Tricopter build Part 3 – Flashing the ESC’s

Flashing the ESC’s with SimonK firmware

Parts you’ll need in this step:

3x Blueseries 30A ESC’s

USB ASP programmer

Socket flash tool

Computer

Lazyzero multicopter flashtool

Let’s flash:

So the first thing you should do is to cut the heatshrink off. Try to cut a straight line in one of the sides so it will be easier to reassemble.

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Now read carefully. On the processor itself, there are a round circle or a “dot” you could call it, in one of the corners. That is your reference point on the ESC. Also on the socket flash tool you are going to use there are a red dot on one of the corners as well. These two should line up! Very important or else it won’t work:

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(i marked them up on the picture so you know what to look for)

Next is to plug in your USB flash tool to the computer install the necessary drivers, and open up the Multicopter flash tool by LazyZero.

Remember to unplug the small jumper on the USBasp tool. Otherwise it won’t connect to the computer.

Here is the settings you need to set in the Multicopter flash tool before putting the socket flash tool on the ESC:

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If the image is too small to see anything here is the settings:

Controller  : “Atmega 8-based brushless ESC (8kb flash)”

Firmware :

First box : “BS N-FET”

Second box : “BS N-FET V2012-09-30 by Simon Kirby”

That’s all you need to select. Now basically just connect the Socket firmware flash tool to the ESC with the right orientation and then hit the green button on the far right and wait a few seconds and it will say something like:

“AVRdude.exe finished…”

And you’re done. Now do that to the rest of the ESC’s and wait for the next step.

That’s all for now. Thank you for reading and Goodbye!

/Martin

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2 thoughts on “Tricopter build Part 3 – Flashing the ESC’s

  1. Please explain why you need to flash them?. Are’nt they pre-programmed? or what is the difference between the manufacturer firmware on the ESC and the new firmware you are flashing?
    Thank you.

    • Yes they are preprogrammed. I flashed my ESC’s with new firmware (SimonK) because it will make the ESC’s refresh rate much, much quicker/faster. This means you get alot more stable copter, while the esc can correct for any tilts much quicker! Hope that helps.

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