Pypilot motor controller

[CapnKernel]

I have been testing today a new design which drives mosfets directly from the arduino and no ESC is used.

... adapt to whatever hardware you can find that will work. I will do my best to help

Is it this one?

  http://pypilot.org/schematics/hbridge_controller.pdf

What parts would you recommend for Q1-Q4, Q5, and your TVSs?

Someone asked me in a PM what MOSFETs I've used.

For the autopilot on my boat, I use a VNH5019 module (single channel version):

  https://www.aliexpress.com/item/4000046778315.html

Rds is 18mOhm per leg, which I guess means a total of 36mOhm when driving a load.

For the discrete MOSFET approach, I have been trying out the FQP30N06L, mostly because it is cheap and available here in Australia:  

  https://au.element14.com/on-semiconducto...dp/1695498

Rds is 27mOhm, not great, but good enough for what I want, which is to make sure any changes I make to motor.ino don't break H-bridge mode.  

For my next design, I plan to use the KND3308A, mostly because JLC will fit it on my PCBs:

  https://lcsc.com/product-detail/MOSFET_K...88764.html

Rds is 6.2mOhm, Qg is 76nC.  I don't know what MOSFETs Sean uses, but he says they are 2-3mOhm, and 70nC.  They probably cost a lot more than the KND3308A.

For anyone else using discrete MOSFETs, what part did you choose?