# Is Ardusub compatible with pixhawk 4 **URL:** \ **Category:** ArduSub\ **Created:** [July 14, 2018, 7:51pm UTC](https://discuss.bluerobotics.com/t/is-ardusub-compatible-with-pixhawk-4/2985 "2018-07-14T19:51:38Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![ShehabAldeen](https://avatars.discourse-cdn.com/v4/letter/s/bc8723/32.png) [@ShehabAldeen](https://discuss.bluerobotics.com/u/ShehabAldeen)\ **Post date:** [July 14, 2018, 7:51pm UTC](https://discuss.bluerobotics.com/t/is-ardusub-compatible-with-pixhawk-4/2985/1 "2018-07-14T19:51:38Z")
Hello, I wanted to ask if the Ardusub firmware is compatible with the pixhawk 4 ---
**Author:** ![jwalser](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/jwalser/32/2234_2.png) [@jwalser](https://discuss.bluerobotics.com/u/jwalser)\ **Post date:** [July 16, 2018, 3:31pm UTC](https://discuss.bluerobotics.com/t/is-ardusub-compatible-with-pixhawk-4/2985/2 "2018-07-16T15:31:07Z")
The stable version of ArduSub is not compatible. ArduSub 3.6 will be compatible when it is released, you will need to use the development version until 3.6 is released. I have not tested with this flight controller. ---
**Author:** ![williangalvani](https://avatars.discourse-cdn.com/v4/letter/w/6f9a4e/32.png) [@williangalvani](https://discuss.bluerobotics.com/u/williangalvani)\ **Post date:** [August 10, 2020, 1:13pm UTC](https://discuss.bluerobotics.com/t/is-ardusub-compatible-with-pixhawk-4/2985/3 "2020-08-10T13:13:32Z")
Split this topic on August 10, 2020, 1:13pm UTC 6 posts were split to a new topic: [Is Companion compatible with Raspberry Pi 4?](https://discuss.bluerobotics.com/t/is-companion-compatible-with-raspberry-pi-4/7947) ---
**Author:** ![andrew.keefe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/andrew.keefe/32/5798_2.png) [@andrew.keefe](https://discuss.bluerobotics.com/u/andrew.keefe)\ **Post date:** [August 9, 2020, 10:21pm UTC](https://discuss.bluerobotics.com/t/is-ardusub-compatible-with-pixhawk-4/2985/4 "2020-08-09T22:21:45Z")
An old thread, but can anyone update us on the compatibility of the Pixhawk 4 using the stable branch which I believe is V4.0.1?