Inline Arduino Nano

The traces have been cut. Wires soldered to IC pins. The Arduino now sits between the remote control and Robie Jr's movement functionality. M6411B - 24 has yielded some of its black box logic.

Below is a simple schematic indicating where to break the traces. The red dashed line is the break point.

This is what the break in the traces looks like. I used an Exacto knife.

Finally I'm starting to get some traction.

Here is the pin logic for M6411B

Don't forget to run the circuit at 5v when using the Arduino Nano. Use a voltage regulator.