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Old 06-24-2011, 01:06 PM   #55 (permalink)
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Join Date: Apr 2010

Where did you connect the yellow wire? If you connected it to the + motor output like Tnt then you may have to add a 1.8k to 2.4k resistor across the mCP X motor + and - terminals for it to work correctly. I got this input from Steve the designer of the Steve converter. Evidently the Steve has a high input impedance and may need a pull down when connected to an open drain off a P channel FET like the mCP X + motor output. Tnt you may want to add a resistor or just connect the yellow wire to the IC output at the resistor like Jon did as it is an active signal with fairly low impedance. Steve also said that the mCP X has some voltage sensing circuitry that may need the pull down resistor to work correctly.

Once again just because it works doesn't mean it is right (an old saying of mine)


Originally Posted by adroc3905 View Post
Ok what’s the trick here? Everything is wired correctly and all I get is a quarter spin on the main blades when I throttle up and then nothing else. I wired the yellow steve converter wire to the board (at the right spot) and the white/red/blk wires on the esc to the white/red/blue wires on the converter.

Not sure what is wrong. Does the esc or tx need to be programmed or set to recognize high and low the castle esc's.

Edit: esc beeps when lipo is plugged-in however every so often the esc will go full throttle and respond to no stick input (high or low) from my tx and then other times the esc does nothing and I get no spin. I wonder if the converter is getting the signal from my tx to the esc.
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