The goal of brainlink is to adapt several functions in RAINLINK to make it rely on less external packages. It's essentially a beta version of the RAINLINK package (https://github.com/overeem11/RAINLINK) which is used to retrieve rainfall intensity from the signal attenuation of Commercial Microwave Links (CMLs).
You can install the development version of brainlink like so:
devtools::install_github('bwalraven/brainlink', build_vignettes=TRUE)
browseVignettes('brainlink')