current cosumption measurement

RE: current cosumption measurement

Stefan Birnir Sverrisson — Fri, 08 Apr 2016 13:06:51 GMT

Correct !

RE: current cosumption measurement

nirmal@nordic — Mon, 04 Apr 2016 16:24:52 GMT

Thank you very much Stefen...Great to have input from you.... when I put ampmeter in mA range I could see the data on the Master control Panel...

So, what i understood as per you said is , when BLE is transmitting I will have to keep multimeter in mA range [for 30 seconds after I press the button1 or button2 in this case] , and then I can switch to uA range since it is at system_off_mode...

Am I right ???

RE: current cosumption measurement

Stefan Birnir Sverrisson — Mon, 04 Apr 2016 13:10:30 GMT

You should see in the nRF51-DK user guide how to measure current consumption. This is also stated in the nRF51 current consumption guide.

I do not know Fluke 289, but on my multimeter, which does not have auto-range capability, I need to select mA range when doing normal BLE transmission. Otherwise, if I choose uA range, then the multimeter will saturate, as the nRF51 needs a few milliamps of current during the instant of BLE transmission. So set the multimeter to mA setting when doing BLE transmission, and set the multimert to uA setting when measuring low current.

You can set the TX power with sd_ble_gap_tx_power_set after you initialize the softdevice and services.