Supported Data Rates
What data rates are supported by the LoPy?
Data rates 0-5 seem to work properly (e.g. for DR3 the data is sent with SF9BW125). But when setting data rate to 6 (SF7BW250), it is sent with SF12BW125 instead.
Also, is FSK modulation supported in LoRaWAN mode? In that case the socket probably needs to be configured differently, right? Can the usocket.SO_DR option still be used in that case?