comparison: analgauge.py
analgauge.py
- changeset 1
- 31032bc7b0e6
- child 4
- 99a5439f349f
equal
deleted
inserted
replaced
| 0:9e9b2c78bd31 | 1:31032bc7b0e6 |
|---|---|
| 1 import usb.core | |
| 2 from psutil import cpu_percent | |
| 3 | |
| 4 VALUE_MIN = 0x00 | |
| 5 VALUE_MAX = 0x88 | |
| 6 | |
| 7 VENDOR_ID = 0x16c0 | |
| 8 PRODUCT_ID = 0x05df | |
| 9 | |
| 10 class AnalGauge: | |
| 11 def __init__(self): | |
| 12 self.dev = usb.core.find( | |
| 13 idVendor = VENDOR_ID, | |
| 14 idProduct = PRODUCT_ID | |
| 15 ) | |
| 16 | |
| 17 def update(self, d): | |
| 18 try: | |
| 19 data = [int(d)] | |
| 20 result = self.dev.ctrl_transfer( | |
| 21 0x21, 0x9, | |
| 22 wValue = 0x200, wIndex = 0x00, | |
| 23 data_or_wLength = data | |
| 24 ) | |
| 25 except usb.core.USBError, e: | |
| 26 self.dev.detach_kernel_driver(0) | |
| 27 print(e) | |
| 28 | |
| 29 if __name__ == "__main__": | |
| 30 g = AnalGauge() | |
| 31 while True: | |
| 32 pct = cpu_percent(interval=1) | |
| 33 g.update((VALUE_MAX * pct)/100) |
