[RIIM] What application payload length is supported for uplink and downlink packet? Around 84 Bytes. Last Update: September 29, 2021 September 29, 2021 812 RIIM Q&A Related Knowledge Base Posts -[RIIM] How many nodes can a RIIM network have?[RIIM] Can you use pins 29 & 30 on the RC1882 module?[RIIM] Can I buy a component of RIIM development kit individually?