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Some of the power rail information provided in the Musca-A TRM was incorrectly stated. More accurate date is provided below.
Further to this, Musca-A2 varC boards (available from December 2018) have been produced with a change of components to allow higher power shields to be used.
Musca-A1(varA) & Musca-A2 (varB)
The following table shows the maximum loads that the Musca-A1 varA and Musca-A2 varB board 3V3 and 5V power rails draw from the power supplies:
The maximum value of decoupling capacitance that can be fitted to the Arduino 3V3 and 5V power rails is 22μF.
Musca-A2 (varC)
The following table shows the maximum loads that the Musca-A2 varC board 3V3 and 5V power rails draw from the power supplies:
The maximum value of decoupling capacitance that can be fitted to the Arduino 3V3 power rail is 100μF, and 5V power rails is 22μF.