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→Temperature sensor
# H618 has a total of 4 temperature sensors, the command to view the temperature is as follows:
::{| class="wikitable" style="background-color:#ffffdc;width:800px;" |-| <big>'''The displayed temperature value needs to be divided by 1000, the unit is Celsius.'''</big>|}
<ol style="list-style-type: lower-alpha;">
<li>sensor0: CPU temperature sensor, the first command is used to view > the type of temperature sensor, and the second command is used to > view the value of the temperature sensor</li></ol>
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orangepi@orangepi:~$ '''cat /sys/class/thermal/thermal_zone0/type'''
'''57734'''
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<ol start="2" style="list-style-type: lower-alpha;">
<li><p>sensor1: DDR temperature sensor, the first command is used to view > the type of temperature sensor, and the second command is used to > view the value of the temperature sensor</p>
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<p>orangepi@orangepi:~$ '''cat /sys/class/thermal/thermal_zone1/type'''</p>
<p>'''ddr'''_thermal_zone</p>
<p>orangepi@orangepi:~$ '''cat /sys/class/thermal/thermal_zone1/temp'''</p>
<p>'''57410'''</p>|}</li>
<li><p>sensor2: GPU temperature sensor, the first command is used to view > the type of temperature sensor, the second command is used to view > the value of the temperature sensor</p>
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<p>orangepi@orangepi:~$ '''cat /sys/class/thermal/thermal_zone2/type'''</p>
<p>'''gpu'''_thermal_zone</p>
<p>orangepi@orangepi:~$ '''cat /sys/class/thermal/thermal_zone2/temp'''</p>
<p>'''59273'''</p>|}</li>
<li><p>sensor3: VE temperature sensor, the first command is used to view > the type of temperature sensor, and the second command is used to > view the value of the temperature sensor</p>
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<p>orangepi@orangepi:~$ '''cat /sys/class/thermal/thermal_zone3/type'''</p>
<p>'''ve'''_thermal_zone</p>
<p>orangepi@orangepi:~$ '''cat /sys/class/thermal/thermal_zone3/temp'''</p>
<p>'''58949'''</p>|}</li></ol>
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<li>The system with Linux6.1 kernel can also use the '''sensors''' command to view the current temperature of the system</li></ol>
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orangepi@orangepi:~$ '''sensors'''
Adapter: Virtual device
temp1: +'''<span style="color:#FF0000">47.4°C</span>''' (crit = +110.0°C)
gpu_thermal-virtual-0
Adapter: Virtual device
temp1: +'''<span style="color:#FF0000">48.7°C</span>''' (crit = +110.0°C)
ddr_thermal-virtual-0
Adapter: Virtual device
temp1: +'''<span style="color:#FF0000">47.8°C</span>''' (crit = +110.0°C)
ve_thermal-virtual-0
Adapter: Virtual device
temp1: +'''<span style="color:#FF0000">47.2°C</span>''' (crit = +110.0°C)|}
<span id="pin-description-of-the-pin-expansion-board-interface"></span>
== 13 Pin Description of the Pin Expansion Board Interface ==