Unfortunately the board needs a regulator after the rectification of 9VAC. After rectification, and no load, the DC voltage is around 15V. The RAW pin of the pro micro is 12V max.
With a 9 or 10V regulator, the power dissipation of the regulators are split equally.
bwack
commented
6 years ago
Unfortunately the board needs a regulator after the rectification of 9VAC. After rectification, and no load, the DC voltage is around 15V. The RAW pin of the pro micro is 12V max.
With a 9 or 10V regulator, the power dissipation of the regulators are split equally.