![]() Delay between sending and receive was about the same as without sleep mode.Īnd 1mA is not really that much considering we are connected to a regular 2G network (at least I am) with no added delay. Sending an SMS to the module in this state resulted in a short burst to around 60-80mA for about 2-3s after which it went down to 1mA almost instantly. ![]() ![]() (This would mean a worst case response time of 40s which might or might not be enough). Looking at the pdf the lowest current without total connection loss seems to be around 0.7mA with a 40s eDRX window. Maybe eDRX can do a little bit but don't expect wonders. I don't think we can get a lot lower than this without losing connectivity. I did, however, notice some APIs related to sleep, which I do not yet use, so this might just need tweaking. Note that I had to delete my dam module first since the running module apparently kept it from sleeping. I just did the same and I'm also down to ~1mA with periodic spikes. The sentence about remaining registered does not mean that you can receive (or send) stuff, but just that the delay between wakeup und being online again will be shorter since the module does not need to exchange configuration with the network (as long as your still in the same mobile cell). Unavailable except the RTC function.PWRKEY and timer expires Remains registered on the network and there is no need to re-attach or In this mode, The mode is similar to power-off. Setting AT command” AT+CPSMS=1” can be enable the PSM mode. I took a look at the Hardware design Guide and on there is a table that clearly states that during PSM you can't receive SMS:
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