ESC for EMAX RS2205 2300kv BLDC

Hey guys!

Complete and utter noob here. I am looking for a suitable ESC for the EMAX RS2205 2300kv BLDC mounted on a Martian II 220mm frame. I already have a Pixhawk PX4 2.4.7 and plan on using that. I will be using the drone for indoor videos and/ or target tracking.

I had shortlisted the Emax BLHeli Series 30A ESC, but saw a lot of people posting about issues with it(esp. on YouTube). As of now, i need a solution which works out of the box and want to avoid the nitty-gritty of the firmware etc.(I also read that EMAX ESCs may face issues with the Pixhawk FC)

I would be immensely helpful if someone could suggest a suitable ESC which comes with the firmware pre-flashed.

Here are a few which i had shortlisted(based on motor ratings and referred this link: https://oscarliang.com/top-5-best-mini-quad-esc/):

1. Emax BLHeli Series 30A ESC(https://emaxmodel.com/catalog/product/view/id/101/s/blheli-series-30a-esc/)
2. Emax Bullet Series 35A ESC(https://emaxmodel.com/bullet-series-35a-esc.html)
3. Spedix IS30 ESC(https://rcmumbai.com/catalog/product/view/id/2203/s/spedix-is30-2-4s-30a-esc-set-of-4/category/47/)
4. Racerstar RS30A V2(https://m.racerstar.com/racerstar-rs30a-v2-30a-blheli_s-esc-opto-2-4s-support-oneshot42-multishot-16_5-dshot600-p-9.html)
5. Holybro Tekko32 35A(http://www.holybro.com/product/tekko32-esc35a/)
6. Aikon AK32 35A ESC(https://www.aikon-electronics.com/index.php?id=19)

I would be grateful for any help I receive.
Regards.

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Replies

                  • Hey Ron,

                    There is an 'SB' port beside the 'RC' port(both are part of the servo rail).
                    Why should i connect to the 'SB' port and not the 'RC' ?
                    Also, i am assuming that i will have to use a Zener diode as described here(https://ardupilot.org/copter/docs/common-powering-the-pixhawk.html#...) when powering the servo rail?

                    And is it possible to initialize and set the ESC parameters using the QGS Ground Control station alone, i.e., without using an RX and TX?

                    Regards,
                    Ash!sh
                    Powering the Pixhawk — Copter documentation
                    • HI Ashish .. You can "tune" ESCs via a BlHeli parameter set, but normally that would not be required to operate your quad .. Also flight controller parameter tuning should not be required for you to operate your quad. Go ahead and fly using all default parameters .. Your quad might seem a bit sluggish, but as a beginner that just makes it easier to operate .. Autotune works well with Arducopter firmware, but learn to fly before tuning ... Power the UBEC from power distribution and connect to an unused output on your flight controller .. it will provide power across the output rail .. Are you doing this for fun or do you have a mission or education objective?
                    • Hey Ron.

                      Will do. I am posting the questions here, but will email them too.

                      ESC:
                      (i) Yeah, i looked it up and Mission Planner and QGC can callibrate the ESCs. Also, the Dshot protocol allows ESCs to be used without callibration.

                      (ii) There is also something called ESC parameter tuning(different than FC parameter tuning/ trimming). If as a beginner, my aim is to get the quad flying and to control it to perform simple manoeuvres, is that a necessary step?
                      Or the parameters' default value will allow me to start flying?

                      Powering the Receiver:
                      (i) I will be powering the receiver using the UBEC and the UBEC is supposed to be connect to the Power Distribution Board. Am i correct here?

                      I am really sorry, i keep pestering you with all theses questions. I realise that i am sort of taking you for granted, but, thanks a ton for being patient with this.

                      Regard.
                    • Hi Ashish ... it might be easier to ask questions by sending an email to info@KashmirWorldFoundation.org or Ronald@KashmirWorldFoundation.org

                      The "RC" port is the PPM RC input and the "SB" port is the PPM output. Zener diode is not required because you will not be powering the Pixhawk from the rail. You will be powering the Pixhawk from the Power Module. For large aircraft I also provide backup power to the USB port.

                      As a beginner, I would suggest you use Mission Planner rather than QGroundControl. You can "calibrate" the ESCs via Mission Planner.
          • Thanks a lot for your advice, Ronald. This puts my mind to ease a little.

            Regards.
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