Getting Processor Temperature, Voltage, Frequencies, etc.

Like most processors, the Raspberry Pi provides a way to check its operating parameters. This uses a command vcgencmd run with various options such as the following examples run on a Raspberry Pi 3:

	vcgencmd measure_temp
	temp=51.5'C

	vcgencmd measure_volts
	volt=1.2000V

	vcgencmd measure_clock arm
	frequency(45)=600064000

	vcgencmd measure_clock core
	frequency(1)=250000000

	vcgencmd get_mem arm
	arm=880M

	vcgencmd get_mem gpu
	gpu=128M

	vcgencmd get_config int
	arm_freq=1200
	audio_pwm_mode=1
	config_hdmi_boost=5
	core_freq=400
	desired_osc_freq=0x36ee80
	disable_commandline_tags=2
	disable_l2cache=1
	force_eeprom_read=1
	force_pwm_open=1
	framebuffer_ignore_alpha=1
	framebuffer_swap=1
	gpu_freq=300
	hdmi_drive=2
	hdmi_force_cec_address=65535
	init_uart_clock=0x2dc6c00
	lcd_framerate=60
	over_voltage_avs=0x1cfde
	overscan_bottom=48
	overscan_left=48
	overscan_right=48
	overscan_top=48
	pause_burst_frames=1
	program_serial_random=1
	sdram_freq=450
	temp_limit=85
	

Some of these are settable in the /boot/config.txt file or using the sudo raspi-config command.


Last updated: July 12, 2016

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