Quick Review: Turnigy Multistar V2 10A ESC with BLHeli

When I was building my 250 class quadcopter I wanted to make that cheap. So, I’ve bought cheap ESC: Turnigy Multistar V2 10A ESC for S2-3 with 2A LBEC. And yes, they are cheap: slightly less than 8EUR per piece. With preloaded BLHeli software. Cool, isn’t it? Well, not so cool after all, but first things first.

Turnigy Multistar 10A V2 ESC With BLHeli and 2A LBEC 2-3S

Preloaded BLHeli software (version 13.1 in the ones I’ve ordered in late June 2015) simplifies a lot. No need experiment to upload BLHeli and 1-wire interface is available from the start. Also update to BLHeli 14 was pretty simple without any glitches. Unfortunately, there is a reason those ESC are so cheap…

After 2 months of using them in my 250 quadcopter I can state the following:

Pros:

  • They are cheap all right,
  • None of them burned yet so it’s a good sign,
  • Preinstalled BLHeli and easy to upgrade

Cons:

  • 10A is not much for a quadcopter needs, slightly higher max current would be welcomed . But this is my fault, not those ESC,
  • they do not support Damping Light, so no active breaking on those ESC (booo),
  • OneShot125 on those ESC behaves strange when throttle is below lower limit. They screech. Fortunately nothing bad happens in flight,
  • 2A LBEC regulator is in fact double LM7805. And it heat a lot.

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Flash BLHeli to Afro ESC

SimonK is most widely recognized ESC firmware in multicopter world. But there is a second option, in many ways much better than SimonK firmware. It is called BLHeli. It supports many different ESC, including both Atmel and SiLabs based. Plus, it has a cool software that allows you to configure you ESC without programming card. Just connect your ESC via serial-to-USB interface and you are ready to go.

AfroESC were supposed to be state of the art controllers, SimonK out of the box, easy to flash thank to special USB interface/programmer. And ready to accept different software, BLHeli included. There is only one huge “but”. You can buy them, you can buy Afro USB Linker (Turnigy USB Linker is exactly the same), but nobody will tell you how to do it. Number of articles is very limited, and the only useful I’ve found is this one. So, here we go, now there will be a second one!

How to flash BLHeli to AfroESC

What you will need:

  • AfroESC (obvious)
  • Afro USB Linker / Programmer
  • Windows machine with drivers (keep reading)
  • BLHeliSuite
  • LiPo battery, the same you use on your drone

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Brushed or brushless – RC motor dilemma

You want to fly, you need a motor. Electric, internal combustion, jet, ion, gravity. It does not matter. And since gravity engines are not invented yet, ion has no place in atmosphere and jet or internal combustion are kind of non-practical for multirotors usage, we have to stick with electric motors.

Brushed DC motors

In RC world there are two types of DC motors we can choose from: brushed and brushless. The brushed ones are wth us for decades. Cheap and proven, but with a few downsides. First of all, they have brushes and brushes wears off because of friction. After time, they stop to conduict electricity and has to be replaced. Plus, they cause sparks, lowers efficiency, make noise, are sensitive to dust and so on… This is why, we do not use brushed DC motors any more.

Brushless BLDC motors and ESC

 

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