How to Scan and Detect I2C Addresses - Adafruit Industries
https://cdn-learn.adafruit.com/downloads/pdf/scanning-i2c-addresses.pdf
WEBMar 8, 2024 · OK, let's get into how to perform an I2C address scan. While simple, the exact process is unique depending on what platform you are using. The following sections detail the process for the main scenarios of interest - Arduino, CircuitPython, and Raspberry Pi. Arduino There is an excellent I2C scanner sketch available from the old Arduino ...
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