A few weeks ago we found that some of the version 0.3 Mayfly boards were assembled by the manufacturer with an incorrect voltage regulator on the section of the board that generates the switched 5-volt boosted supply. This error does not affect any other functionality or features on the Mayfly. The only issue is that you will see 3.3 volts on the “Sw_5v” pin instead of 5 volts. We hav...Read More
Details about Mayfly Data Logger board features, jumper settings, and board schematic, as well as a Mayfly vs. Arduino Uno comparison and information about the Mayfly Starter Kit.