PixFlamingo-F767 Flight Controller

The PixFlamingo-F767 is a flight controller produced by Dheeran Labs. Contact [email protected] 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.