The slow blinking RX light on ORX is typically "brownout detect" -- it's the RX's way of saying I've lost power since the last time the TX cycled power. The flipside version is the "drop detect" which is the red blinking light, meaning the RX has lost connection (power-cycling the TX will do this). It's a fun stupid trick ORX's will do and handy in spotting why an airframe got shot down -- brownout or drop.
As for your headache . . .
Thank Hobby King.
Between the 2.1.5 and Mini versions, they remapped the pins.
In the 2.1.5, the channel order went AETR1 from top to bottom. understandably, to shrink everything stuff moved around . . . but they also changed the channel order to TAER1 from bottom to top.
Steveis's ROM expects the PPM data to come in on input 1, which on a 2.1.5 board is the aileron channel. on the mini, it's still the aileron channel, but it's now the forth pin, not the third.
The easiest way to fix this:
- remove the signal wire from the KK2Mini side connector.
- using a SMALL heatshrink, cover the metal portion of the plug you've removed, flush with the end. shrink it down
- plug the connector as you have, plug the newly separated signal wire into the next pin after the connector.
That should get you up and running
