Cobra DL60A+ upgrade to BLHELI

I recently purchased 2 used Cobra 60A ESCs.  Turn's out that one of them was the older variant that needed a programming card to customize while the other one was newer and ran BLHeli out of the box.  Here's what you need to change to get the older variant to be flashable by BLHeli.


If yours has this sticker, it may be the older variant:

Here are the unmodified old and new PCBs side by side:

Old PCB

New PCB

Here are the components on the new PCB you'll want to pay attention to highlighted:

They have changed the circuit to replace existing diode output logic and pullup to a simple series resistor and a cap to limit input noise.

Zoomed in on the new PCB:

Hope this was helpful to you out there.  Leave a comment if you have any questions or suggestions for future articles.

Thanks!

~pk