ESP32-e-Paper-Weather-Display
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Add RHS y-axis functionality to DrawGraph(). Implement for precipitation forecast #202
Moved old PR to a new local branch: feature/plot-axis-rhs. This closed the old PR but the conversation may still be of interest.
Reposting it as a new PR.
PR enables a 2nd line to be added to a plot by creating a RHS y-axis. This enables, for example, the presentation of rainfall amount (left hand axis) with probability of rainfall (right hand axis):