RUI3 - "AT+SEND" Confirmed/Unconfirmed?

Hello all,

First of all: the RAK3172 is really a great product! Congratulations!

Question: for a sensor with important (e.g. Alarms) and unimportant data I must use AT+CFM to switch confirmation? But the RAK3172 stores the setup and I am afraid, that many changes may wear out the internal Flash of the CPU sometime? In older docus I found “AT+USEND”, but it seems this is no more available?

How to switch reliable beween confirmed/unconfirmed data?

Thanks,
Jo (Germany)

Welcome to the forum @JoEm

If you are controlling the RAK3172 from an external host MCU, AT+CFM is the only way to switch between confirmed and unconfirmed mode.

If you are using RAK3172 with your own firmware, you can control confirmed/unconfirmed mode with the API call to send.

bool send(uint8_t length, uint8_t *payload, uint8_t fport, bool confirm, uint8_t retry);