[RIIM] How much space is available for the user to write their application? 32 KB. Last Update: September 29, 2021 September 29, 2021 947 RIIM Q&A Related Knowledge Base Posts -[RIIM] In order to program the radio module correctly, what pins do I need to use?[RIIM] What is the battery capacity needed for a leaf node, given a 10 byte payload / transmits every minute / 5 year lifetime?[RIIM] Is there an acknowledgement (ACK) from the sensor in order to know if the data has been transmitted correctly?