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add code for busio setup

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This commit is contained in:
caternuson 2021-11-17 12:46:51 -08:00
parent d94fb1ee63
commit 0b4ebde8d0
2 changed files with 26 additions and 4 deletions
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14
CircuitPython_Essentials/CircuitPython_I2C_Scan/code.py
View file

@ -1,4 +1,4 @@
"""CircuitPython Essentials I2C Scan example"""
"""CircuitPython I2C Device Address Scan"""
# If you run this and it seems to hang, try manually unlocking
# your I2C bus from the REPL with
# >>> import board
@ -7,15 +7,23 @@
import time
import board
# To use default I2C bus (most boards)
i2c = board.I2C()
# To create I2C bus on specific pins
# import busio
# i2c = busio.I2C(board.SCL1, board.SDA1) # QT Py RP2040 STEMMA connector
# i2c = busio.I2C(board.GP1, board.GP0) # Pi Pico RP2040
while not i2c.try_lock():
pass
try:
while True:
print("I2C addresses found:", [hex(device_address)
for device_address in i2c.scan()])
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

16
CircuitPython_Templates/i2c_scan/code.py
View file

@ -1,15 +1,29 @@
"""CircuitPython I2C Device Address 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
# To use default I2C bus (most boards)
i2c = board.I2C()
# To create I2C bus on specific pins
# import busio
# i2c = busio.I2C(board.SCL1, board.SDA1) # QT Py RP2040 STEMMA connector
# i2c = busio.I2C(board.GP1, board.GP0) # Pi Pico RP2040
while not i2c.try_lock():
pass
try:
while True:
print("I2C addresses found:", [hex(device_address) for device_address in i2c.scan()])
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