# Picar-x Robot Hat and robot arm

**URL:** <https://forum.sunfounder.com/t/picar-x-robot-hat-and-robot-arm/606>\
**Category:** General\
**Created:** [October 23, 2023, 10:18pm UTC](https://forum.sunfounder.com/t/picar-x-robot-hat-and-robot-arm/606 "2023-10-23T22:18:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![SriRam](https://avatars.discourse-cdn.com/v4/letter/s/46a35a/32.png) [@SriRam](https://forum.sunfounder.com/u/SriRam)\
**Post date:** [October 23, 2023, 10:18pm UTC](https://forum.sunfounder.com/t/picar-x-robot-hat-and-robot-arm/606/1 "2023-10-23T22:18:06Z")

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The pic carX robot hat has extra PWM pins ( i think 3) . Can one use these pins to control the robot arm?  
I am looking at reusing the pi carx robot-hat board to control the robot arm.

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**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\
**Post date:** [October 24, 2023, 8:55am UTC](https://forum.sunfounder.com/t/picar-x-robot-hat-and-robot-arm/606/2 "2023-10-24T08:55:38Z")

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You can, but you need some code programming skills, because you need to modify the code.

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<div class="post-metadata">

**Author:** ![SriRam](https://avatars.discourse-cdn.com/v4/letter/s/46a35a/32.png) [@SriRam](https://forum.sunfounder.com/u/SriRam)\
**Post date:** [October 24, 2023, 7:01pm UTC](https://forum.sunfounder.com/t/picar-x-robot-hat-and-robot-arm/606/3 "2023-10-24T19:01:48Z")

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coding is fine with me. Any pointer to code or docs would be helpful.  
Also whats the process to buy the robot arm without the board?

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<div class="post-metadata">

**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\
**Post date:** [October 25, 2023, 3:20am UTC](https://forum.sunfounder.com/t/picar-x-robot-hat-and-robot-arm/606/4 "2023-10-25T03:20:37Z")

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You can refer to the git code for picar-x, robotic arm:

> **[GitHub - sunfounder/picar-x at v2.0](https://github.com/sunfounder/picar-x/tree/v2.0)**
>
> v2.0

> **[GitHub - sunfounder/piarm at 2.0.0](https://github.com/sunfounder/piarm/tree/2.0.0)**
>
> 2.0.0

I don’t know if this is the right product for you:

> **[Raspberry Pi Robot Arm Kit](https://www.sunfounder.com/collections/robotics/products/piarm_robot_kit)**
>
> The raspberry pi arm can be controlled by remote control and build-in dual Joystick on Ezblock, which is more friendly to raspberry pi beginners. Besides, more professional raspberry pi programming is also supported on Jupyter. For Raspberry Pi 4B,...