R.O.B has three motors to control his movements. He was instructed to move based on commands flashed onto a CRT (tube) television. Those commands are not documented and we don’t have an old TV to cart around so we’ll be looking to hack the circuit board or just hack the DC motors directly. The driver ICs are Sharp IR2C25 and the TV receiver is Nintendo RFC-CPU10.
We’ll be scouring the Interwebs for information. Schematics seem elusive. There are some hacks but not alot of documentation – links to other R.O.B. hacks are in the previous post.
If you want to follow along, post in the comments!
And don’t spread the news too much, so the prices on eBay don’t skyrocket, shhhhh.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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Battery – Red and Black
Spin – Yellow and White
Claws – Red and Brown
Up/Down – Orange and Yellow
this leaves blue and green for the optical sensor
Oooops, blue/green on rainbow ribbon cable are probably a limit switch as there is a 4 conductor white ribbon cable from the board up through the center to the head. That cable: V=BAT, G=GND, S to RFC-CPU10 pin 1 (Guess light sensor), L through 1K ohm to RFC-CPU10 pin 4 (guess Red LED).