RadiolinkPIX6 Flight Controller
Featuring STM32F7 cpu, vibration isolation of IMUs, redundant IMUs, integrated OSD chip, IMU heating, and DShot.
Specifications
- Processor
- 32-bit ARM Cortex M7 core with DPFPU - STM32F765VIT6
- 216 MHz/512 KB RAM/2 MB Flash
- 32-bit IOMCU co-processor - STM32F100
- 32KB FRAM - FM25V02A
- AT7456E OSD
- Sensors
- Bosh BMI088 IMU (accel, gyro)
- InvenSense ICM-42688 IMU (accel, gyro)
- SPA06 barometer
- IST8310 magnetometer
- Power
- SMBUS/I2C Power Module Inputs(I2C)
- voltage and current monitor inputs(Analog)
- Interfaces
- 16 PWM Outputs with independent power rail for external power source
- 5x UART serial ports, 2 with HW flow control
- Camera Input and Video Output
- PPM/SBUS input, DSM/SBUS input
- RSSI (PWM or voltage) input
- I2C, SPI, 2x CAN, USB
- 3.3V and 6.6V ADC inputs
- Buzzer and Safety Switch
- microSD card
- Dimensions
- Weight 80g
- Size 94mm x 51.5mm x 14.5mm
Connector assignments
Top View
Left View
Right View
Rear View
Pinouts
TELEM1, TELEM2 ports
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
TX(OUT) |
+3.3V |
| 3 |
RX(IN) |
+3.3V |
| 4 |
CTS |
+3.3V |
| 5 |
RTS |
+3.3V |
| 6 |
GND |
GND |
OSD
| Pin |
Signal |
Volt |
| 1 |
GND |
GND |
| 2 |
VOUT |
+3.3V |
| 3 |
VCC |
+5V |
| 4 |
GND |
GND |
| 5 |
VCC |
+5V |
| 6 |
VIN |
+3.3V |
I2C port
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
SCL |
+3.3V (pullups) |
| 3 |
SDA |
+3.3V (pullups) |
| 4 |
GND |
GND |
CAN1, CAN2 ports
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
CAN_H |
+12V |
| 3 |
CAN_L |
+12V |
| 4 |
GND |
GND |
GPS1 port
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
TX(OUT) |
+3.3V |
| 3 |
RX(IN) |
+3.3V |
| 4 |
SCL |
+3.3V |
| 5 |
SDA |
+3.3V |
| 6 |
GND |
GND |
GPS2 Port
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
TX(OUT) |
+3.3V |
| 3 |
RX(IN) |
+3.3V |
| 4 |
SCL |
+3.3V |
| 5 |
SDA |
+3.3V |
| 6 |
GND |
GND |
SPI
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
SPI_SCK |
+3.3V |
| 3 |
SPI_MISO |
+3.3V |
| 4 |
SPI_MOSI |
+3.3V |
| 5 |
!SPI_NSS1 |
+3.3V |
| 6 |
!SPI_NSS2 |
+3.3V |
| 7 |
DRDY |
+3.3V |
| 8 |
GND |
GND |
POWER1
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
VCC |
+5V |
| 3 |
CURRENT |
up to +3.3V |
| 4 |
VOLTAGE |
up to +3.3V |
| 5 |
GND |
GND |
| 6 |
GND |
GND |
POWER2
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
VCC |
+5V |
| 3 |
SCL |
+3.3V |
| 4 |
SDA |
+3.3V |
| 5 |
GND |
GND |
| 6 |
GND |
GND |
ADC 3.3V
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
ADC IN1 |
up to +3.3V |
| 3 |
GND |
GND |
| 4 |
ADC IN2 |
up to +3.3v |
| 5 |
GND |
GND |
ADC 6.6V
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
ADC IN |
up to 6.6V |
| 3 |
GND |
GND |
USB remote port
| Pin |
Signal |
Volt |
| 1 |
USB VDD |
+5V |
| 2 |
DM |
+3.3V |
| 3 |
DP |
+3.3V |
| 4 |
GND |
GND |
SWITCH
| Pin |
Signal |
Volt |
| 1 |
VCC |
+3.3V |
| 2 |
!IO_LED_SAFETY |
GND |
| 3 |
SAFETY |
GND |
Buzzer port
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
BUZZER- |
+5V |
Spektrum/DSM Port
| Pin |
Signal |
Volt |
| 1 |
VCC |
+3.3V |
| 2 |
GND |
GND |
| 3 |
Signal |
+3.3V |
Debug port
| Pin |
Signal |
Volt |
| 1 |
VCC |
+5V |
| 2 |
FMU_SWCLK |
+3.3V |
| 3 |
FMU_SWDIO |
+3.3V |
| 4 |
TX(UART7) |
+3.3V |
| 5 |
RX(UART7) |
+3.3V |
| 6 |
IO_SWCLK |
+3.3V |
| 7 |
IO_SWDIO |
+3.3V |
| 8 |
GND |
GND |
UART Mapping
- SERIAL0 -> USB
- SERIAL1 -> USART2 (Telem1) RTS/CTS pins, RX DMA capable
- SERIAL2 -> USART3 (Telem2) RTS/CTS pins, TX/RX DMA capable
- SERIAL3 -> USART1 (GPS1), TX/RX DMA capable
- SERIAL4 -> UART4 (GPS2), No DMA
- SERIAL5 -> UART7 (User), No DMA
RC Input
The RCIN pin, which by default is mapped to a timer input, can be used for all ArduPilot supported receiver protocols, except CRSF/ELRS and SRXL2 which require a true UART connection. However, FPort, when connected in this manner, will only provide RC without telemetry.
To allow CRSF and embedded telemetry available in Fport, CRSF, and SRXL2 receivers, a full UART, such as SERIAL1 (USART2) would need to be used for receiver connections. Below are setups using Serial6.
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.
OSD Support
The RadiolinkPIX6 support using its internal OSD using OSD_TYPE 1 (MAX7456 driver). External OSD support such as DJI or DisplayPort is supported using UART3 or any other free UART. See MSP OSD for more info.
PWM Output
The RadiolinkPIX6 supports up to 16 PWM outputs. All 16 outputs support all normal PWM output formats. All FMU outputs also support DShot.
The 8 FMU PWM outputs are in 4 groups:
- Outputs 1, 2, 3 and 4 in group1
- Outputs 5 and 8 in group2
- Outputs 6 and 7 in group3
FMU outputs within the same group need to use the same output rate and protocol. If any output in a group uses DShot then all channels in that group need to use DShot.
Battery Monitoring
The board has 2 dedicated power monitor ports with a 6 pin connector. One is the Analog power monitor(Power1), and the others is the I2C power monitor(Power2).
Power1 port(Analog)
The parameters should be set:
BATT_MONITOR =4
BATT_VOLT_PIN 2
BATT_CURR_PIN 5
BATT_VOLT_MULT 18
BATT_AMP_PERVLT 24
Power2 port(I2C)
The parameters should be set.:
Compass
The RadiolinkPIX6 has a built-in compass. Due to potential interference, the autopilot is usually used with an external I2C compass as part of a GPS/Compass combination.
Analog inputs
The RadiolinkPIX6 has 3 analog inputs, one 6V tolerant and two 3.3V tolerant
- ADC Pin12 -> ADC 6.6V Sense
- ADC Pin4 -> ADC IN1 3.3V Sense
- ADC Pin13 -> ADC IN2 3.3V Sense
- Analog 3.3V RSSI input pin = 103
Connectors
Unless noted otherwise all connectors are JST GH
66a2788663
