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If you’re getting a “could not wake modem” error it means there’s something wrong with the modem power or connection between the modem and your main board. Are your modem lights turning on? There should be a solid red light and a flashing blue light? Make sure your board is in the socket correctly with the cut corners at the top and all the pins securely in the socket.
What is your main board? What version? (ie Mayfly 1.1) What pin numbers do you have selected for modemVccPin, modemStatusPin, ModemSleepRqPin, and modemLEDPin? What baud rate (modemBaud) have you selected?
Which version of the ModularSensors library are you using?
The LTExBee sketches will not help you.
