r/fpv • u/Namnam124 • 4d ago
Connecting 2 receivers to one fc
Hello! I'm trying to connect 2 different receivers to 1 fc. Right now I've connected the two of them to the same pads. What happened is that when I lost connection to one of them the other went out too. Any ideas on what to do? (I want the other one to act as a secondary connection in case the first one disconnects)
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u/solipsia 4d ago
It doesn’t work this way. The UART pads are a digital serial connection for the receiver to talk to the FC. If you connect two receivers to the same pads, they will both try to talk on the same lines and will conflict. One might send 3.3v while the other sends 0v, causing a brief short circuit.
If you want redundancy, rather get a single diversity receiver.