[RIIM] How many GPIOs does the Border Router have? 9 GPIOs. Last Update: September 29, 2021 September 29, 2021 849 RIIM Q&A Related Knowledge Base Posts -[RIIM] How many nodes can exist in the entire network?[RIIM] Does RIIM mesh use flooding for routing downlink messages?[RIIM] Is there a tool that we can we use to check the network quality (measuring the RSSI)?