This is a part of [rosserial](https://github.com/ros-drivers/rosserial) repository to communicate with ROS system through a USART for STM32 embedded system.
float64 is currently of AVR_Float64DataType, a custom type implemented for arduino because it doesn't support float64 type.
It makes no sense to use this type of data since stm32 supports float64 variables
float64 is currently of AVR_Float64DataType, a custom type implemented for arduino because it doesn't support float64 type. It makes no sense to use this type of data since stm32 supports float64 variables