dan@wachusett posted an update 4 years, 3 months ago
Thanks for your help troubleshooting. Our Mayfly successfully logged data from the Hydros21 over the weekend. Next we will activate the SIM card and upload the sketch to send data to the Data Sharing Portal. Overall the instruction manual was fairly accurate and got me through most of the steps to program the Mayfly very easily. Other than the 2 microSD card issue, the only other stumbling point was that a 57600 baud rate would not send output to the serial port monitor after the SDI-12 Address Change sketch was uploaded. I had to use 115200.