Hi, I am currently working to measure power consumption on a custom board and I found huge power consumption while advertising (BMD-300 1.15mA DCDC enabled).
So I have tried to do the measurement on my NRF52DK to see if there is any difference with the following procedure:
- Cut the SB9 trace
- bypass the diode with a short circuit on SB12
- Power the board with the provided coin cell
The full procedure is described Here
The program loaded on the NRF52 is ble_app_uart_pca10040_s132.hex directly provided by the nRF5_SDK_12.1.0_0d23e2a.zip. The program is loaded with nRFgo Studio.
And I measure:
- -On advertise + Led1 blink: 2.85mA/3.05mA
- -Connected + Led1 ON: 2.29mA
- On sleep + Led1 OFF: 2.20µA
So my question is this normal to have so much power consumption on the NRF52DK or is my measurement are biased by my multimeter (Metrix Mtx 3281)
Thanks you for your answers !