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| Original file line number | Diff line number | Diff line change |
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| #! /usr/bin/python3 | ||
| # | ||
| # Copyright (c) 2018 Warren J. Jasper <[email protected]> | ||
| # | ||
| # This library is free software; you can redistribute it and/or | ||
| # modify it under the terms of the GNU Lesser General Public | ||
| # License as published by the Free Software Foundation; either | ||
| # version 2.1 of the License, or (at your option) any later version. | ||
| # | ||
| # This library is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| # Lesser General Public License for more details. | ||
| # You should have received a copy of the GNU Lesser General Public | ||
| # License along with this library; if not, write to the Free Software | ||
| # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
|
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|
|
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| from usb_temp import * | ||
| import time | ||
| import sys | ||
| import fcntl | ||
| import os | ||
| import math | ||
|
|
||
| def toContinue(): | ||
| answer = input('Continue [yY]? ') | ||
| if (answer == 'y' or answer == 'Y'): | ||
| return True | ||
| else: | ||
| return False | ||
|
|
||
| def celsius2fahr(celsius): | ||
| return (celsius*9.0/5.0 + 32.) | ||
|
|
||
| def fahr2celsius(fahr): | ||
| return (fahr - 32.)*5.0/9.0 | ||
|
|
||
| def main(): | ||
| dev = usb_temp() # USB-TEMP | ||
| dev.DConfig(dev.DIO_DIR_OUT) | ||
| dev.DOut(0x0) | ||
|
|
||
| while True: | ||
| print("\nTesting USB-TEMP") | ||
| print("----------------") | ||
| print("Hit 'b' to blink LED") | ||
| print("Hit 'c' to calibrate"); | ||
| print("Hit 'd' to test digital I/O ") | ||
| print("Hit 'e' to exit") | ||
| print("Hit 'f' for burnout status"); | ||
| print("Hit 'g' to get serial number") | ||
| print("Hit 'i' for information") | ||
| print("Hit 'R' to reset"); | ||
| print("Hit 'r' to measure temperature (RTD)"); | ||
| print("Hit 'p' read the CJC"); | ||
| print("Hit 's' to get status"); | ||
| print("Hit 'S' to measure temperature (Semiconductor)"); | ||
| print("Hit 't' to measure temperature (Thermocouple)"); | ||
| print("Hit 'T' to measure temperature (Thermistor)"); | ||
| print("Hit 'x' to measure temperature (Thermocouple) multiple channels"); | ||
| ch = input('\n') | ||
|
|
||
| if ch == 'b': | ||
| dev.Blink() | ||
| elif ch == 'e': | ||
| dev.h.close() | ||
| exit(0) | ||
| elif ch == 'f': | ||
| print('Burnout status =', hex(dev.BurnoutStatus(0xf))) | ||
| elif ch == 'd': | ||
| print('Testing Digital Bit I/O') | ||
| print('Connect pins DIO0 through DIO3 <==> DIO4 through DIO7') | ||
| dev.DConfigBit(0,dev.DIO_DIR_OUT) | ||
| dev.DConfigBit(1,dev.DIO_DIR_OUT) | ||
| dev.DConfigBit(2,dev.DIO_DIR_OUT) | ||
| dev.DConfigBit(3,dev.DIO_DIR_OUT) | ||
| dev.DConfigBit(4,dev.DIO_DIR_IN) | ||
| dev.DConfigBit(5,dev.DIO_DIR_IN) | ||
| dev.DConfigBit(6,dev.DIO_DIR_IN) | ||
| dev.DConfigBit(7,dev.DIO_DIR_IN) | ||
| while True: | ||
| value = int(input('Enter number [0-f]: '),16) | ||
| dev.DBitOut(0, value & 0x1) | ||
| dev.DBitOut(1, value & 0x2) | ||
| dev.DBitOut(2, value & 0x4) | ||
| dev.DBitOut(3, value & 0x8) | ||
| value = dev.DBitIn(4) | dev.DBitIn(5) << 1 | dev.DBitIn(6) << 2 | dev.DBitIn(7) << 3 | ||
| print('The value you read is',hex(value)) | ||
| if toContinue() != True: | ||
| break | ||
| elif ch == 's': | ||
| print('Status = ', hex(dev.Status())) | ||
| elif ch == 'i': | ||
| print("Manufacturer: %s" % dev.h.get_manufacturer_string()) | ||
| print("Product: %s" % dev.h.get_product_string()) | ||
| print("Serial No: %s" % dev.h.get_serial_number_string()) | ||
| elif ch == 'p': | ||
| print('Reading CJC') | ||
| temperature = dev.AIn(dev.CJC0, 0) | ||
| print('CJC 0 =', format(temperature,'.2f'),'degrees Celsius or',format(celsius2fahr(temperature),'.2f'),'degrees Fahrenheit') | ||
| temperature = dev.AIn(dev.CJC1, 0) | ||
| print('CJC 1 =', format(temperature,'.2f'),'degrees Celsius or',format(celsius2fahr(temperature),'.2f'),'degrees Fahrenheit') | ||
| elif ch == 't': | ||
| chan = int(input('Select Channel [0-7]: ')) | ||
| dev.SetItem(int(chan/2), dev.SENSOR_TYPE, dev.THERMOCOUPLE) | ||
| dev.SetItem(int(chan/2), dev.EXCITATION, dev.EXCITATION_OFF) | ||
| print('Conect thermocouple to channel',chan) | ||
| t_type = input('Select Thermocouple type [JKSRBETN]: ') | ||
| if t_type == 'J': | ||
| t_type = dev.TC_TYPE_J | ||
| print('Type J thermocouple selected.') | ||
| elif t_type == 'K': | ||
| t_type = dev.TC_TYPE_K | ||
| print('Type K thermocouple selected.') | ||
| if t_type == 'S': | ||
| t_type = dev.TC_TYPE_S | ||
| print('Type S thermocouple selected.') | ||
| if t_type == 'R': | ||
| t_type = dev.TC_TYPE_R | ||
| print('Type R thermocouple selected.') | ||
| if t_type == 'B': | ||
| t_type = dev.TC_TYPE_B | ||
| print('Type B thermocouple selected.') | ||
| if t_type == 'E': | ||
| t_type = dev.TC_TYPE_E | ||
| print('Type E thermocouple selected.') | ||
| if t_type == 'T': | ||
| t_type = dev.TC_TYPE_T | ||
| print('Type T thermocouple selected.') | ||
| if t_type == 'N': | ||
| t_type = dev.TC_TYPE_N | ||
| print('Type N thermocouple selected.') | ||
| dev.SetItem(int(chan/2), chan%2+dev.CH_0_TC, t_type) | ||
| dev.Calibrate() | ||
| for i in range(20): | ||
| temperature = dev.AIn(chan,0) | ||
| print('Channel: ',chan, format(temperature,'.2f'),'degrees Celsius or',\ | ||
| format(celsius2fahr(temperature),'.2f'),'degrees Fahrenheit') | ||
| time.sleep(1) | ||
| elif ch == 'S': | ||
| print('Sampling Semiconductor TMP36') | ||
| chan = int(input('Enter channel number [0-7]: ')) | ||
| dev.SetItem(int(chan/2), dev.SENSOR_TYPE, dev.SEMICONDUCTOR) | ||
| print('\t\t 1. Single ended') | ||
| print('\t\t 2. Differential.') | ||
| connection_type = int(input('Enter connection type [1-2]: ')) | ||
| if connection_type == 1: | ||
| dev.SetItem(int(chan/2), dev.CONNECTION_TYPE, dev.SINGLE_ENDED) | ||
| else: | ||
| dev.SetItem(int(chan/2), dev.CONNECTION_TYPE, dev.DIFFERENTIAL) | ||
| offset = float(input('Enter Offset: ')) | ||
| scale = float(input('Enter slope (scale): ')) | ||
| dev.SetItem(int(chan/2), dev.EXCITATION, dev.EXCITATION_OFF) | ||
| dev.SetItem(int(chan/2), dev.CH_0_GAIN + chan%2, 0x1) # Set for Semiconductor | ||
| dev.SetItem(int(chan/2), dev.CH_0_COEF_0 + chan%2, offset) # Offset | ||
| value = dev.GetItem(int(chan/2), dev.CH_0_COEF_0 + chan%2) | ||
| print('Offset =', format(value,'.4f')) | ||
| dev.SetItem(int(chan/2), dev.CH_0_COEF_1 + chan%2, scale) # Scale factor | ||
| value = dev.GetItem(int(chan/2), dev.CH_0_COEF_1 + chan%2) | ||
| print('Scale Factor =', format(value,'.4f')) | ||
| flag = fcntl.fcntl(sys.stdin, fcntl.F_GETFL) | ||
| fcntl.fcntl(sys.stdin, fcntl.F_SETFL, flag|os.O_NONBLOCK) | ||
| while True: | ||
| temperature = dev.AIn(chan, 0) | ||
| print('Channel',chan,format(temperature,'.2f'),'degrees Celsius or',\ | ||
| format(celsius2fahr(temperature),'.2f'),'degrees Fahrenheit.') | ||
| time.sleep(1) | ||
| c = sys.stdin.readlines() | ||
| if (len(c) != 0): | ||
| break | ||
| fcntl.fcntl(sys.stdin, fcntl.F_SETFL, flag) | ||
| elif ch == 'r': | ||
| print('Sampling RTD') | ||
| chan = int(input('Enter channel number [0-7]: ')) | ||
| dev.SetItem(int(chan/2), dev.SENSOR_TYPE, dev.RTD) | ||
| print('\t\t 1. 2 - wire with 1 sensor.') | ||
| print('\t\t 2. 2 - wire with 2 sensor.') | ||
| print('\t\t 2. 3 - wire.') | ||
| print('\t\t 4. 4 - wire.') | ||
| rtd_type = int(input('Enter RTD type [1-4]: ')) | ||
| if rtd_type == 1: | ||
| dev.SetItem(int(chan/2), dev.CONNECTION_TYPE, dev.TWO_WIRE_ONE_SENSOR) | ||
| elif rtd_type == 2: | ||
| dev.SetItem(int(chan/2), dev.CONNECTION_TYPE, dev.TWO_WIRE_TWO_SENSOR) | ||
| elif rtd_type == 3: | ||
| dev.SetItem(int(chan/2), dev.CONNECTION_TYPE, dev.THREE_WIRE) | ||
| elif rtd_type == 4: | ||
| dev.SetItem(int(chan/2), dev.CONNECTION_TYPE, dev.FOUR_WIRE) | ||
| else: | ||
| print('Unknown value.') | ||
| break | ||
| R0 = 100. | ||
| A = 0.003908 | ||
| B = -5.8019e-7 | ||
| C = -4.2735e-12 | ||
| dev.SetItem(int(chan/2), dev.EXCITATION, dev.MU_A_210) | ||
| dev.SetItem(int(chan/2), dev.CH_0_GAIN + chan%2, 0x2) # Set 0 - 0.5V for RTD | ||
| dev.SetItem(int(chan/2), dev.CH_0_COEF_0 + chan%2, R0) # R0 value | ||
| value = dev.GetItem(int(chan/2), dev.CH_0_COEF_0 + chan%2) | ||
| print('R0 =',format(value,'.4f')) | ||
| dev.SetItem(int(chan/2), dev.CH_0_COEF_1 + chan%2, A) # Callendar-Van Dusen Coefficient A | ||
| value = dev.GetItem(int(chan/2), dev.CH_0_COEF_1 + chan%2) | ||
| print('A =',format(value,'.4f')) | ||
| dev.SetItem(int(chan/2), dev.CH_0_COEF_2 + chan%2, B) # Callendar-Van Dusen Coefficient B | ||
| value = dev.GetItem(int(chan/2), dev.CH_0_COEF_2 + chan%2) | ||
| print('B =',format(value,'.4e')) | ||
| dev.SetItem(int(chan/2), dev.CH_0_COEF_3 + chan%2, C) # Callendar-Van Dusen Coefficient C | ||
| value = dev.GetItem(int(chan/2), dev.CH_0_COEF_3 + chan%2) | ||
| print('C =',format(value,'.4e')) | ||
| flag = fcntl.fcntl(sys.stdin, fcntl.F_GETFL) | ||
| fcntl.fcntl(sys.stdin, fcntl.F_SETFL, flag|os.O_NONBLOCK) | ||
| while True: | ||
| temperature = dev.AIn(chan, 0) | ||
| print('Channel',chan,format(temperature,'.2f'),'degrees Celsius or',\ | ||
| format(celsius2fahr(temperature),'.2f'),'degrees Fahrenheit.') | ||
| time.sleep(1) | ||
| c = sys.stdin.readlines() | ||
| if (len(c) != 0): | ||
| break | ||
| fcntl.fcntl(sys.stdin, fcntl.F_SETFL, flag) | ||
|
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|
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|
|
||
| if __name__ == "__main__": | ||
| main() |
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