PX4-Autopilot/docs/en/msg_docs/SystemPower.md

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SystemPower (UORB message)

TOPICS: system_power

Fields

Name	Type	Unit [Frame]	Range/Enum	Description
timestamp	uint64			time since system start (microseconds)
voltage5v_v	float32			peripheral 5V rail voltage
voltage_payload_v	float32			payload rail voltage
sensors3v3	float32[4]			Sensors 3V3 rail voltage
sensors3v3_valid	uint8			Sensors 3V3 rail voltage was read (bitfield).
usb_connected	uint8			USB is connected when 1
brick_valid	uint8			brick bits power is good when bit 1
usb_valid	uint8			USB is valid when 1
servo_valid	uint8			servo power is good when 1
periph_5v_oc	uint8			peripheral overcurrent when 1
hipower_5v_oc	uint8			high power peripheral overcurrent when 1
comp_5v_valid	uint8			5V to companion valid
can1_gps1_5v_valid	uint8			5V for CAN1/GPS1 valid
payload_v_valid	uint8			payload rail voltage is valid

Constants

Name	Type	Value	Description
BRICK1_VALID_SHIFTS	uint8	0
BRICK1_VALID_MASK	uint8	1
BRICK2_VALID_SHIFTS	uint8	1
BRICK2_VALID_MASK	uint8	2
BRICK3_VALID_SHIFTS	uint8	2
BRICK3_VALID_MASK	uint8	4
BRICK4_VALID_SHIFTS	uint8	3
BRICK4_VALID_MASK	uint8	8

Source Message

Source file (GitHub)

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uint64 timestamp		# time since system start (microseconds)
float32 voltage5v_v		# peripheral 5V rail voltage
float32 voltage_payload_v	# payload rail voltage
float32[4] sensors3v3		# Sensors 3V3 rail voltage
uint8 sensors3v3_valid		# Sensors 3V3 rail voltage was read (bitfield).
uint8 usb_connected		# USB is connected when 1
uint8 brick_valid		# brick bits power is good when bit 1
uint8 usb_valid 		# USB is valid when 1
uint8 servo_valid		# servo power is good when 1
uint8 periph_5v_oc		# peripheral overcurrent when 1
uint8 hipower_5v_oc		# high power peripheral overcurrent when 1
uint8 comp_5v_valid		# 5V to companion valid
uint8 can1_gps1_5v_valid	# 5V for CAN1/GPS1 valid
uint8 payload_v_valid		# payload rail voltage is valid

uint8 BRICK1_VALID_SHIFTS=0
uint8 BRICK1_VALID_MASK=1
uint8 BRICK2_VALID_SHIFTS=1
uint8 BRICK2_VALID_MASK=2
uint8 BRICK3_VALID_SHIFTS=2
uint8 BRICK3_VALID_MASK=4
uint8 BRICK4_VALID_SHIFTS=3
uint8 BRICK4_VALID_MASK=8

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