Sample program to read TI HDC1000EVM - Raspberry Pi Forums

here sample program in python2.x read texas instruments hdc1000evm

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import serial #sample program read texas instruments hdc1000evm #initialization , open port #possible timeout values:  #    1. none: wait forever, block call #    2. 0: non-blocking mode, return #    3. x, x bigger 0, float allowed, timeout block call ser = serial.serial()  #ser.port = "/dev/ttyusb0" #ser.port = "com4:" #ser.port = "/dev/ttyacm1" ser.port = "/dev/serial/by-path/platform-bcm2708_usb-usb-0:1.2:1.0" ser.baudrate = 115200 ser.bytesize = serial.eightbits #number of bits per bytes ser.parity = serial.parity_none #set parity check: no parity ser.stopbits = serial.stopbits_one #number of stop bits #ser.timeout = none          #block read #ser.timeout = 1           #non-block read ser.timeout = 2              #timeout block read ser.xonxoff = false     #disable software flow control ser.rtscts = false     #disable hardware (rts/cts) flow control ser.dsrdtr = false       #disable hardware (dsr/dtr) flow control ser.writetimeout = 2     #timeout write  try:     ser.open() except exception e:     print ("error open serial port: " + str(e))     exit() if ser.isopen():     try:         ser.flushinput() #flush input buffer, discarding contents         ser.flushoutput()#flush output buffer, aborting current output                          #and discard in buffer         #write data         ser.write(bytes(43))         numoflines = 0         while true:             response = ser.readline()             if (str(response).find(",") == -1):                 print("start data: " + str(response))             else:                 print("      temperature: " + str(("{0:.2f}".format(((float(int((str(response).split(',')[0]),16))/float(65536)) * 165) -40)))+ u"\u00b0" + "c")                 print("relative humidity: " + str(("{0:.2f}".format((float(int((str(response).split(',')[1]),16))/float(65536)) * 100)))+ "%")             numoflines = numoflines + 1             if (numoflines >= 100):                 ser.write(bytes(44))                 response = ser.readline()                 print("read data: " + str(response))                 break                 ser.close()     except exception e1:         print ("error " + str(e1))     ser.write(bytes(44))     response = ser.readline()     print("last data: " + str(response))     ser.close() else:     print ("cannot open serial port ")

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