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:


LCD88 – free R/C transmitter — 3 Comments

    • More about displays you could find here: https://majek.sh/lcd88-free-rc-transmitter/lcd88-hardware/
      Basically, all modules are connected:
      – power supply (5V is fine) and ground
      – lcd backlight: ground and +5V via resistor (30-75R)
      – SCK: via level converter to SCK/D13 on Arduino
      – SDA: via level converter to MOSI/D11
      – CS: via level converter to D4
      – AO: vial level converter to D2
      – RESET: via level converter to D3

      Phrase for ebay search: “1.8 tft spi 128×160 module”. You will get 3 kinds of them. Red and blue require level converter for connection to Arduino. White one (for Arduino Esplora) have built-in level converter, so it can be connected directly to Arduino.

      I hope I’ll find some time soon to make build log with everything explained.

  1. man….this is awsome ….this project really worth continuity i think even more than OPENTX becouse with a Dirt cheap atmega328 if u can archive this much think about what this can do in the super beefy STM32F205 on taranis….looking forwward to contribute my self ….keep up the good work

Leave a Reply

Your email address will not be published. Required fields are marked *

HTML tags allowed in your comment: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>