# CircuitPython demo - I2C scan
# 
# If you run this and it seems to hang, try manually unlocking
# your I2C bus from the REPL with
# ` >>> import board `
# ` >>> board.I2C().unlock() `

import time
import board

i2c = board.I2C()

while not i2c.try_lock():
    pass

try:

    while True:
        print("I2C addresses found:", [hex(device_address)
            for device_address in i2c.scan()])
        time.sleep(2)

finally:  # unlock the i2c bus when ctrl-c'ing out of the loop
    i2c.unlock()