[RIIM] Can you use pins 29 & 30 on the RC1882 module? No. These pins are reserved for internal use. Last Update: September 29, 2021 September 29, 2021 549 RIIM Q&A Related Knowledge Base Posts -[RIIM] In case the customer needs to have a backup gateway, can RIIM be operated with two gateways or more gateways in one network?[RIIM] Are all the CC1312R GPIOs mapped to RC1882 pins?[RIIM] Is there an acknowledgement (ACK) from the sensor in order to know if the data has been transmitted correctly?