Wesley,
Can you explain a little more about what you’re trying to do?
Class C mode is used when you want your mDot to receive outside the normal RX windows – in Class C mode the mDot is opening RX windows whenever it is not transmitting. It sounds like you’re trying to transmit frequently but close the RX windows because you’re not expecting a response.
To allow your mDot to transmit more frequently, you can call mDot::setTxWait(false). This will cause the mDot to not open RX windows and mDot::send() will return immediately after data has been transmitted.
Can you provide more detail around your statement “The newer library does not work very well”?
Cheers,
Mike