https://devzone.nordicsemi.com/f/nordic-q-a/7937/low-power-current-measurement-toolI am wondering how to precisely measure my power consumption. Till now, I have been using INA216 on PCA10004 board + labView for acquisition, but it is not precise enough (I can&#39;t get measurements lower than about 35microAmps, when i expect slightly smalleren-USTelligent Community 13Thu, 02 Jul 2015 09:36:52 GMThttps://devzone.nordicsemi.com/thread/28389?ContentTypeID=1Thu, 02 Jul 2015 09:36:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a29f037f-01b7-485f-a360-63ddda30abd8&#216;yvind Karlsen<p>Hi,</p> <p>High accuracy µA measuring equipment is expensive. What you are asking for is something which has a very high dynamic range, which is when you have a large span of currents, 50mA to 1µA, you want to measure in one sweep. High dynamic range will jump you up another level of expense.</p> <p>The cheap solution for you will probably be something like the µCurrent or a medium grade multimeter or ammeter. If you already have a <strong>good</strong> oscilloscope it might be possible to measure the current by measuring voltage over a 1 ohm resistor.</p> <p>The trade-off is that you will have to be very careful with your test scenarios. That means that you might want to use a capacitor or coil to smooth out your current spikes to lower the dynamic range. You may even have to do measurements for just a single state(idle, active, etc) at a time and then do maths to get accurate results.</p> <p>Best regards,</p> <p>Øyvind</p><div style="clear:both;"></div>