You can't have two drivers (e.g. the BT TX and the other device's TX) driving the same input (e.g. the arduino's RX). At best, you get garbage; at worst, you damage something.
-j
You can't have two drivers (e.g. the BT TX and the other device's TX) driving the same input (e.g. the arduino's RX). At best, you get garbage; at worst, you damage something.
-j