# Qwiic compatible board for automotive 12v

**URL:** <https://community.sparkfun.com/t/qwiic-compatible-board-for-automotive-12v/69574>\
**Category:** Qwiic System\
**Created:** [September 15, 2026, 10:16pm UTC](https://community.sparkfun.com/t/qwiic-compatible-board-for-automotive-12v/69574 "2026-09-15T22:16:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mhixson](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/mhixson/32/3106_2.png) [@mhixson](https://community.sparkfun.com/u/mhixson)\
**Post date:** [September 15, 2026, 10:16pm UTC](https://community.sparkfun.com/t/qwiic-compatible-board-for-automotive-12v/69574/1 "2026-09-15T22:16:34Z")

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Hi, I’d like to control a set of [Flex-A-Lite fans](https://www.summitracing.com/parts/flx-116589?seid=srese1#overview) via PWM to vary their speed. The max wattage would be about 170 watts. The controller would either be a Raspberry Pi or Arduino with its own power supply. Is there a board that can PWM these fans and be controlled over I2C?

I have the controller device that came with the fans, but I want to see if I can do better, just as a challenge.

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**Author:** ![YellowDog](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/yellowdog/32/1782_2.png) [@YellowDog](https://community.sparkfun.com/u/YellowDog)\
**Post date:** [September 16, 2026, 2:39am UTC](https://community.sparkfun.com/t/qwiic-compatible-board-for-automotive-12v/69574/2 "2026-09-16T02:39:25Z")

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Nope, you are solidly in “build your own board” territory on something like that.

You’re better off modifying the controller that came with your fans to work with an arduino.