tpow 0.2.0

适配器/传感器/设备

• USB9097 (1-wire adater with Vcc supply, PCsensor.com ShenZhen/China)
• DS18B20, DS2438 (Dallas/Maxim)
• Humidity Sensor HIH-5030 + DS2438Z+ (TaaraLabs Estonia)

用法

检查包含一些测试的examples/文件夹。 pip tpow将在Lib/site-packages/tpow下安装它。 如果找不到examples/，请下载源包*.tar.gz并进行检查。

获取romid（总线上的一个1线设备）

import tpow.usb9097

bus = tpow.usb9097.USB9097('COM3')
bus.cmd_reset()        # 0xE3, 0xC1
bus.dat_write([0x33])  # read-rom
ans = bus.dat_read(8) # little-endian (family + SN[6] + CRC)
print(['%02X'%ord(a) for a in reversed(ans)]) # big-endian

获取所有romid（搜索总线上的所有rom）

import tpow.usb9097

bus = tpow.usb9097.USB9097('COM3')
xx = tpow.usb9097.search_roms(bus)
for x in xx:
    print(x)

获取温度/DS18B20

import tpow.usb9097
import tpow.device
import tpow.sensor

bus = tpow.usb9097.USB9097('COM3')

# do temperature conversion and get scratch-pad
spad = tpow.device.ds18b20_skip_rom(bus)

# decode temperature
t = tpow.sensor.ds18b20_temp(spad)

print("SPAD : " + " ".join(['%02X' % ord(a) for a in spad]))
print("%8.3f [degC]" % t)

待办事项

• check temperature conversion completed status. (currently, wait 1 sec for each temperature conversion)
• check operation finished status bit.
• check CRC.
• refine data type of parameters (bytes, string, list of single bytes…)

许可证

Copyright (c) 2018 Kenich SHIRAKAWA This is licensed under MIT license. See Licence.txt for more information.

链接

1-wire adapter USB9097 (PCsensor)

Humidity Senosr (TaaraLabs)