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Reply To: Can't read/store values from Yosemitech using WingShield

Home › Forums › Mayfly Data Logger › Can't read/store values from Yosemitech using WingShield › Reply To: Can't read/store values from Yosemitech using WingShield

2019-09-23 at 10:22 AM #13163
Shannon Hicks
Moderator

    It’s hard to tell exactly what’s going on with your wires from the photo, but you should make sure your separate power supplies are sharing a common ground. If you’ve got 12v going to the sensor and 5v going to the board, you need to have the ground of both of those supplies (or batteries) connected to the same ground as the Mayfly.