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Copy file name to clipboardExpand all lines: content/hardware/03.nano/boards/nano-r4/tutorials/01.user-manual/content.md
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@@ -1782,7 +1782,8 @@ Understanding the voltage differences between the Nano R4's I2C interfaces is i
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When you need to connect +3.3 VDC I2C devices to your Nano R4 board, you have three main options to ensure safe and reliable operation:
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1.**Use the Qwiic connector `Wire1`**: This is the simplest solution as it provides automatic level translation and +3.3 VDC power supply for your devices
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2.**Add an external level shifter**: Bi-directional I2C level translators like the [SparkFun Logic Level Converter (BOB-12009)](https://www.sparkfun.com/sparkfun-logic-level-converter-bi-directional.html) or the [Adafruit 4-Channel I2C-Safe Bi-directional Logic Level Converter (BSS138)](https://www.adafruit.com/product/757?srsltid=AfmBOooBmZcnxzoJwaCE71c-99yErGo2MUVN5lnBUQGLgTIkESqr--Ya) can safely convert between +5 VDC and +3.3 VDC logic levels
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2.**Add an external level shifter**: Bi-directional I2C level translators like the [SparkFun Logic Level Converter (BOB-12009)](https://www.sparkfun.com/sparkfun-logic-level-converter-bi-directional.html) or the [Adafruit 4-Channel I2C-Safe Bi-directional Logic Level Converter (BSS138)](https://www.adafruit.com/product/757) can safely convert between +5 VDC and +3.3 VDC logic levels
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3.**Use +5 VDC-compatible sensors**: Select I2C devices specifically designed to operate at +5 VDC to avoid any compatibility issues
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