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setSampleInterval.py
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setSampleInterval.py
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# adapted from UPSPlus upsPlus.py script by [email protected]
import os
import sys
import smbus2
# Define I2C bus
DEVICE_BUS = 1
# Define device i2c slave address.
DEVICE_ADDR = 0x17
print("-"*60)
print("Modify sample interval in UPS Plus")
print("-"*60)
SAMPLEINTERVAL_MINI_min = 2
SAMPLEINTERVAL_MAX_min = 120
# Raspberry Pi Communicates with MCU via i2c protocol.
bus = smbus2.SMBus(DEVICE_BUS)
current_sample_interval_min = bus.read_byte_data(DEVICE_ADDR, 0x16) << 8 | bus.read_byte_data(DEVICE_ADDR, 0x15)
print(f"Current value: {current_sample_interval_min} min")
if len(sys.argv) > 1:
try:
given_si_min = int(sys.argv[1])
if given_si_min >= SAMPLEINTERVAL_MINI_min and given_si_min <= SAMPLEINTERVAL_MAX_min :
bus.write_byte_data(DEVICE_ADDR, 0x15, given_si_min & 0xFF)
bus.write_byte_data(DEVICE_ADDR, 0x16, 0)
print(f"Successfully set the sample interval to: {given_si_min} min")
else:
errMsg = f"Sample interval should be given between {SAMPLEINTERVAL_MINI_min:.0f} and {SAMPLEINTERVAL_MAX_min:.0f} min"
print(errMsg)
except Exception as exc:
print(f"Incorrect parameter: {sys.argv[1]}. ({str(exc)})")
else:
print(f"Usage: {sys.argv[0]} <sample_interval_in_min>")
print(f"<sample_interval_in_min> between {SAMPLEINTERVAL_MINI_min:.0f} and {SAMPLEINTERVAL_MAX_min:.0f}")