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Sensors don't connect on Multiplexer but do show up on i2c scanner - Networking, Protocols, and Devices - Arduino Forum
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12C scanner, identifies one device but not other three - Networking, Protocols, and Devices - Arduino Forum
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Troubleshoot tips please - Uno r3 with m5stack env iii connected to the i2c duplicate pins.. I2c scanner (ide 2.0.2>arduino uno>wire>i2c scanner) not reading the sensor addresses : r/arduino
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