# Using 'SparkFun Qwiic Shield for Arduino Nano' for 5v Nano

**URL:** <https://community.sparkfun.com/t/using-sparkfun-qwiic-shield-for-arduino-nano-for-5v-nano/41580>\
**Category:** Qwiic System\
**Tags:** qwiic\
**Created:** [February 20, 2021, 1:22am UTC](https://community.sparkfun.com/t/using-sparkfun-qwiic-shield-for-arduino-nano-for-5v-nano/41580 "2021-02-20T01:22:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![c3pop](https://avatars.discourse-cdn.com/v4/letter/c/f04885/32.png) [@c3pop](https://community.sparkfun.com/u/c3pop)\
**Post date:** [February 20, 2021, 1:22am UTC](https://community.sparkfun.com/t/using-sparkfun-qwiic-shield-for-arduino-nano-for-5v-nano/41580/1 "2021-02-20T01:22:55Z")

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I’m wondering I can use my **5v Arduino Nano** with Qwiic devices designed for **3.3v SDA/SCL**.

I know ‘SparkFun Qwiic Shield for Arduino Nano’ has a jumper for **5v Arduino** , but is it for Qwiic devices designed for **5v SDA/SCL**?

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**Author:** ![c3pop](https://avatars.discourse-cdn.com/v4/letter/c/f04885/32.png) [@c3pop](https://community.sparkfun.com/u/c3pop)\
**Post date:** [February 22, 2021, 8:36pm UTC](https://community.sparkfun.com/t/using-sparkfun-qwiic-shield-for-arduino-nano-for-5v-nano/41580/2 "2021-02-22T20:36:47Z")

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Similar discussions for 5V Arduino with 3.3V I2C devices:

- I2C Bus with 3.3v and 5.0v Device \<[https://forum.arduino.cc/index.php?topic=116345.0](https://forum.arduino.cc/index.php?topic=116345.0)\>

- 3.3V Sensors for I2C with Mega 2560 Rev 3 \<[https://forum.arduino.cc/index.php?topic=574509.0](https://forum.arduino.cc/index.php?topic=574509.0)\>

- Three 3.3V sensors using I2C on Mega2560 \<[https://www.reddit.com/r/arduino/commen … \_mega2560/](https://www.reddit.com/r/arduino/comments/9ousm4/three_33v_sensors_using_i2c_on_mega2560/)\>

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<div class="post-metadata">

**Author:** ![c3pop](https://avatars.discourse-cdn.com/v4/letter/c/f04885/32.png) [@c3pop](https://community.sparkfun.com/u/c3pop)\
**Post date:** [February 24, 2021, 7:02pm UTC](https://community.sparkfun.com/t/using-sparkfun-qwiic-shield-for-arduino-nano-for-5v-nano/41580/3 "2021-02-24T19:02:01Z")

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After examining the hook up guide for ‘SparkFun Qwiic Shield for Arduino Nano’, I recognize the shield is exactly what I need. It has a logic shifting circuit that provides proper signal to Qwiic’s 3.3V SDA/SCL even though Arduino’s I/O level is 5V. The jumper for 5V is just select the level of the Arduino side but not for Qwiic side.

Reference:

- SparkFun Qwiic Shield for Arduino Nano Hookup Guide

Logic Shifting Circuit and IOREF Jumper

\<[https://learn.sparkfun.com/tutorials/sp … okup-guide](https://learn.sparkfun.com/tutorials/sparkfun-qwiic-shield-for-arduino-nano-hookup-guide)\>

- Schematic (PDF)

\<[https://cdn.sparkfun.com/assets/b/b/8/5 … o\_Nano.pdf](https://cdn.sparkfun.com/assets/b/b/8/5/6/Qwiic_Shield_Arduino_Nano.pdf)\>