thanks for the info!
i would be really curious about your code…
did you manged to put it together, or someone helped?
since yesterday, i’ve done more research, and figured out why my sketch is crashing with blynk:
unfortunately, there is a serious issue with the esp core softwareserial implementation. since core 2.4.0 softwareserial causes data loss and crashes when used together with wifi 
if you google softwareserial + esp8266 + crash, you will see that lots of other people have this problem. the most recent thread i’ve found is this (but there are lots of others too):
so, i’m pretty sure my code should work, if this issue would be solved. now i wonder if i could use the hardware serial, but that would cause other disatvantages…