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I2C SDA line is connected to a wrong Arduino Nano pin · Issue #1 · beast-devices/TougherPowerMonitor-HW · GitHub
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sensors - Connecting two Arduinos via I2C while I2C Pins A4/A5 are already in use - Arduino Stack Exchange
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Can't Get I2C to Work on an Arduino Nano? (Pinout Diagrams) | Arduino, Arduino projects, Arduino programming
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First Steps with the Arduino-UNO R3 and NANO | Maker, MakerED, MakerSpaces, Coding | How-To transform an LCD1602 SPI Sketch to an LCD1602 I2C Sketch | EDU: Digital CitiZENship, CyberSecurity, eSkills, Modern
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