calculate daily current consumption given the advertising/non advertising test value

Question

51822+LIS3DH 
 I have tested my board and got the current consumption value. I use slow advertising only and the interval is 2 seconds. Follow is the result: 
 1. advertising. 0.03MA for each advertising 
 2. when not advertising. 0.002MA. 
 Above value are under the case that the lis3dh sensor is power off. I need to test the daily current consumption when the lis3dh sensor is not using. Here is my way of calculating: 
 1. non-advertising, 24 hours * 0.002MA = 0.048MA 
 2. advertising. I assume the advertising time is 1ms. So 24 hours * (0.03 *1 ms / 2000ms) / 2 = 0.00018MA 
 
 My questions are: 
 1 .Is the 1ms advertising time correct assumption? I don't know where to get this info and I just made a guess. The advertising payload is low, only one service UUID, nrf name, no appearance, 
 2. Is the way my calculation algorithm correct? If not ,what's the right way to calcualte? 
 
 Thanks,

Simonr · Accepted Answer

Hi 
 You're absolutely correct, I'm sorry I didn't notice that you were using the nRF51. If you'd like measurement as accurate as possible, I suggest getting a Power Profiler Kit and a DK in order to measure the current consumption of your device with our Power Profiler app in nRFConnect. 
 If you want more of an estimate instead I still suggest looking at the Online Power Profiler, as the outline of one advertisement will be similar. One advertising event will last for ~3.5ms each time it advertises, so you have to put that into consideration. Other than that, I don't think your estimate is off by that much, but I would suggest doing some actual measurements. 
 Best regards, 
 Simon

calculate daily current consumption given the advertising/non advertising test value

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