Copter-4.0 BlHeli (regular atmel) Passthough to ESCs

ArduCopter Copter 4.0
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I’m really unsure if this configuration will even work, but I’m trying to change settings on my ESCs with BlHeli configurator. I’m using a pixhawk 4 with copter-4.0.0 in hex configuration. I tried setting SERVO_BLH_AUTO to 1, but I’m not sure where to go from there. What baud should I use when connecting? Mission planner doesn’t seem to care what I use, which is why I’m unsure.

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Pretty sure you need blheli 32

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I thought that might be the case, but this video states that you just have to use the right configurator tool.

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https://ardupilot.org/copter/docs/common-dshot.html note 3

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There is an open issue for blheli_s https://github.com/ArduPilot/ardupilot/issues/9730 but I don’t think it will be addressed. Even if it is strange because the blheli code comes from betaflight and betaflight support blheli_s.

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Watching this, as this will likely come bite me in the butt soon here with my various SimonK/BlHeli 8bit ATMEL ESCs that need updating/tweaking.