testing TTN node with RN2483 firmware 1.0.1
loaded with the basic sketch
Rx = 3.8 mA
Tx = 14.5 mA
first conclusion … don’t leave the basic sketch in the node with the batteries 
I will have a closer look at the ‘sleeping’ code … and ask @Charles and @rocketscream , the low power specialists, for advice how (and if possible) to improve this TTN device
now I will upgrade the RN2483 firmware and test again :
ok firmware updated to 1.0.3 with the passtrough sketch and the semtech tool
- that was a bit disappointing… with the same basic sketch but with the updated firmware no difference, continue