get the current status of the Qwiic Relay. The relay responds
with a 1 for on and a 0 for off.
Default Qwiic relay address is 0x18.
"""
from time import sleep
import board
import busio
import sparkfun_qwiicrelay
# Create bus object using our board's I2C port
i2c = busio.I2C(board.SCL, board.SDA)
# Create relay object
relay = sparkfun_qwiicrelay.Sparkfun_QwiicRelay(i2c)
print('Qwiic Relay Example 4 Get Relay Status')
# Check if connected
if relay.connected:
print('Relay connected.')
else:
print('Relay does not appear to be connected. Please check wiring.')
exit()
print('Type Ctrl-C to exit program.')
try:
while True:
relay.relay_on()
try:
# check to see if hex or decimal arguement
if '0x' in sys.argv[1]:
i2c_address = int(sys.argv[1], 16)
else:
i2c_address = int(sys.argv[1])
except ValueError:
print('Ignoring invalid arguement: ' + str(sys.argv[1]))
# Show the initial address
print('Current i2c address = ' + str(i2c_address)
+ ' [' + hex(i2c_address) + ']')
# Create library object using our Bus I2C port
i2c = busio.I2C(board.SCL, board.SDA)
relay = sparkfun_qwiicrelay.Sparkfun_QwiicRelay(i2c, i2c_address)
if relay.connected:
print('Qwiic Relay Example.')
else:
# if we can't connecct, something is wrong so just quit
print('Relay does not appear to be connected. Please check wiring.')
exit()
print('Address: ' + str(i2c_address) + ' [' + hex(i2c_address) + ']')
text = input('Enter a new I2C address (as a decimal from 8 to 119 or hex 0x08 to 0x77):')
# check to see if hex or decimal value
if '0x' in text:
new_address = int(text, 16)