检测CPU的负荷,并通过不同颜色LED进行指示。
使用的硬件和软件:
- Bolt IoT Bolt WiFi Module
- LED
- Bolt IoT Bolt Cloud
- Bolt IoT Android App
- VMware Software
如果CPU过载,则红色LED点亮并发出警报; 如果CPU负荷较低,则绿色LED 点亮。通过这些指示,我们可以了解CPU的压力等级。
原理图
PC端代码
代码: 全选
import psutil
from boltiot import Bolt
api_key = "YOUR_API_KEY"
d_id = "YOUR_DEVICE_ID"
cpu_red_threshold = 0.4
client= Bolt(api_key, d_id)
#interval in seconds to check cpu usage
interval = 5
def control_green_led(pin, value):
response = client.digitalWrite(pin, value)
def control_red_led(pin, value):
response = client.digitalWrite(pin, value)
while True:
cpu_usage = psutil.cpu_percent(interval = interval)
print("CPU usage is"),cpu_usage
if cpu_usage > cpu_red_threshold:
control_green_led('0','LOW')
control_red_led('1', 'HIGH')
control_red_led('2', 'LOW')
else:
control_green_led('0', 'HIGH')
control_red_led('1', 'LOW')