LCD88 is free brain/computer for R/C transmitter. It’s main goal is to make available very flexible and cheap replacement for old transmitter.
Flexible = if you can describe function required to calculate outputs you can (to some extend) put it into LCD88.
Cheap = currently it supports (among others) Arduino Pro Mini clones (available for about $3), LCD display (1’8″ 160×128 graphic could be purchased for about $5 on eBay) and simple keyboard (parts for it costs another few $ at most).
So, if you have old transmitter, you could retrofit it for even as low as $10 🙂
More about it you can find on separate pages: