Mailing List flyrotary@lancaironline.net Message #64832
From: Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: How to make a program change to my EC3?
Date: Sat, 25 May 2019 09:36:11 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Another option would be the MegaSquirt/MicroSquirt family of controllers. Seems to be pretty mature tech, and at least in the case of the MicroSquirt, a very compact and affordable package.

Charlie

On 5/25/2019 9:28 AM, Finn Lassen finn.lassen@verizon.net wrote:
Tracy suggested I look into https://speeduino.com/wiki/index.php/Speeduino

Sounds like a low-cost solution. But would require hardware changes and programming.

Finn

On 5/25/2019 9:59 AM, Sam Hoskins sam.hoskins@gmail.com wrote:
I have an EC3 installed in my O-200 powered Quickie Q-200. I was wondering if anyone might have any suggestions.?? I need a simple (famous last words) programming change and was wondering if anyone might have any idea how I might do this.

The problem is, the spark is not retarded during starting and all too often I get a nasty kickback. Doesn't happen all the time, but it still occurs.?? I have figured out that first running the starter without the ignition turned on seems to "loosen up" the engine and I have a better chance. This kickback has resulted in damage to the starter bearing and I have returned it to B&C for repairs.

The circuit hoard has two main chips which are removable. The "A" side is the main controller for normal operations and the "B" side is the redundant side.??

Is there any someone could figure out what programming language was used, then modify it a bit?

Tracy programmed Lyn French's controller to retard the spark during starting, so I know it can be done.

If I can't make this programming change, I'll have to spend $3,000 - 5,000, installing another system, such as SDS, so I'm making a last ditch attempt.?? I would appreciate your thoughts.

Thanks.

Sam






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