 4 PWM outputs. The pads for motor output ESC1 to ESC4 on the above diagram are for the 4 outputs. All 4 outputs support DShot as well as all PWM types.
The PWM are in one group.
Channels within the same group need to use the same output rate. If any channel in a group uses DShot then all channels in the group need to use DShot.
Battery Monitoring
The board has a builting voltage sensor. The voltage sensor can handle up to 6S LiPo batteries.
The correct battery setting parameters are:
- BATT_MONITOR 3
- BATT_VOLT_PIN 11
- BATT_VOLT_MULT around 11.0
- BATT_CURR_PIN 13
- BATT_CURR_MULT around 28 with the 20x20 40A ESC (calculated, needs to be verified)
Compass
The Mamba Basic flight controllers do not have a builting compass, but you can attach an external compass using I2C on the SDA and SCL pads.
Alternate settings
It is possible to set alternate configurations with the BRD_ALT_CONFIG parameter.
| BRD_ALT_CONFIG | RX1 function |
|---|---|
| ALT 0(default) | RCININT |
| ALT 1 | RX1/TX1 |
Loading Firmware
Initial firmware load can be done with DFU by plugging in USB with the bootloader button pressed. Then you should load the "with_bl.hex" firmware, using your favourite DFU loading tool.
Once the initial firmware is loaded you can update the firmware using any ArduPilot ground station software. Updates should be done with the *.apj firmware files.