Pixracer R15
PixRacer has all the capabilities of the original Pixhawk (including version 2) and even more! It is optimized in size and has just about the right amount of inputs/outputs that allow you to switch from a full-enriched autopilot stack system (with auto landing and full navigation) to a high-performance racing platform.
R15 has an updated accelerometer/gyro, magnetometer, and is ROHS (Lead Free). It also includes an ESP8266 for easy WiFi updates and comes with the latest Ardupilot ESP8266 firmware developed by Andrew Tridge. This new firmware has a nice web interface, MavLink2 support, and an easier way to do future updates via the web interface.
The Pixracer is the first autopilot of the FMUv4 Pixhawk generation. It comes with a small Wifi extension board.
Overview
The Pixracer is the common name for the FMUv4 generation of Pixhawk autopilots. It has been designed primarily for the demanding requirements of small multicopters, but of course can be used on planes and other vehicles which require no more than 6 pwm outputs for controlling escs and motors.
Tip
At time of writing the autopilot is still being evolved/improved. The final version may very slightly from the information provided here.
This video below provides a detailed overview of the board. Additional information can be found on pixhawk.org
Specifications
Specifications mRo PixRacer R15
Main Processor 32-bit STM32F427 Cortex M4 core with FPU rev.3 168 MHz
IO Processor No
RAM 256 KB RAM
Flash 2 MB FRAM
Crypto / Hash Processor No
Accelerometers / Gyros / Mags 2 / 2 / 2
Sensors Invensense/TDK ICM-20602 (6DOF)
Invensense/TDK MPU-9250 (9DOF)
Sensors – Dampened None
Internal Magnetometer AK8963 inside MPU-9250 and ST LIS3MDL
Barometer MEAS MS5611
Interfaces and Protocols 5x UART (serial ports)
2x with HW flow control and GPS+I2C®].
1x PPM sum input signal
6x PWM outputs
1x RSSI (PWM or voltage) input
1x I2C
1x SPI
1x CAN
1x JTAG (Debuging & programming interface)
8x OneShot PWM output (Configurable)
1x External microUSB port
Dronecode Debug connector.
WiFi Telemetry & firmware update via ESP8266 (Included).
JST-GH connectors using Dronecode connector standard.
Supported RC input protocols:
Spektrum DSM / DSM2 / DSM-X® Satellite compatible input up to DX9 and above.
Futaba S.BUS® & S.BUS2® compatible input.
FRSky Telemetry port output.
Graupner SUMD.Yuneec ST24.
Connectors -JST GH series connectors
-Servo Header
-Onboard MicroUSB-
2x 5 header (Esp-01)
Pin Headers Yes
Conformal Coating Available
Extended Testing and Burn In No
Custom Carrier Board Support No
LED Yes
Dimensions Width: 36mm (1.42”)Length: 36mm (1.42”)
Weight 10.54g (.37 oz)
Mounting Holes 30mm x 30mm (1.18″x1.18″)
Protector Case Optional
Typical Platforms -Multirotor
-Rover
-Fixed-Wing
-Boats
-Submarines
-VTOL
-Automatic Tractors
-Others
Connector pin assignments
Unless noted otherwise all connectors are JST GH
TELEM1, TELEM2+OSD ports
Pin Signal Volt
1 (red) VCC +5V
2 (blk) TX (OUT) +3.3V
3 (blk) RX (IN) +3.3V
4 (blk) CTS (IN) +3.3V
5 (blk) RTS (OUT) +3.3V
6 (blk) GND GND
GPS port
PIN SIGNAL VOLT
1 (red) VCC +5V
2 (blk) TX (OUT) +3.3V
3 (blk) RX (IN) +3.3V
4 (blk) I2C1 SCL +3.3V
5 (blk) I2C1 SDA +3.3V
6 (blk) GND GND
FrSky Telemetry / SERIAL4
PIN SIGNAL VOLT
1 (red) VCC +5V
2 (blk) TX (OUT) +3.3V
3 (blk) RX (IN) +3.3V
4 (blk) GND GND
RC Input (accepts PPM / S.BUS / Spektrum / SUMD / ST24)
PIN SIGNAL VOLT
1 (red) VCC +5V
2 (blk) RC IN +3.3V
3 (blk) RSSI IN +3.3V
4 (blk) VDD 3V3 +3.3V
5 (blk) GND GND
CAN
PIN SIGNAL VOLT
1 (red) VCC +5V
2 (blk) CAN_H +12V
3 (blk) CAN_L +12V
4 (blk) GND GND
Power
PIN SIGNAL VOLT
1 (red) VCC +5V
2 (blk) VCC +5V
3 (blk) CURRENT +3.3V
4 (blk) VOLTAGE +3.3V
5 (blk) GND GND
6 (blk) GND GND
Switch
PIN SIGNAL VOLT
1 (red) SAFETY GND
2 (blk) !IO_LED_SAFETY GND
3 (blk) CURRENT +3.3V
4 (blk) BUZZER- –
5 (blk) BUZZER+ –
Debug port (JST SM06B connector)
PIN SIGNAL VOLT
1 (red) VCC TARGET SHIFT +3.3V
2 (blk) CONSOLE TX (OUT) +3.3V
3 (blk) CONSOLE RX (IN) +3.3V
4 (blk) SWDIO +3.3V
5 (blk) SWCLK +3.3V
6 (blk) GND GND