Adafruit_Learning_System_Gu.../CircuitPython_Essentials/CircuitPython_I2C_Scan.py
2020-08-13 07:15:01 -04:00

24 lines
510 B
Python

# 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()