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README.md
PixFlamingo-F767 Flight Controller
The PixFlamingo-F767 is a flight controller produced by Dheeran Labs. Contact dheeranlabs@gmail.com for sales
Features
Processor
STM32F767 32-bit processor
Onboard Flash: 2048Mbits
Sensors
Two IMU : ICM42670, MPU6500/ICM20602 Acc/Gyro
One Baro : Internal MS5611/BMP280/DPS310 SPI barometer
Internal LIS3MDL Compass
Power
5v input voltage with voltage monitoring
Interfaces
10x PWM outputs
1x RC input
5x UARTs/serial for GPS and other peripherals
2x I2C ports for external compass, airspeed, etc.
microSD card slot port
Internal RGB LED
Safety switch port
Buzzer port
USB-C port
Connectors
POWER ADC
| Pin | Signal | Volt |
|---|---|---|
| 1 | VCC_IN | +5V |
| 2 | VCC_IN | +5V |
| 3 | BAT_CRRENT_ADC | +3.3V |
| 4 | BAT_VOLTAGE_ADC | +3.3V |
| 5 | GND | GND |
| 6 | GND | GND |
TELEM1
| Pin | Signal | Volt |
|---|---|---|
| 1 | VCC | +5V |
| 2 | UART_TX3 | +3.3V |
| 3 | UART_RX3 | +3.3V |
| 4 | CTS | +3.3V |
| 5 | RTS | +3.3V |
| 6 | GND | GND |
TELEM2
| Pin | Signal | Volt |
|---|---|---|
| 1 | VCC | +5V |
| 2 | UART_TX6 | +3.3V |
| 3 | UART_RX6 | +3.3V |
| 4 | X | X |
| 5 | X | X |
| 6 | GND | GND |
GPS1
| Pin | Signal | Volt |
|---|---|---|
| 1 | VCC | +5V |
| 2 | UART_TX1 | +3.3V |
| 3 | UART_RX1 | +3.3V |
| 4 | I2C2_SCL | +3.3V |
| 5 | I2C2_SDA | +3.3V |
| 6 | GND | GND |
SERIAL5
| Pin | Signal | Volt |
|---|---|---|
| 1 | VCC | +5V |
| 2 | UART_TX7 | +3.3V |
| 3 | UART_RX7 | +3.3V |
| 4 | X | X |
| 5 | GND | GND |
SERIAL6, GPIO
| Pin | Signal | Volt |
|---|---|---|
| 1 | VCC | +5V |
| 2 | USART_TX2 | +3.3V |
| 3 | USART_RX2 | +3.3V |
| 4 | GPIO | +3.3V |
| 5 | GND | GND |
SAFETY
| Pin | Signal | Volt |
|---|---|---|
| 1 | SAFETY_SW | +3.3V |
| 2 | SAFETY_SW_LED | +3.3V |
| 3 | 3V3_OUT | +3.3V |
| 4 | BUZZER+ | +3.3V |
| 5 | BUZZER- | GND |
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.
- SERIAL0 -> USB (OTG1)
- SERIAL1 -> UART3 (TELEM1) with CTS/RTS DMA Enabled
- SERIAL2 -> UART6 (TELEM2) with DMA Enabled
- SERIAL3 -> UART1 (GPS1) Tx(NODMA), Rx(DMA Enabled)
- SERIAL4 -> EMPTY
- SERIAL5 -> UART7 (User) NODMA
- SERIAL6 -> USART2 (User) NODMA
RC Input
Supports I-Bus/S-bus
Any UART can be used for RC system connections in ArduPilot also, and is compatible with all protocols except PPM. See Radio Control Systems for details.
PWM Output
The PixFlaminog-F767 supports up to 10 PWM outputs.
The PWM is in 5 groups:
- PWM 1-4 in group1
- PWM 5-8 in group2
- PWM 9 in group3
- PWM 10 in group4
GPIOs
All 10 PWM channels can be used for GPIO functions (relays, buttons, RPM etc).
The pin numbers for these PWM channels in ArduPilot are shown below:
| PWM Channels | Pin | PWM Channels | Pin |
|---|---|---|---|
| PWM1 | 50 | PWM8 | 57 |
| PWM2 | 51 | PWM9 | 58 |
| PWM3 | 52 | PWM10 | 59 |
| PWM4 | 53 | ||
| PWM5 | 54 | ||
| PWM6 | 55 | ||
| PWM7 | 56 |
Analog inputs
The PixFlamingo-F767 flight controller has 4 analog inputs
- ADC Pin10 -> Battery Current
- ADC Pin11 -> Battery Voltage
- ADC Pin14 -> ADC 3V3 Sense
- ADC Pin15 -> ADC 6V6 Sense
Battery Monitor Configuration
The board has voltage and current sensor inputs on the POWER_ADC connector.
The correct battery setting parameters are:
Enable Battery monitor.
BATT_MONITOR =4
Then reboot.
BATT_VOLT_PIN 11
BATT_CURR_PIN 10
BATT_VOLT_MULT 10.1 (may need adjustment if supplied monitor is not used)
BATT_AMP_PERVLT 17.0 (may need adjustment if supplied monitor is not used)
Build the FC
./waf configure --board=PixFlamingo-F767 ./waf copter
The compiled firmware is located in folder "build/PixFlamingo-F767/bin/arducopter.apj".
Loading Firmware
The PixFlamingo-F767 flight controller comes pre-installed with an ArduPilot compatible bootloader, allowing the loading of *.apj firmware files with any ArduPilot compatible ground station.