This is an Arduino 2.4GHz radio and IR transmitter for STM32

Features:

IR transmitter for "LEGO" Powerfunctions and trains as well as for "MECCANO" motors
2.4GHz radio transmitter for RC cars, helicopters etc.
4 analog axes, 2 mode switches (joystick buttons)
1 potentiometer for adjustments like the MRSC stability control
4 push buttons for transmission mode and vehicle selection as well as menu navigation
10 seletcable vehicle addresses, so you can use it for more than one vehicle
3.3V, 72MHz STM32F103C8T6 ARM board
Atmel AVR version see: https://github.com/TheDIYGuy999/RC_Transmitter
2.4GHz NRF24L01 radio module
Support for 0.96" I2C OLED.
Configuration menu for: Channel direction reversing, servo travel adjustment (independent for each vehicle)
Configuration values are stored in EEPROM
NRF24L01+PA+LNA SMA radio modules with power amplifier are supported from board version 1.1
very compact
Eagle schematic will follow
PONG Game included (runs much faster than on the Atmel AVR version)

New in V 2.0:

Initial commit starting with V2.0, because the features are the same as in V2.0 for Atmel ARM MCU's
Pinout according to the software comments. An Eagle schematic will follow later
Works together with my Atmel AVR based receivers or the transmitter in "Tester Mode"
OLED now driven by the u8g2 library in "full buffer" mode. This is much faster, but requires more RAM (no problem on the STM32)
Lego IR ist tested
Meccano IR should work in theory, but the signal was only tested with an oscilloscope
The emulated STM32 EEPROM seems to work properly, but the required "eepromHandler.h" is entirely new
This version may still contain bugs. It was only tested on a breadboard

New in V 2.01:

See pictures

The biggest and the smallest vehicle:

The Atmel AVR version:

The STM32 test rig on a breadboard: