|Figure 1. Current usage obtained in previous post. Smaller spikes are due to measurement while larger spikes are due to measurement and communication. Communication power consumption is targeted in this post.|
|Figure 2. Current consumption after implementing optimizations. Communication current consumption has reduced by one third. Wow.|
While these optimization reduce the amount of current used when communicating, the most effective optimization might still be to just communicate less often by sending more measurements per communication. This has the flip side of having a lower success rate for transmission and thus requiring more retransmissions, which affect the real average current consumption in a non-predictable way. I might research this further later, but as the current consumption is already quite close to the lowest limit set by the power save mode current, the pay off may be very slight.