I run this code ```# SPDX- | adafruit | Page 1

sage thorn Jan 23, 2024, 9:20 PM

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that looks like the example from the library:
https://github.com/adafruit/Adafruit_CircuitPython_ATECC/blob/main/examples/atecc_simpletest.py

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it's working here:

Adafruit CircuitPython 8.2.9 on 2023-12-06; Adafruit QT2040 Trinkey with rp2040
>>> import test
ATECC Serial:  0123A3B16C97546FEE
Random Value:  1016
ATECC Counter #1 Value:  bytearray(b'\x05\x00\x00\x00')
Appending to the digest...
Appending to the digest...
SHA Digest:  bytearray(b'\x03\x1e\xdd}Ae\x15\x93\xc5\xfe\\\x00o\xa5u+7\xfd\xdf\xf7\xbcN\x84:\xa6\xaf\x0c\x95\x0fK\x94\x06')
>>>

buoyant vigil Jan 23, 2024, 9:20 PM

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mmmh

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I don't know what's my problem here

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your libraries are in .py or .mpy ?

sage thorn Jan 23, 2024, 9:22 PM

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it's weird the address only showed up one output

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here's what i get:

Checking board.I2C()...ADDED.
Checking board.STEMMA_I2C()...ADDED.
Checking busio.I2C(board.GP1, board.GP0)...SKIPPED: 'module' object has no attribute 'GP1'
----------------------------------------
I2C SCAN
----------------------------------------
board.I2C() addresses found: ['0x60']
board.STEMMA_I2C() addresses found: ['0x60']
board.I2C() addresses found: ['0x60']
board.STEMMA_I2C() addresses found: ['0x60']

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which is expected, since board.I2C() and board.STEMMA_I2C() are the same on this board

buoyant vigil Jan 23, 2024, 9:22 PM

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I have the same addresses

sage thorn Jan 23, 2024, 9:23 PM

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you posted this earlier:

board.I2C() addresses found: []
board.STEMMA_I2C() addresses found: ['0x60']

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it didn't show up in the first scan

buoyant vigil Jan 23, 2024, 9:25 PM

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wait I scan on more time

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one

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sage thorn Jan 23, 2024, 9:28 PM

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you are using one of these cables to connect the ATECC to the Trinkey?
https://www.adafruit.com/product/4210

buoyant vigil Jan 23, 2024, 9:29 PM

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yes

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I tried with 2 atecc 608

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with 2 qt cable And 2 trinkey qt 2040

sage thorn Jan 23, 2024, 9:30 PM

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and the i2c scan has the same behavior with all configurations?

buoyant vigil Jan 23, 2024, 9:31 PM

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I didn't try the i2c scan with all configurations I will do that tomorrow

sage thorn Jan 23, 2024, 9:31 PM

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it could also be somehow power related, so maybe also try different USB ports

buoyant vigil Jan 23, 2024, 9:32 PM

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ok I will test each configuration in more detail tomorrow. Thanks for the help !

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I will let you know if it works or not

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I will sleep because I'm a French student and I need to be rested for tomorrow 😅

buoyant vigil Jan 24, 2024, 7:58 AM

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I have the same result with all configurations

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sage thorn Jan 24, 2024, 4:03 PM

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not sure, since can't recreate the behavior locally

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what happens if you run the example from the library?
https://github.com/adafruit/Adafruit_CircuitPython_ATECC/blob/main/examples/atecc_simpletest.py

buoyant vigil Feb 7, 2024, 3:54 PM

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Sorry for the long wait, I'm a student so I'm working on other projects ^^

buoyant vigil Feb 7, 2024, 3:55 PM

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sage thorn what happens if you run the example from the library? <https://github.com/adafru...

what do you mean about that ?

#I run this code ```# SPDX-